diff --git a/README.md b/README.md
index 2f8c448468..7effcc7073 100644
--- a/README.md
+++ b/README.md
@@ -57,8 +57,8 @@ For advanced user, you can use the repository: see the [Using git repository](ht
 
 ### Next release
   * STM32F1
-    * BluePill F103C8 (on going)
-    * MapleMini F103CB (on going)
+    * BluePill F103C8 (Basic support, no USB)
+    * MapleMini F103CB (Basic support, no USB)
 
 ## Troubleshooting
 
diff --git a/boards.txt b/boards.txt
index 6b7bbd34d6..d9741342fd 100644
--- a/boards.txt
+++ b/boards.txt
@@ -7,6 +7,7 @@ menu.usb=USB interface
 
 menu.opt=Optimize
 menu.upload_method=Upload method
+menu.flash=Flash Memory Size
 
 ################################################################################
 # Nucleo 144 boards
@@ -374,6 +375,83 @@ Disco.menu.upload_method.STLink=STLink
 Disco.menu.upload_method.STLink.upload.protocol=STLink
 Disco.menu.upload_method.STLink.upload.tool=stlink_upload
 
+################################################################################
+# Other boards
+
+###############################
+# Generic F103
+GenF103.name=Generic STM32F103 series
+
+GenF103.build.vid=0x1EAF
+GenF103.build.pid=0x0004
+GenF103.vid.0=0x1EAF
+GenF103.pid.0=0x0004
+
+GenF103.build.core=arduino
+GenF103.build.board=GenF103
+GenF103.build.extra_flags=-D{build.product_line} {build.enable_usb} {build.xSerial}
+
+# BLUEPILL_F103C8 board
+# Support: Serial2 (USART2 on PA3, PA2) and Serial3 (USART3 on PB11, PB10)
+GenF103.menu.pnum.BLUEPILL_F103C8=BluePill F103C8
+GenF103.menu.pnum.BLUEPILL_F103C8.upload.maximum_data_size=20480
+GenF103.menu.pnum.BLUEPILL_F103C8.build.mcu=cortex-m3
+GenF103.menu.pnum.BLUEPILL_F103C8.build.board=BLUEPILL_F103C8
+GenF103.menu.pnum.BLUEPILL_F103C8.build.series=STM32F1xx
+GenF103.menu.pnum.BLUEPILL_F103C8.build.product_line=STM32F103xB
+GenF103.menu.pnum.BLUEPILL_F103C8.build.variant=BLUEPILL_F103C8
+GenF103.menu.pnum.BLUEPILL_F103C8.build.cmsis_lib_gcc=arm_cortexM3l_math
+
+GenF103.menu.flash.C8=64k (default)
+GenF103.menu.flash.C8.upload.maximum_size=65536
+GenF103.menu.flash.C8.build.ldscript=ldscript.ld
+GenF103.menu.flash.CB=128k
+GenF103.menu.flash.CB.upload.maximum_size=131072
+GenF103.menu.flash.CB.build.ldscript=ldscript_cb.ld
+
+# Upload menu
+GenF103.menu.upload_method.STLinkMethod=STLink
+GenF103.menu.upload_method.STLinkMethod.upload.protocol=STLink
+GenF103.menu.upload_method.STLinkMethod.upload.tool=stlink_upload
+
+GenF103.menu.upload_method.serialMethod=Serial
+GenF103.menu.upload_method.serialMethod.upload.protocol=maple_serial
+GenF103.menu.upload_method.serialMethod.upload.tool=serial_upload
+
+###############################
+# Maple
+Maple.name=Maple series
+
+Maple.build.vid=0x1EAF
+Maple.build.pid=0x0004
+Maple.vid.0=0x1EAF
+Maple.pid.0=0x0004
+
+Maple.build.core=arduino
+Maple.build.board=Maple
+Maple.build.extra_flags=-D{build.product_line} {build.enable_usb} {build.xSerial}
+
+# MAPLEMINI_F103CB board
+# Support: Serial2 (USART2 on PA3, PA2) and Serial3 (USART3 on PB11, PB10)
+Maple.menu.pnum.MAPLEMINI_F103CB=Maple Mini F103CB
+Maple.menu.pnum.MAPLEMINI_F103CB.upload.maximum_size=131072
+Maple.menu.pnum.MAPLEMINI_F103CB.upload.maximum_data_size=20480
+Maple.menu.pnum.MAPLEMINI_F103CB.build.mcu=cortex-m3
+Maple.menu.pnum.MAPLEMINI_F103CB.build.board=MAPLEMINI_F103CB
+Maple.menu.pnum.MAPLEMINI_F103CB.build.series=STM32F1xx
+Maple.menu.pnum.MAPLEMINI_F103CB.build.product_line=STM32F103xB
+Maple.menu.pnum.MAPLEMINI_F103CB.build.variant=MAPLEMINI_F103CB
+Maple.menu.pnum.MAPLEMINI_F103CB.build.cmsis_lib_gcc=arm_cortexM3l_math
+
+# Upload menu
+Maple.menu.upload_method.STLinkMethod=STLink
+Maple.menu.upload_method.STLinkMethod.upload.protocol=STLink
+Maple.menu.upload_method.STLinkMethod.upload.tool=stlink_upload
+
+Maple.menu.upload_method.serialMethod=Serial
+Maple.menu.upload_method.serialMethod.upload.protocol=maple_serial
+Maple.menu.upload_method.serialMethod.upload.tool=serial_upload
+
 
 ################################################################################
 # Serialx activation
@@ -409,6 +487,22 @@ Disco.menu.xserial.all.build.xSerial=-DALL_HWSERIAL
 Disco.menu.xserial.third=Enable first third (USART1 to 3 if available)
 Disco.menu.xserial.third.build.xSerial=-DFIRST_THIRD_HWSERIAL
 
+GenF103.menu.xserial.generic=Generic Serial
+GenF103.menu.xserial.none=No Serial
+GenF103.menu.xserial.none.build.xSerial=-DNO_HWSERIAL
+GenF103.menu.xserial.all=All (up to 10)
+GenF103.menu.xserial.all.build.xSerial=-DALL_HWSERIAL
+GenF103.menu.xserial.third=Enable first third (USART1 to 3 if available)
+GenF103.menu.xserial.third.build.xSerial=-DFIRST_THIRD_HWSERIAL
+
+Maple.menu.xserial.generic=Generic Serial
+Maple.menu.xserial.none=No Serial
+Maple.menu.xserial.none.build.xSerial=-DNO_HWSERIAL
+Maple.menu.xserial.all=All (up to 10)
+Maple.menu.xserial.all.build.xSerial=-DALL_HWSERIAL
+Maple.menu.xserial.third=Enable first third (USART1 to 3 if available)
+Maple.menu.xserial.third.build.xSerial=-DFIRST_THIRD_HWSERIAL
+
 # USB connectivity
 Nucleo_144.menu.usb.none=None
 Nucleo_144.menu.usb.HID=HID keyboard and mouse support (if available)
@@ -546,3 +640,59 @@ Disco.menu.opt.o3lto.build.flags.ldspecs=-flto
 Disco.menu.opt.ogstd=Debug (-g)
 Disco.menu.opt.ogstd.build.flags.optimize=-g -Og
 Disco.menu.opt.ogstd.build.flags.ldspecs=
+
+GenF103.menu.opt.osstd=Smallest (-Os default)
+GenF103.menu.opt.osstd.build.flags.optimize=-Os
+GenF103.menu.opt.osstd.build.flags.ldspecs=
+GenF103.menu.opt.oslto=Smallest (-Os) with LTO
+GenF103.menu.opt.oslto.build.flags.optimize=-Os -flto
+GenF103.menu.opt.oslto.build.flags.ldspecs=-flto
+GenF103.menu.opt.o1std=Fast (-O1)
+GenF103.menu.opt.o1std.build.flags.optimize=-O1
+GenF103.menu.opt.o1std.build.flags.ldspecs=
+GenF103.menu.opt.o1lto=Fast (-O1) with LTO
+GenF103.menu.opt.o1lto.build.flags.optimize=-O1 -flto
+GenF103.menu.opt.o1lto.build.flags.ldspecs=-flto
+GenF103.menu.opt.o2std=Faster (-O2)
+GenF103.menu.opt.o2std.build.flags.optimize=-O2
+GenF103.menu.opt.o2std.build.flags.ldspecs=
+GenF103.menu.opt.o2lto=Faster (-O2) with LTO
+GenF103.menu.opt.o2lto.build.flags.optimize=-O2 -flto
+GenF103.menu.opt.o2lto.build.flags.ldspecs=-flto
+GenF103.menu.opt.o3std=Fastest (-O3)
+GenF103.menu.opt.o3std.build.flags.optimize=-O3
+GenF103.menu.opt.o3std.build.flags.ldspecs=
+GenF103.menu.opt.o3lto=Fastest (-O3) with LTO
+GenF103.menu.opt.o3lto.build.flags.optimize=-O3 -flto
+GenF103.menu.opt.o3lto.build.flags.ldspecs=-flto
+GenF103.menu.opt.ogstd=Debug (-g)
+GenF103.menu.opt.ogstd.build.flags.optimize=-g -Og
+GenF103.menu.opt.ogstd.build.flags.ldspecs=
+
+Maple.menu.opt.osstd=Smallest (-Os default)
+Maple.menu.opt.osstd.build.flags.optimize=-Os
+Maple.menu.opt.osstd.build.flags.ldspecs=
+Maple.menu.opt.oslto=Smallest (-Os) with LTO
+Maple.menu.opt.oslto.build.flags.optimize=-Os -flto
+Maple.menu.opt.oslto.build.flags.ldspecs=-flto
+Maple.menu.opt.o1std=Fast (-O1)
+Maple.menu.opt.o1std.build.flags.optimize=-O1
+Maple.menu.opt.o1std.build.flags.ldspecs=
+Maple.menu.opt.o1lto=Fast (-O1) with LTO
+Maple.menu.opt.o1lto.build.flags.optimize=-O1 -flto
+Maple.menu.opt.o1lto.build.flags.ldspecs=-flto
+Maple.menu.opt.o2std=Faster (-O2)
+Maple.menu.opt.o2std.build.flags.optimize=-O2
+Maple.menu.opt.o2std.build.flags.ldspecs=
+Maple.menu.opt.o2lto=Faster (-O2) with LTO
+Maple.menu.opt.o2lto.build.flags.optimize=-O2 -flto
+Maple.menu.opt.o2lto.build.flags.ldspecs=-flto
+Maple.menu.opt.o3std=Fastest (-O3)
+Maple.menu.opt.o3std.build.flags.optimize=-O3
+Maple.menu.opt.o3std.build.flags.ldspecs=
+Maple.menu.opt.o3lto=Fastest (-O3) with LTO
+Maple.menu.opt.o3lto.build.flags.optimize=-O3 -flto
+Maple.menu.opt.o3lto.build.flags.ldspecs=-flto
+Maple.menu.opt.ogstd=Debug (-g)
+Maple.menu.opt.ogstd.build.flags.optimize=-g -Og
+Maple.menu.opt.ogstd.build.flags.ldspecs=
diff --git a/platform.txt b/platform.txt
index f8eb670413..4c596b104d 100644
--- a/platform.txt
+++ b/platform.txt
@@ -154,3 +154,17 @@ tools.stlink_upload.path.linux64={runtime.hardware.path}/tools/linux64
 tools.stlink_upload.upload.params.verbose=-d
 tools.stlink_upload.upload.params.quiet=
 tools.stlink_upload.upload.pattern="{path}/{cmd}" {serial.port.file} {upload.altID} {upload.usbID} "{build.path}/{build.project_name}.bin"
+
+# Serial upload for generic STM32
+# Note: Boot0 line needs to be high on board reset to enable it
+# at the end up the upload the program is automatically run, without the board being reset
+tools.serial_upload.cmd=serial_upload
+tools.serial_upload.cmd.windows=serial_upload.bat
+tools.serial_upload.cmd.macosx=serial_upload
+tools.serial_upload.path={runtime.hardware.path}/tools/win
+tools.serial_upload.path.macosx={runtime.hardware.path}/tools/macosx
+tools.serial_upload.path.linux={runtime.hardware.path}/tools/linux
+tools.serial_upload.path.linux64={runtime.hardware.path}/tools/linux64
+tools.serial_upload.upload.params.verbose=-d
+tools.serial_upload.upload.params.quiet=n
+tools.serial_upload.upload.pattern="{path}/{cmd}" {serial.port.file} {upload.altID} {upload.usbID} "{build.path}/{build.project_name}.bin"
diff --git a/variants/BLUEPILL_F103C8/PeripheralPins.c b/variants/BLUEPILL_F103C8/PeripheralPins.c
new file mode 100644
index 0000000000..2167aee240
--- /dev/null
+++ b/variants/BLUEPILL_F103C8/PeripheralPins.c
@@ -0,0 +1,245 @@
+/*
+ *******************************************************************************
+ * Copyright (c) 2018, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+#include "Arduino.h"
+#include "PeripheralPins.h"
+
+// =====
+// Note: Commented lines are alternative possibilities which are not used per default.
+//       If you change them, you will have to know what you do
+// =====
+
+
+//*** ADC ***
+
+#ifdef HAL_ADC_MODULE_ENABLED
+const PinMap PinMap_ADC[] = {
+    {PA_0,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 0, 0)}, // ADC1_IN0
+//  {PA_0,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 0, 0)}, // ADC2_IN0
+    {PA_1,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 1, 0)}, // ADC1_IN1
+//  {PA_1,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 1, 0)}, // ADC2_IN1
+    {PA_2,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 2, 0)}, // ADC1_IN2
+//  {PA_2,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 2, 0)}, // ADC2_IN2
+    {PA_3,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 3, 0)}, // ADC1_IN3
+//  {PA_3,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 3, 0)}, // ADC2_IN3
+    {PA_4,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 4, 0)}, // ADC1_IN4
+//  {PA_4,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 4, 0)}, // ADC2_IN4
+    {PA_5,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 5, 0)}, // ADC1_IN5
+//  {PA_5,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 5, 0)}, // ADC2_IN5
+    {PA_6,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 6, 0)}, // ADC1_IN6
+//  {PA_6,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 6, 0)}, // ADC2_IN6
+    {PA_7,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 7, 0)}, // ADC1_IN7
+//  {PA_7,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 7, 0)}, // ADC2_IN7
+    {PB_0,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 8, 0)}, // ADC1_IN8
+//  {PB_0,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 8, 0)}, // ADC2_IN8
+    {PB_1,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 9, 0)}, // ADC1_IN9
+//  {PB_1,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 9, 0)}, // ADC2_IN9
+    {NC,    NP,    0}
+};
+#endif
+
+//*** DAC ***
+
+//*** No DAC ***
+
+//*** I2C ***
+
+#ifdef HAL_I2C_MODULE_ENABLED
+const PinMap PinMap_I2C_SDA[] = {
+    {PB_7,  I2C1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_NONE)},
+    {PB_9,  I2C1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_I2C1_ENABLE)},
+    {PB_11, I2C2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_I2C_MODULE_ENABLED
+const PinMap PinMap_I2C_SCL[] = {
+    {PB_6,  I2C1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_NONE)},
+    {PB_8,  I2C1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_I2C1_ENABLE)},
+    {PB_10, I2C2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+//*** PWM ***
+
+#ifdef HAL_TIM_MODULE_ENABLED
+const PinMap PinMap_PWM[] = {
+    {PA_0,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 0)},  // TIM2_CH1
+//  {PA_0,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_2, 1, 0)},  // TIM2_CH1
+    {PA_1,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 0)},  // TIM2_CH2
+//  {PA_1,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_2, 2, 0)},  // TIM2_CH2
+    {PA_2,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 0)},  // TIM2_CH3
+//  {PA_2,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_1, 3, 0)},  // TIM2_CH3
+    {PA_3,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 4, 0)},  // TIM2_CH4
+//  {PA_3,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_1, 4, 0)},  // TIM2_CH4
+    {PA_6,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 0)},  // TIM3_CH1
+//  {PA_7,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 1, 1)},  // TIM1_CH1N
+    {PA_7,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 0)},  // TIM3_CH2
+    {PA_8,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 0)},  // TIM1_CH1
+//  {PA_8,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 1, 0)},  // TIM1_CH1
+    {PA_9,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 0)},  // TIM1_CH2
+//  {PA_9,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 2, 0)},  // TIM1_CH2
+    {PA_10, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 0)},  // TIM1_CH3
+//  {PA_10, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 3, 0)},  // TIM1_CH3
+    {PA_11, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 4, 0)},  // TIM1_CH4
+//  {PA_11, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 4, 0)},  // TIM1_CH4
+//  {PA_15, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_1, 1, 0)},  // TIM2_CH1
+    {PA_15, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_ENABLE, 1, 0)},  // TIM2_CH1
+//  {PB_0,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 2, 1)},  // TIM1_CH2N
+    {PB_0,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 0)},  // TIM3_CH3
+//  {PB_0,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM3_PARTIAL, 3, 0)},  // TIM3_CH3
+//  {PB_1,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 3, 1)},  // TIM1_CH3N
+    {PB_1,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 4, 0)},  // TIM3_CH4
+//  {PB_1,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM3_PARTIAL, 4, 0)},  // TIM3_CH4
+//  {PB_3,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_1, 2, 0)},  // TIM2_CH2
+    {PB_3,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_ENABLE, 2, 0)},  // TIM2_CH2
+    {PB_4,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM3_PARTIAL, 1, 0)},  // TIM3_CH1
+    {PB_5,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM3_PARTIAL, 2, 0)},  // TIM3_CH2
+    {PB_6,  TIM4,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 0)},  // TIM4_CH1
+    {PB_7,  TIM4,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 0)},  // TIM4_CH2
+    {PB_8,  TIM4,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 0)},  // TIM4_CH3
+    {PB_9,  TIM4,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 4, 0)},  // TIM4_CH4
+//  {PB_10, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_2, 3, 0)},  // TIM2_CH3
+    {PB_10, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_ENABLE, 3, 0)},  // TIM2_CH3
+//  {PB_11, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_2, 4, 0)},  // TIM2_CH4
+    {PB_11, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_ENABLE, 4, 0)},  // TIM2_CH4
+    {PB_13, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 1)},  // TIM1_CH1N
+    {PB_14, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 1)},  // TIM1_CH2N
+    {PB_15, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 1)},  // TIM1_CH3N
+    {NC,    NP,    0}
+};
+#endif
+
+//*** SERIAL ***
+
+#ifdef HAL_UART_MODULE_ENABLED
+const PinMap PinMap_UART_TX[] = {
+    {PA_2,  USART2,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PA_9,  USART1,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_6,  USART1,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_USART1_ENABLE)},
+    {PB_10, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_UART_MODULE_ENABLED
+const PinMap PinMap_UART_RX[] = {
+    {PA_3,  USART2,  STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLUP, AFIO_NONE)},
+    {PA_10, USART1,  STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLUP, AFIO_NONE)},
+    {PB_7,  USART1,  STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLUP, AFIO_USART1_ENABLE)},
+    {PB_11, USART3,  STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_UART_MODULE_ENABLED
+const PinMap PinMap_UART_RTS[] = {
+    {PA_1,  USART2,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PA_12, USART1,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_14, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+//  {PB_14, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_USART3_PARTIAL)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_UART_MODULE_ENABLED
+const PinMap PinMap_UART_CTS[] = {
+    {PA_0,  USART2,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PA_11, USART1,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_13, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+//  {PB_13, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_USART3_PARTIAL)},
+    {NC,    NP,    0}
+};
+#endif
+
+//*** SPI ***
+
+#ifdef HAL_SPI_MODULE_ENABLED
+const PinMap PinMap_SPI_MOSI[] = {
+    {PA_7,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_5,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_SPI1_ENABLE)},
+    {PB_15, SPI2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_SPI_MODULE_ENABLED
+const PinMap PinMap_SPI_MISO[] = {
+    {PA_6,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_4,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_SPI1_ENABLE)},
+    {PB_14, SPI2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_SPI_MODULE_ENABLED
+const PinMap PinMap_SPI_SCLK[] = {
+    {PA_5,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_3,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_SPI1_ENABLE)},
+    {PB_13, SPI2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_SPI_MODULE_ENABLED
+const PinMap PinMap_SPI_SSEL[] = {
+    {PA_4,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PA_15, SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_SPI1_ENABLE)},
+    {PB_12, SPI2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+//*** CAN ***
+
+#ifdef HAL_CAN_MODULE_ENABLED
+const PinMap PinMap_CAN_RD[] = {
+    {PA_11, CAN1, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, AFIO_NONE)},
+    {PB_8,  CAN1, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, AFIO_CAN1_2)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_CAN_MODULE_ENABLED
+const PinMap PinMap_CAN_TD[] = {
+    {PA_12, CAN1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, AFIO_NONE)},
+    {PB_9,  CAN1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, AFIO_CAN1_2)},
+    {NC,    NP,    0}
+};
+#endif
+
+//*** ETHERNET ***
+
+//*** No Ethernet ***
+
+//*** QUADSPI ***
+
+//*** No QUADSPI ***
diff --git a/variants/BLUEPILL_F103C8/ldscript.ld b/variants/BLUEPILL_F103C8/ldscript.ld
new file mode 100644
index 0000000000..17a7d7f7dc
--- /dev/null
+++ b/variants/BLUEPILL_F103C8/ldscript.ld
@@ -0,0 +1,169 @@
+/*
+*****************************************************************************
+**
+
+**  File        : LinkerScript.ld
+**
+**  Abstract    : Linker script for STM32F103C8Tx Device with
+**                64KByte FLASH, 20KByte RAM
+**
+**                Set heap size, stack size and stack location according
+**                to application requirements.
+**
+**                Set memory bank area and size if external memory is used.
+**
+**  Target      : STMicroelectronics STM32
+**
+**
+**  Distribution: The file is distributed as is, without any warranty
+**                of any kind.
+**
+**  (c)Copyright Ac6.
+**  You may use this file as-is or modify it according to the needs of your
+**  project. Distribution of this file (unmodified or modified) is not
+**  permitted. Ac6 permit registered System Workbench for MCU users the
+**  rights to distribute the assembled, compiled & linked contents of this
+**  file as part of an application binary file, provided that it is built
+**  using the System Workbench for MCU toolchain.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20005000;    /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 20K
+FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 64K
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text ALIGN(4):
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data goes into FLASH */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+  .ARM : {
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+  } >FLASH
+
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >FLASH
+  .init_array :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >FLASH
+  .fini_array :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+  
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+  
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+
diff --git a/variants/BLUEPILL_F103C8/ldscript_cb.ld b/variants/BLUEPILL_F103C8/ldscript_cb.ld
new file mode 100644
index 0000000000..8b7f95f543
--- /dev/null
+++ b/variants/BLUEPILL_F103C8/ldscript_cb.ld
@@ -0,0 +1,169 @@
+/*
+*****************************************************************************
+**
+
+**  File        : LinkerScript.ld
+**
+**  Abstract    : Linker script for STM32F103CBTx Device with
+**                128KByte FLASH, 20KByte RAM
+**
+**                Set heap size, stack size and stack location according
+**                to application requirements.
+**
+**                Set memory bank area and size if external memory is used.
+**
+**  Target      : STMicroelectronics STM32
+**
+**
+**  Distribution: The file is distributed as is, without any warranty
+**                of any kind.
+**
+**  (c)Copyright Ac6.
+**  You may use this file as-is or modify it according to the needs of your
+**  project. Distribution of this file (unmodified or modified) is not
+**  permitted. Ac6 permit registered System Workbench for MCU users the
+**  rights to distribute the assembled, compiled & linked contents of this
+**  file as part of an application binary file, provided that it is built
+**  using the System Workbench for MCU toolchain.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20005000;    /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 20K
+FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 128K
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text ALIGN(4):
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data goes into FLASH */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+  .ARM : {
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+  } >FLASH
+
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >FLASH
+  .init_array :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >FLASH
+  .fini_array :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+  
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+  
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+
diff --git a/variants/BLUEPILL_F103C8/stm32f1xx_hal_conf.h b/variants/BLUEPILL_F103C8/stm32f1xx_hal_conf.h
new file mode 100644
index 0000000000..6947df27ac
--- /dev/null
+++ b/variants/BLUEPILL_F103C8/stm32f1xx_hal_conf.h
@@ -0,0 +1,382 @@
+/**
+  ******************************************************************************
+  * @file    stm32f1xx_hal_conf.h
+  * @author  MCD Application Team
+  * @version V1.1.1
+  * @date    12-May-2017
+  * @brief   HAL configuration template file.
+  *          This file should be copied to the application folder and renamed
+  *          to stm32f1xx_hal_conf.h.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F1xx_HAL_CONF_H
+#define __STM32F1xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+  * @brief This is the list of modules to be used in the HAL driver
+  */
+#define HAL_MODULE_ENABLED
+#define HAL_ADC_MODULE_ENABLED
+/*#define HAL_CAN_MODULE_ENABLED*/
+/*#define HAL_CEC_MODULE_ENABLED*/
+#define HAL_CORTEX_MODULE_ENABLED
+/*#define HAL_CRC_MODULE_ENABLED*/
+/*#define HAL_DAC_MODULE_ENABLED*/
+#define HAL_DMA_MODULE_ENABLED
+/*#define HAL_ETH_MODULE_ENABLED*/
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+/*#define HAL_HCD_MODULE_ENABLED*/
+#define HAL_I2C_MODULE_ENABLED
+/*#define HAL_I2S_MODULE_ENABLED*/
+/*#define HAL_IRDA_MODULE_ENABLED*/
+/*#define HAL_IWDG_MODULE_ENABLED*/
+/*#define HAL_NAND_MODULE_ENABLED*/
+/*#define HAL_NOR_MODULE_ENABLED*/
+/*#define HAL_PCCARD_MODULE_ENABLED*/
+/*#define HAL_PCD_MODULE_ENABLED*/
+/*#define HAL_PWR_MODULE_ENABLED*/
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_RTC_MODULE_ENABLED
+/*#define HAL_SD_MODULE_ENABLED*/
+/*#define HAL_SMARTCARD_MODULE_ENABLED*/
+#define HAL_SPI_MODULE_ENABLED
+/*#define HAL_SRAM_MODULE_ENABLED*/
+#define HAL_TIM_MODULE_ENABLED
+#define HAL_UART_MODULE_ENABLED
+/*#define HAL_USART_MODULE_ENABLED*/
+/*#define HAL_WWDG_MODULE_ENABLED*/
+#define HAL_MMC_MODULE_ENABLED
+
+/* ########################## Oscillator Values adaptation ####################*/
+/**
+  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSE is used as system clock source, directly or through the PLL).
+  */
+#if !defined  (HSE_VALUE)
+#if defined(USE_STM3210C_EVAL)
+  #define HSE_VALUE    25000000U /*!< Value of the External oscillator in Hz */
+#else
+  #define HSE_VALUE    8000000U /*!< Value of the External oscillator in Hz */
+#endif
+#endif /* HSE_VALUE */
+
+#if !defined  (HSE_STARTUP_TIMEOUT)
+  #define HSE_STARTUP_TIMEOUT    100U      /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+  * @brief Internal High Speed oscillator (HSI) value.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSI is used as system clock source, directly or through the PLL).
+  */
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE              8000000U  /*!< Value of the Internal oscillator in Hz */
+#endif /* HSI_VALUE */
+
+/**
+  * @brief Internal Low Speed oscillator (LSI) value.
+  */
+#if !defined  (LSI_VALUE) 
+ #define LSI_VALUE               40000U    /*!< LSI Typical Value in Hz */
+#endif /* LSI_VALUE */                     /*!< Value of the Internal Low Speed oscillator in Hz
+                                                The real value may vary depending on the variations
+                                                in voltage and temperature. */
+/**
+  * @brief External Low Speed oscillator (LSE) value.
+  *        This value is used by the UART, RTC HAL module to compute the system frequency
+  */
+#if !defined  (LSE_VALUE)
+ #define LSE_VALUE               32768U    /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_VALUE */
+
+#if !defined  (LSE_STARTUP_TIMEOUT)
+  #define LSE_STARTUP_TIMEOUT    5000U     /*!< Time out for LSE start up, in ms */
+#endif /* LSE_STARTUP_TIMEOUT */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+   ===  you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+  * @brief This is the HAL system configuration section
+  */
+#define  VDD_VALUE                    3300U /*!< Value of VDD in mv */
+#define  TICK_INT_PRIORITY            0x0FU /*!< tick interrupt priority */
+#define  USE_RTOS                     0U
+#define  PREFETCH_ENABLE              1U
+
+/* ########################## Assert Selection ############################## */
+/**
+  * @brief Uncomment the line below to expanse the "assert_param" macro in the
+  *        HAL drivers code
+  */
+/* #define USE_FULL_ASSERT    1U */
+
+/* ################## Ethernet peripheral configuration ##################### */
+
+/* Section 1 : Ethernet peripheral configuration */
+
+/* MAC ADDRESS: MAC_ADDR0:MAC_ADDR1:MAC_ADDR2:MAC_ADDR3:MAC_ADDR4:MAC_ADDR5 */
+#define MAC_ADDR0   2U
+#define MAC_ADDR1   0U
+#define MAC_ADDR2   0U
+#define MAC_ADDR3   0U
+#define MAC_ADDR4   0U
+#define MAC_ADDR5   0U
+
+/* Definition of the Ethernet driver buffers size and count */
+#define ETH_RX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for receive               */
+#define ETH_TX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for transmit              */
+#define ETH_RXBUFNB                    8U                  /* 8 Rx buffers of size ETH_RX_BUF_SIZE  */
+#define ETH_TXBUFNB                    4U                  /* 4 Tx buffers of size ETH_TX_BUF_SIZE  */
+
+/* Section 2: PHY configuration section */
+
+/* DP83848 PHY Address*/
+#define DP83848_PHY_ADDRESS             0x01U
+/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/
+#define PHY_RESET_DELAY                 0x000000FFU
+/* PHY Configuration delay */
+#define PHY_CONFIG_DELAY                0x00000FFFU
+
+#define PHY_READ_TO                     0x0000FFFFU
+#define PHY_WRITE_TO                    0x0000FFFFU
+
+/* Section 3: Common PHY Registers */
+
+#define PHY_BCR                         ((uint16_t)0x0000)  /*!< Transceiver Basic Control Register   */
+#define PHY_BSR                         ((uint16_t)0x0001)  /*!< Transceiver Basic Status Register    */
+
+#define PHY_RESET                       ((uint16_t)0x8000)  /*!< PHY Reset */
+#define PHY_LOOPBACK                    ((uint16_t)0x4000)  /*!< Select loop-back mode */
+#define PHY_FULLDUPLEX_100M             ((uint16_t)0x2100)  /*!< Set the full-duplex mode at 100 Mb/s */
+#define PHY_HALFDUPLEX_100M             ((uint16_t)0x2000)  /*!< Set the half-duplex mode at 100 Mb/s */
+#define PHY_FULLDUPLEX_10M              ((uint16_t)0x0100)  /*!< Set the full-duplex mode at 10 Mb/s  */
+#define PHY_HALFDUPLEX_10M              ((uint16_t)0x0000)  /*!< Set the half-duplex mode at 10 Mb/s  */
+#define PHY_AUTONEGOTIATION             ((uint16_t)0x1000)  /*!< Enable auto-negotiation function     */
+#define PHY_RESTART_AUTONEGOTIATION     ((uint16_t)0x0200)  /*!< Restart auto-negotiation function    */
+#define PHY_POWERDOWN                   ((uint16_t)0x0800)  /*!< Select the power down mode           */
+#define PHY_ISOLATE                     ((uint16_t)0x0400)  /*!< Isolate PHY from MII                 */
+
+#define PHY_AUTONEGO_COMPLETE           ((uint16_t)0x0020)  /*!< Auto-Negotiation process completed   */
+#define PHY_LINKED_STATUS               ((uint16_t)0x0004)  /*!< Valid link established               */
+#define PHY_JABBER_DETECTION            ((uint16_t)0x0002)  /*!< Jabber condition detected            */
+
+/* Section 4: Extended PHY Registers */
+
+#define PHY_SR                          ((uint16_t)0x0010)  /*!< PHY status register Offset                      */
+#define PHY_MICR                        ((uint16_t)0x0011)  /*!< MII Interrupt Control Register                  */
+#define PHY_MISR                        ((uint16_t)0x0012)  /*!< MII Interrupt Status and Misc. Control Register */
+
+#define PHY_LINK_STATUS                 ((uint16_t)0x0001)  /*!< PHY Link mask                                   */
+#define PHY_SPEED_STATUS                ((uint16_t)0x0002)  /*!< PHY Speed mask                                  */
+#define PHY_DUPLEX_STATUS               ((uint16_t)0x0004)  /*!< PHY Duplex mask                                 */
+
+#define PHY_MICR_INT_EN                 ((uint16_t)0x0002)  /*!< PHY Enable interrupts                           */
+#define PHY_MICR_INT_OE                 ((uint16_t)0x0001)  /*!< PHY Enable output interrupt events              */
+
+#define PHY_MISR_LINK_INT_EN            ((uint16_t)0x0020)  /*!< Enable Interrupt on change of link status       */
+#define PHY_LINK_INTERRUPT              ((uint16_t)0x2000)  /*!< PHY link status interrupt mask                  */
+
+/* ################## SPI peripheral configuration ########################## */
+
+/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
+* Activated: CRC code is present inside driver
+* Deactivated: CRC code cleaned from driver
+*/
+
+#define USE_SPI_CRC                     1U
+
+/* Includes ------------------------------------------------------------------*/
+/**
+  * @brief Include module's header file
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+ #include "stm32f1xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+ #include "stm32f1xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+  #include "stm32f1xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_ETH_MODULE_ENABLED
+  #include "stm32f1xx_hal_eth.h"
+#endif /* HAL_ETH_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+ #include "stm32f1xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CEC_MODULE_ENABLED
+ #include "stm32f1xx_hal_cec.h"
+#endif /* HAL_CEC_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+ #include "stm32f1xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+ #include "stm32f1xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+ #include "stm32f1xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+ #include "stm32f1xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+ #include "stm32f1xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_SRAM_MODULE_ENABLED
+ #include "stm32f1xx_hal_sram.h"
+#endif /* HAL_SRAM_MODULE_ENABLED */
+
+#ifdef HAL_NOR_MODULE_ENABLED
+ #include "stm32f1xx_hal_nor.h"
+#endif /* HAL_NOR_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f1xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f1xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f1xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f1xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f1xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_PCCARD_MODULE_ENABLED
+ #include "stm32f1xx_hal_pccard.h"
+#endif /* HAL_PCCARD_MODULE_ENABLED */
+
+#ifdef HAL_SD_MODULE_ENABLED
+ #include "stm32f1xx_hal_sd.h"
+#endif /* HAL_SD_MODULE_ENABLED */
+
+#ifdef HAL_NAND_MODULE_ENABLED
+ #include "stm32f1xx_hal_nand.h"
+#endif /* HAL_NAND_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f1xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f1xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f1xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f1xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f1xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f1xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f1xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32f1xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_HCD_MODULE_ENABLED
+ #include "stm32f1xx_hal_hcd.h"
+#endif /* HAL_HCD_MODULE_ENABLED */
+
+#ifdef HAL_MMC_MODULE_ENABLED
+ #include "stm32f1xx_hal_mmc.h"
+#endif /* HAL_MMC_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  The assert_param macro is used for function's parameters check.
+  * @param  expr: If expr is false, it calls assert_failed function
+  *         which reports the name of the source file and the source
+  *         line number of the call that failed.
+  *         If expr is true, it returns no value.
+  * @retval None
+  */
+  #define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+  void assert_failed(uint8_t* file, uint32_t line);
+#else
+  #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F1xx_HAL_CONF_H */
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/variants/BLUEPILL_F103C8/variant.cpp b/variants/BLUEPILL_F103C8/variant.cpp
new file mode 100644
index 0000000000..48c9fa6557
--- /dev/null
+++ b/variants/BLUEPILL_F103C8/variant.cpp
@@ -0,0 +1,157 @@
+/*
+ *******************************************************************************
+ * Copyright (c) 2018, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+#include "variant.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Pin number
+const PinName digitalPin[] = {
+/* USB connector on the top, MCU side */
+/* Left Side */
+  PB_9,  //D0
+  PB_8,  //D1
+  PB_7,  //D2
+  PB_6,  //D3
+  PB_5,  //D4
+  PB_4,  //D5
+  PB_3,  //D6
+  PA_15, //D7
+  PA_12, //D8 - USB DP
+  PA_11, //D9 - USB DM
+  PA_10, //D10
+  PA_9,  //D11
+  PA_8,  //D12
+  PB_15, //D13
+  PB_14, //D14
+  PB_13, //D15
+  PB_12, //D16
+/* Right side */
+  PC_13, //D17 - LED
+  PC_14, //D18
+  PC_15, //D19
+  PA_0,  //D20/A0
+  PA_1,  //D21/A1
+  PA_2,  //D22/A2
+  PA_3,  //D23/A3
+  PA_4,  //D24/A4
+  PA_5,  //D25/A5
+  PA_6,  //D26/A6
+  PA_7,  //D27/A7
+  PB_0,  //D28/A8
+  PB_1,  //D29/A9
+  PB_10, //D30
+  PB_11, //D31
+  PB_2,  //D32 - BOOT1
+  PA_13, //D33 - SWDI0
+  PA_14, //D34 - SWCLK
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+// ----------------------------------------------------------------------------
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+  * @brief  System Clock Configuration
+  *         The system Clock is configured as follow :
+  *            System Clock source            = PLL (HSE)
+  *            SYSCLK(Hz)                     = 72000000
+  *            HCLK(Hz)                       = 72000000
+  *            AHB Prescaler                  = 1
+  *            APB1 Prescaler                 = 2
+  *            APB2 Prescaler                 = 1
+  *            PLL_Source                     = HSE
+  *            PLL_Mul                        = 9
+  *            Flash Latency(WS)              = 2
+  *            ADC Prescaler                  = 6
+  *            USB Prescaler                  = 1.5
+  * @param  None
+  * @retval None
+  */
+WEAK void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;
+  RCC_PeriphCLKInitTypeDef PeriphClkInit;
+
+  /* Initializes the CPU, AHB and APB busses clocks */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
+  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+  {
+    while(1);
+  }
+
+  /* Initializes the CPU, AHB and APB busses clocks */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
+  {
+    while(1);
+  }
+
+  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC|RCC_PERIPHCLK_USB;
+  PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
+  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
+  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
+  {
+    while(1);
+  }
+
+  /* Configure the Systick interrupt time */
+  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
+
+  /* Configure the Systick */
+  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
+
+  /* SysTick_IRQn interrupt configuration */
+  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/variants/BLUEPILL_F103C8/variant.h b/variants/BLUEPILL_F103C8/variant.h
new file mode 100644
index 0000000000..9abe752a0c
--- /dev/null
+++ b/variants/BLUEPILL_F103C8/variant.h
@@ -0,0 +1,151 @@
+/*
+ *******************************************************************************
+ * Copyright (c) 2018, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+#ifndef _VARIANT_ARDUINO_STM32_
+#define _VARIANT_ARDUINO_STM32_
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+#include "PeripheralPins.h"
+
+#ifdef __cplusplus
+extern "C"{
+#endif // __cplusplus
+
+/*----------------------------------------------------------------------------
+ *        Pins
+ *----------------------------------------------------------------------------*/
+extern const PinName digitalPin[];
+
+enum {
+// USB connector on the top, MCU side
+// Left Side
+  PB9,  //D0
+  PB8,  //D1
+  PB7,  //D2
+  PB6,  //D3
+  PB5,  //D4
+  PB4,  //D5
+  PB3,  //D6
+  PA15, //D7
+  PA12, //D8 - USB DP
+  PA11, //D9 - USB DM
+  PA10, //D10
+  PA9,  //D11
+  PA8,  //D12
+  PB15, //D13
+  PB14, //D14
+  PB13, //D15
+  PB12, //D16
+// Right side
+  PC13, //D17 - LED
+  PC14, //D18
+  PC15, //D19
+  PA0,  //D20/A0
+  PA1,  //D21/A1
+  PA2,  //D22/A2
+  PA3,  //D23/A3
+  PA4,  //D24/A4
+  PA5,  //D25/A5
+  PA6,  //D26/A6
+  PA7,  //D27/A7
+  PB0,  //D28/A8
+  PB1,  //D29/A9
+  PB10, //D30
+  PB11, //D31
+// Other
+  PB2,  //D32 - BOOT1
+  PA13, //D33 - SWDI0
+  PA14, //D34 - SWCLK
+  PEND
+};
+
+// This must be a literal with the same value as PEND
+#define NUM_DIGITAL_PINS        35
+// This must be a literal with a value less than or equal to to MAX_ANALOG_INPUTS
+#define NUM_ANALOG_INPUTS       10
+#define NUM_ANALOG_FIRST        20
+
+// On-board LED pin number
+#define LED_BUILTIN             PC13
+#define LED_GREEN               LED_BUILTIN
+
+// SPI Definitions
+#define PIN_SPI_SS              PA4
+#define PIN_SPI_MOSI            PA7
+#define PIN_SPI_MISO            PA6
+#define PIN_SPI_SCK             PA5
+
+// I2C Definitions
+#define PIN_WIRE_SDA            PB7
+#define PIN_WIRE_SCL            PB6
+
+// Timer Definitions
+// Do not use timer used by PWM pins when possible. See PinMap_PWM.
+#define TIMER_TONE              TIM4
+
+// Do not use basic timer: OC is required
+#define TIMER_SERVO             TIM2  //TODO: advanced-control timers don't work
+
+// UART Definitions
+#define SERIAL_UART_INSTANCE    1
+// Default pin used for 'Serial' instance
+// Mandatory for Firmata
+#define PIN_SERIAL_RX           PA10
+#define PIN_SERIAL_TX           PA9
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+/*----------------------------------------------------------------------------
+ *        Arduino objects - C++ only
+ *----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
+//                            pins are NOT connected to anything by default.
+#define SERIAL_PORT_MONITOR     Serial
+#define SERIAL_PORT_HARDWARE    Serial1
+#endif
+
+#endif /* _VARIANT_ARDUINO_STM32_ */
diff --git a/variants/MAPLEMINI_F103CB/PeripheralPins.c b/variants/MAPLEMINI_F103CB/PeripheralPins.c
new file mode 100644
index 0000000000..2167aee240
--- /dev/null
+++ b/variants/MAPLEMINI_F103CB/PeripheralPins.c
@@ -0,0 +1,245 @@
+/*
+ *******************************************************************************
+ * Copyright (c) 2018, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+#include "Arduino.h"
+#include "PeripheralPins.h"
+
+// =====
+// Note: Commented lines are alternative possibilities which are not used per default.
+//       If you change them, you will have to know what you do
+// =====
+
+
+//*** ADC ***
+
+#ifdef HAL_ADC_MODULE_ENABLED
+const PinMap PinMap_ADC[] = {
+    {PA_0,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 0, 0)}, // ADC1_IN0
+//  {PA_0,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 0, 0)}, // ADC2_IN0
+    {PA_1,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 1, 0)}, // ADC1_IN1
+//  {PA_1,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 1, 0)}, // ADC2_IN1
+    {PA_2,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 2, 0)}, // ADC1_IN2
+//  {PA_2,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 2, 0)}, // ADC2_IN2
+    {PA_3,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 3, 0)}, // ADC1_IN3
+//  {PA_3,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 3, 0)}, // ADC2_IN3
+    {PA_4,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 4, 0)}, // ADC1_IN4
+//  {PA_4,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 4, 0)}, // ADC2_IN4
+    {PA_5,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 5, 0)}, // ADC1_IN5
+//  {PA_5,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 5, 0)}, // ADC2_IN5
+    {PA_6,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 6, 0)}, // ADC1_IN6
+//  {PA_6,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 6, 0)}, // ADC2_IN6
+    {PA_7,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 7, 0)}, // ADC1_IN7
+//  {PA_7,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 7, 0)}, // ADC2_IN7
+    {PB_0,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 8, 0)}, // ADC1_IN8
+//  {PB_0,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 8, 0)}, // ADC2_IN8
+    {PB_1,  ADC1,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 9, 0)}, // ADC1_IN9
+//  {PB_1,   ADC2,  STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 9, 0)}, // ADC2_IN9
+    {NC,    NP,    0}
+};
+#endif
+
+//*** DAC ***
+
+//*** No DAC ***
+
+//*** I2C ***
+
+#ifdef HAL_I2C_MODULE_ENABLED
+const PinMap PinMap_I2C_SDA[] = {
+    {PB_7,  I2C1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_NONE)},
+    {PB_9,  I2C1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_I2C1_ENABLE)},
+    {PB_11, I2C2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_I2C_MODULE_ENABLED
+const PinMap PinMap_I2C_SCL[] = {
+    {PB_6,  I2C1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_NONE)},
+    {PB_8,  I2C1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_I2C1_ENABLE)},
+    {PB_10, I2C2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+//*** PWM ***
+
+#ifdef HAL_TIM_MODULE_ENABLED
+const PinMap PinMap_PWM[] = {
+    {PA_0,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 0)},  // TIM2_CH1
+//  {PA_0,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_2, 1, 0)},  // TIM2_CH1
+    {PA_1,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 0)},  // TIM2_CH2
+//  {PA_1,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_2, 2, 0)},  // TIM2_CH2
+    {PA_2,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 0)},  // TIM2_CH3
+//  {PA_2,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_1, 3, 0)},  // TIM2_CH3
+    {PA_3,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 4, 0)},  // TIM2_CH4
+//  {PA_3,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_1, 4, 0)},  // TIM2_CH4
+    {PA_6,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 0)},  // TIM3_CH1
+//  {PA_7,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 1, 1)},  // TIM1_CH1N
+    {PA_7,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 0)},  // TIM3_CH2
+    {PA_8,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 0)},  // TIM1_CH1
+//  {PA_8,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 1, 0)},  // TIM1_CH1
+    {PA_9,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 0)},  // TIM1_CH2
+//  {PA_9,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 2, 0)},  // TIM1_CH2
+    {PA_10, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 0)},  // TIM1_CH3
+//  {PA_10, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 3, 0)},  // TIM1_CH3
+    {PA_11, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 4, 0)},  // TIM1_CH4
+//  {PA_11, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 4, 0)},  // TIM1_CH4
+//  {PA_15, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_1, 1, 0)},  // TIM2_CH1
+    {PA_15, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_ENABLE, 1, 0)},  // TIM2_CH1
+//  {PB_0,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 2, 1)},  // TIM1_CH2N
+    {PB_0,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 0)},  // TIM3_CH3
+//  {PB_0,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM3_PARTIAL, 3, 0)},  // TIM3_CH3
+//  {PB_1,  TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM1_PARTIAL, 3, 1)},  // TIM1_CH3N
+    {PB_1,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 4, 0)},  // TIM3_CH4
+//  {PB_1,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM3_PARTIAL, 4, 0)},  // TIM3_CH4
+//  {PB_3,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_1, 2, 0)},  // TIM2_CH2
+    {PB_3,  TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_ENABLE, 2, 0)},  // TIM2_CH2
+    {PB_4,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM3_PARTIAL, 1, 0)},  // TIM3_CH1
+    {PB_5,  TIM3,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM3_PARTIAL, 2, 0)},  // TIM3_CH2
+    {PB_6,  TIM4,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 0)},  // TIM4_CH1
+    {PB_7,  TIM4,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 0)},  // TIM4_CH2
+    {PB_8,  TIM4,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 0)},  // TIM4_CH3
+    {PB_9,  TIM4,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 4, 0)},  // TIM4_CH4
+//  {PB_10, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_2, 3, 0)},  // TIM2_CH3
+    {PB_10, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_ENABLE, 3, 0)},  // TIM2_CH3
+//  {PB_11, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_PARTIAL_2, 4, 0)},  // TIM2_CH4
+    {PB_11, TIM2,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_TIM2_ENABLE, 4, 0)},  // TIM2_CH4
+    {PB_13, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 1, 1)},  // TIM1_CH1N
+    {PB_14, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 2, 1)},  // TIM1_CH2N
+    {PB_15, TIM1,   STM_PIN_DATA_EXT(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE, 3, 1)},  // TIM1_CH3N
+    {NC,    NP,    0}
+};
+#endif
+
+//*** SERIAL ***
+
+#ifdef HAL_UART_MODULE_ENABLED
+const PinMap PinMap_UART_TX[] = {
+    {PA_2,  USART2,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PA_9,  USART1,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_6,  USART1,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_USART1_ENABLE)},
+    {PB_10, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_UART_MODULE_ENABLED
+const PinMap PinMap_UART_RX[] = {
+    {PA_3,  USART2,  STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLUP, AFIO_NONE)},
+    {PA_10, USART1,  STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLUP, AFIO_NONE)},
+    {PB_7,  USART1,  STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLUP, AFIO_USART1_ENABLE)},
+    {PB_11, USART3,  STM_PIN_DATA(STM_MODE_INPUT, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_UART_MODULE_ENABLED
+const PinMap PinMap_UART_RTS[] = {
+    {PA_1,  USART2,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PA_12, USART1,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_14, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+//  {PB_14, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_USART3_PARTIAL)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_UART_MODULE_ENABLED
+const PinMap PinMap_UART_CTS[] = {
+    {PA_0,  USART2,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PA_11, USART1,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_13, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+//  {PB_13, USART3,  STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_USART3_PARTIAL)},
+    {NC,    NP,    0}
+};
+#endif
+
+//*** SPI ***
+
+#ifdef HAL_SPI_MODULE_ENABLED
+const PinMap PinMap_SPI_MOSI[] = {
+    {PA_7,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_5,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_SPI1_ENABLE)},
+    {PB_15, SPI2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_SPI_MODULE_ENABLED
+const PinMap PinMap_SPI_MISO[] = {
+    {PA_6,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_4,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_SPI1_ENABLE)},
+    {PB_14, SPI2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_SPI_MODULE_ENABLED
+const PinMap PinMap_SPI_SCLK[] = {
+    {PA_5,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PB_3,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_SPI1_ENABLE)},
+    {PB_13, SPI2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_SPI_MODULE_ENABLED
+const PinMap PinMap_SPI_SSEL[] = {
+    {PA_4,  SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {PA_15, SPI1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_SPI1_ENABLE)},
+    {PB_12, SPI2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, AFIO_NONE)},
+    {NC,    NP,    0}
+};
+#endif
+
+//*** CAN ***
+
+#ifdef HAL_CAN_MODULE_ENABLED
+const PinMap PinMap_CAN_RD[] = {
+    {PA_11, CAN1, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, AFIO_NONE)},
+    {PB_8,  CAN1, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, AFIO_CAN1_2)},
+    {NC,    NP,    0}
+};
+#endif
+
+#ifdef HAL_CAN_MODULE_ENABLED
+const PinMap PinMap_CAN_TD[] = {
+    {PA_12, CAN1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, AFIO_NONE)},
+    {PB_9,  CAN1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_NOPULL, AFIO_CAN1_2)},
+    {NC,    NP,    0}
+};
+#endif
+
+//*** ETHERNET ***
+
+//*** No Ethernet ***
+
+//*** QUADSPI ***
+
+//*** No QUADSPI ***
diff --git a/variants/MAPLEMINI_F103CB/ldscript.ld b/variants/MAPLEMINI_F103CB/ldscript.ld
new file mode 100644
index 0000000000..24c11e49af
--- /dev/null
+++ b/variants/MAPLEMINI_F103CB/ldscript.ld
@@ -0,0 +1,167 @@
+/*
+*****************************************************************************
+**
+
+**  File        : LinkerScript.ld
+**
+**  Abstract    : Linker script for STM32F103CBTx Device with
+**                128KByte FLASH, 20KByte RAM
+**
+**                Set heap size, stack size and stack location according
+**                to application requirements.
+**
+**                Set memory bank area and size if external memory is used.
+**
+**  Target      : STMicroelectronics STM32
+**
+**
+**  Distribution: The file is distributed as is, without any warranty
+**                of any kind.
+**
+**  (c)Copyright Ac6.
+**  You may use this file as-is or modify it according to the needs of your
+**  project. Distribution of this file (unmodified or modified) is not
+**  permitted. Ac6 permit registered System Workbench for MCU users the
+**  rights to distribute the assembled, compiled & linked contents of this
+**  file as part of an application binary file, provided that it is built
+**  using the System Workbench for MCU toolchain.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20005000;    /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 20K
+FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 128K
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text ALIGN(4):
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data goes into FLASH */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+  .ARM : {
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+  } >FLASH
+
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >FLASH
+  .init_array :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >FLASH
+  .fini_array :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+  
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+  
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
diff --git a/variants/MAPLEMINI_F103CB/stm32f1xx_hal_conf.h b/variants/MAPLEMINI_F103CB/stm32f1xx_hal_conf.h
new file mode 100644
index 0000000000..6947df27ac
--- /dev/null
+++ b/variants/MAPLEMINI_F103CB/stm32f1xx_hal_conf.h
@@ -0,0 +1,382 @@
+/**
+  ******************************************************************************
+  * @file    stm32f1xx_hal_conf.h
+  * @author  MCD Application Team
+  * @version V1.1.1
+  * @date    12-May-2017
+  * @brief   HAL configuration template file.
+  *          This file should be copied to the application folder and renamed
+  *          to stm32f1xx_hal_conf.h.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F1xx_HAL_CONF_H
+#define __STM32F1xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+  * @brief This is the list of modules to be used in the HAL driver
+  */
+#define HAL_MODULE_ENABLED
+#define HAL_ADC_MODULE_ENABLED
+/*#define HAL_CAN_MODULE_ENABLED*/
+/*#define HAL_CEC_MODULE_ENABLED*/
+#define HAL_CORTEX_MODULE_ENABLED
+/*#define HAL_CRC_MODULE_ENABLED*/
+/*#define HAL_DAC_MODULE_ENABLED*/
+#define HAL_DMA_MODULE_ENABLED
+/*#define HAL_ETH_MODULE_ENABLED*/
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+/*#define HAL_HCD_MODULE_ENABLED*/
+#define HAL_I2C_MODULE_ENABLED
+/*#define HAL_I2S_MODULE_ENABLED*/
+/*#define HAL_IRDA_MODULE_ENABLED*/
+/*#define HAL_IWDG_MODULE_ENABLED*/
+/*#define HAL_NAND_MODULE_ENABLED*/
+/*#define HAL_NOR_MODULE_ENABLED*/
+/*#define HAL_PCCARD_MODULE_ENABLED*/
+/*#define HAL_PCD_MODULE_ENABLED*/
+/*#define HAL_PWR_MODULE_ENABLED*/
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_RTC_MODULE_ENABLED
+/*#define HAL_SD_MODULE_ENABLED*/
+/*#define HAL_SMARTCARD_MODULE_ENABLED*/
+#define HAL_SPI_MODULE_ENABLED
+/*#define HAL_SRAM_MODULE_ENABLED*/
+#define HAL_TIM_MODULE_ENABLED
+#define HAL_UART_MODULE_ENABLED
+/*#define HAL_USART_MODULE_ENABLED*/
+/*#define HAL_WWDG_MODULE_ENABLED*/
+#define HAL_MMC_MODULE_ENABLED
+
+/* ########################## Oscillator Values adaptation ####################*/
+/**
+  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSE is used as system clock source, directly or through the PLL).
+  */
+#if !defined  (HSE_VALUE)
+#if defined(USE_STM3210C_EVAL)
+  #define HSE_VALUE    25000000U /*!< Value of the External oscillator in Hz */
+#else
+  #define HSE_VALUE    8000000U /*!< Value of the External oscillator in Hz */
+#endif
+#endif /* HSE_VALUE */
+
+#if !defined  (HSE_STARTUP_TIMEOUT)
+  #define HSE_STARTUP_TIMEOUT    100U      /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+  * @brief Internal High Speed oscillator (HSI) value.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSI is used as system clock source, directly or through the PLL).
+  */
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE              8000000U  /*!< Value of the Internal oscillator in Hz */
+#endif /* HSI_VALUE */
+
+/**
+  * @brief Internal Low Speed oscillator (LSI) value.
+  */
+#if !defined  (LSI_VALUE) 
+ #define LSI_VALUE               40000U    /*!< LSI Typical Value in Hz */
+#endif /* LSI_VALUE */                     /*!< Value of the Internal Low Speed oscillator in Hz
+                                                The real value may vary depending on the variations
+                                                in voltage and temperature. */
+/**
+  * @brief External Low Speed oscillator (LSE) value.
+  *        This value is used by the UART, RTC HAL module to compute the system frequency
+  */
+#if !defined  (LSE_VALUE)
+ #define LSE_VALUE               32768U    /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_VALUE */
+
+#if !defined  (LSE_STARTUP_TIMEOUT)
+  #define LSE_STARTUP_TIMEOUT    5000U     /*!< Time out for LSE start up, in ms */
+#endif /* LSE_STARTUP_TIMEOUT */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+   ===  you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+  * @brief This is the HAL system configuration section
+  */
+#define  VDD_VALUE                    3300U /*!< Value of VDD in mv */
+#define  TICK_INT_PRIORITY            0x0FU /*!< tick interrupt priority */
+#define  USE_RTOS                     0U
+#define  PREFETCH_ENABLE              1U
+
+/* ########################## Assert Selection ############################## */
+/**
+  * @brief Uncomment the line below to expanse the "assert_param" macro in the
+  *        HAL drivers code
+  */
+/* #define USE_FULL_ASSERT    1U */
+
+/* ################## Ethernet peripheral configuration ##################### */
+
+/* Section 1 : Ethernet peripheral configuration */
+
+/* MAC ADDRESS: MAC_ADDR0:MAC_ADDR1:MAC_ADDR2:MAC_ADDR3:MAC_ADDR4:MAC_ADDR5 */
+#define MAC_ADDR0   2U
+#define MAC_ADDR1   0U
+#define MAC_ADDR2   0U
+#define MAC_ADDR3   0U
+#define MAC_ADDR4   0U
+#define MAC_ADDR5   0U
+
+/* Definition of the Ethernet driver buffers size and count */
+#define ETH_RX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for receive               */
+#define ETH_TX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for transmit              */
+#define ETH_RXBUFNB                    8U                  /* 8 Rx buffers of size ETH_RX_BUF_SIZE  */
+#define ETH_TXBUFNB                    4U                  /* 4 Tx buffers of size ETH_TX_BUF_SIZE  */
+
+/* Section 2: PHY configuration section */
+
+/* DP83848 PHY Address*/
+#define DP83848_PHY_ADDRESS             0x01U
+/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/
+#define PHY_RESET_DELAY                 0x000000FFU
+/* PHY Configuration delay */
+#define PHY_CONFIG_DELAY                0x00000FFFU
+
+#define PHY_READ_TO                     0x0000FFFFU
+#define PHY_WRITE_TO                    0x0000FFFFU
+
+/* Section 3: Common PHY Registers */
+
+#define PHY_BCR                         ((uint16_t)0x0000)  /*!< Transceiver Basic Control Register   */
+#define PHY_BSR                         ((uint16_t)0x0001)  /*!< Transceiver Basic Status Register    */
+
+#define PHY_RESET                       ((uint16_t)0x8000)  /*!< PHY Reset */
+#define PHY_LOOPBACK                    ((uint16_t)0x4000)  /*!< Select loop-back mode */
+#define PHY_FULLDUPLEX_100M             ((uint16_t)0x2100)  /*!< Set the full-duplex mode at 100 Mb/s */
+#define PHY_HALFDUPLEX_100M             ((uint16_t)0x2000)  /*!< Set the half-duplex mode at 100 Mb/s */
+#define PHY_FULLDUPLEX_10M              ((uint16_t)0x0100)  /*!< Set the full-duplex mode at 10 Mb/s  */
+#define PHY_HALFDUPLEX_10M              ((uint16_t)0x0000)  /*!< Set the half-duplex mode at 10 Mb/s  */
+#define PHY_AUTONEGOTIATION             ((uint16_t)0x1000)  /*!< Enable auto-negotiation function     */
+#define PHY_RESTART_AUTONEGOTIATION     ((uint16_t)0x0200)  /*!< Restart auto-negotiation function    */
+#define PHY_POWERDOWN                   ((uint16_t)0x0800)  /*!< Select the power down mode           */
+#define PHY_ISOLATE                     ((uint16_t)0x0400)  /*!< Isolate PHY from MII                 */
+
+#define PHY_AUTONEGO_COMPLETE           ((uint16_t)0x0020)  /*!< Auto-Negotiation process completed   */
+#define PHY_LINKED_STATUS               ((uint16_t)0x0004)  /*!< Valid link established               */
+#define PHY_JABBER_DETECTION            ((uint16_t)0x0002)  /*!< Jabber condition detected            */
+
+/* Section 4: Extended PHY Registers */
+
+#define PHY_SR                          ((uint16_t)0x0010)  /*!< PHY status register Offset                      */
+#define PHY_MICR                        ((uint16_t)0x0011)  /*!< MII Interrupt Control Register                  */
+#define PHY_MISR                        ((uint16_t)0x0012)  /*!< MII Interrupt Status and Misc. Control Register */
+
+#define PHY_LINK_STATUS                 ((uint16_t)0x0001)  /*!< PHY Link mask                                   */
+#define PHY_SPEED_STATUS                ((uint16_t)0x0002)  /*!< PHY Speed mask                                  */
+#define PHY_DUPLEX_STATUS               ((uint16_t)0x0004)  /*!< PHY Duplex mask                                 */
+
+#define PHY_MICR_INT_EN                 ((uint16_t)0x0002)  /*!< PHY Enable interrupts                           */
+#define PHY_MICR_INT_OE                 ((uint16_t)0x0001)  /*!< PHY Enable output interrupt events              */
+
+#define PHY_MISR_LINK_INT_EN            ((uint16_t)0x0020)  /*!< Enable Interrupt on change of link status       */
+#define PHY_LINK_INTERRUPT              ((uint16_t)0x2000)  /*!< PHY link status interrupt mask                  */
+
+/* ################## SPI peripheral configuration ########################## */
+
+/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
+* Activated: CRC code is present inside driver
+* Deactivated: CRC code cleaned from driver
+*/
+
+#define USE_SPI_CRC                     1U
+
+/* Includes ------------------------------------------------------------------*/
+/**
+  * @brief Include module's header file
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+ #include "stm32f1xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+ #include "stm32f1xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+  #include "stm32f1xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_ETH_MODULE_ENABLED
+  #include "stm32f1xx_hal_eth.h"
+#endif /* HAL_ETH_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+ #include "stm32f1xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CEC_MODULE_ENABLED
+ #include "stm32f1xx_hal_cec.h"
+#endif /* HAL_CEC_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+ #include "stm32f1xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+ #include "stm32f1xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+ #include "stm32f1xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+ #include "stm32f1xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+ #include "stm32f1xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_SRAM_MODULE_ENABLED
+ #include "stm32f1xx_hal_sram.h"
+#endif /* HAL_SRAM_MODULE_ENABLED */
+
+#ifdef HAL_NOR_MODULE_ENABLED
+ #include "stm32f1xx_hal_nor.h"
+#endif /* HAL_NOR_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f1xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f1xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f1xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f1xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f1xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_PCCARD_MODULE_ENABLED
+ #include "stm32f1xx_hal_pccard.h"
+#endif /* HAL_PCCARD_MODULE_ENABLED */
+
+#ifdef HAL_SD_MODULE_ENABLED
+ #include "stm32f1xx_hal_sd.h"
+#endif /* HAL_SD_MODULE_ENABLED */
+
+#ifdef HAL_NAND_MODULE_ENABLED
+ #include "stm32f1xx_hal_nand.h"
+#endif /* HAL_NAND_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f1xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f1xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f1xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f1xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f1xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f1xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f1xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32f1xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_HCD_MODULE_ENABLED
+ #include "stm32f1xx_hal_hcd.h"
+#endif /* HAL_HCD_MODULE_ENABLED */
+
+#ifdef HAL_MMC_MODULE_ENABLED
+ #include "stm32f1xx_hal_mmc.h"
+#endif /* HAL_MMC_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  The assert_param macro is used for function's parameters check.
+  * @param  expr: If expr is false, it calls assert_failed function
+  *         which reports the name of the source file and the source
+  *         line number of the call that failed.
+  *         If expr is true, it returns no value.
+  * @retval None
+  */
+  #define assert_param(expr) ((expr) ? (void)0U : assert_failed((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+  void assert_failed(uint8_t* file, uint32_t line);
+#else
+  #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F1xx_HAL_CONF_H */
+
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/variants/MAPLEMINI_F103CB/variant.cpp b/variants/MAPLEMINI_F103CB/variant.cpp
new file mode 100644
index 0000000000..2920ea489c
--- /dev/null
+++ b/variants/MAPLEMINI_F103CB/variant.cpp
@@ -0,0 +1,168 @@
+/*
+ *******************************************************************************
+ * Copyright (c) 2018, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+#include "variant.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Pin number
+const PinName digitalPin[] = {
+// Right side
+  PB_11, //D0
+  PB_10, //D1
+  PB_2,  //D2
+  PB_0,  //D3
+  PA_7,  //D4
+  PA_6,  //D5
+  PA_5,  //D6
+  PA_4,  //D7
+  PA_3,  //D8
+  PA_2,  //D9
+  PA_1,  //D10
+  PA_0,  //D11
+  PC_15, //D12
+  PC_14, //D13
+  PC_13, //D14
+// Left side
+  PB_7,  //D15
+  PB_6,  //D16
+  PB_5,  //D17
+  PB_4,  //D18
+  PB_3,  //D19
+  PA_15, //D20
+  PA_14, //D21 - SWCLK
+  PA_13, //D22 - SWDI0
+  PA_12, //D23 - USB DP
+  PA_11, //D24 - USB DM
+  PA_10, //D25
+  PA_9,  //D26
+  PA_8,  //D27
+  PB_15, //D28
+  PB_14, //D29
+  PB_13, //D30
+  PB_12, //D31
+// Other
+  PB_8,  //D32 - BOOT0 - User buttons
+  PB_1,  //D33 - LED
+  PB_9,  //D34 - USB DISC
+// Duplicated pins to avoid issue with analogRead
+// A0 have to be greater than NUM_ANALOG_INPUTS
+  PB_0,  //D35/A0 = D3
+  PA_7,  //D36/A1 = D4
+  PA_6,  //D37/A2 = D5
+  PA_5,  //D38/A3 = D6
+  PA_4,  //D39/A4 = D7
+  PA_3,  //D40/A5 = D8
+  PA_2,  //D41/A6 = D9
+  PA_1,  //D42/A7 = D10
+  PA_0   //D43/A8 = D11
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+// ----------------------------------------------------------------------------
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+  * @brief  System Clock Configuration
+  *         The system Clock is configured as follow :
+  *            System Clock source            = PLL (HSE)
+  *            SYSCLK(Hz)                     = 72000000
+  *            HCLK(Hz)                       = 72000000
+  *            AHB Prescaler                  = 1
+  *            APB1 Prescaler                 = 2
+  *            APB2 Prescaler                 = 1
+  *            PLL_Source                     = HSE
+  *            PLL_Mul                        = 9
+  *            Flash Latency(WS)              = 2
+  *            ADC Prescaler                  = 6
+  *            USB Prescaler                  = 1.5
+  * @param  None
+  * @retval None
+  */
+WEAK void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;
+  RCC_PeriphCLKInitTypeDef PeriphClkInit;
+
+  /* Initializes the CPU, AHB and APB busses clocks */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
+  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
+  {
+    while(1);
+  }
+
+  /* Initializes the CPU, AHB and APB busses clocks */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
+                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
+  {
+    while(1);
+  }
+
+  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC|RCC_PERIPHCLK_USB;
+  PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
+  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
+  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
+  {
+    while(1);
+  }
+
+  /* Configure the Systick interrupt time */
+  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
+
+  /* Configure the Systick */
+  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
+
+  /* SysTick_IRQn interrupt configuration */
+  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
+}
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/variants/MAPLEMINI_F103CB/variant.h b/variants/MAPLEMINI_F103CB/variant.h
new file mode 100644
index 0000000000..4b808b365d
--- /dev/null
+++ b/variants/MAPLEMINI_F103CB/variant.h
@@ -0,0 +1,161 @@
+/*
+ *******************************************************************************
+ * Copyright (c) 2018, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+#ifndef _VARIANT_ARDUINO_STM32_
+#define _VARIANT_ARDUINO_STM32_
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+#include "PeripheralPins.h"
+
+#ifdef __cplusplus
+extern "C"{
+#endif // __cplusplus
+
+/*----------------------------------------------------------------------------
+ *        Pins
+ *----------------------------------------------------------------------------*/
+extern const PinName digitalPin[];
+
+enum {
+// Right side
+  PB11, //D0
+  PB10, //D1
+  PB2,  //D2
+  PB0,  //D3
+  PA7,  //D4
+  PA6,  //D5
+  PA5,  //D6
+  PA4,  //D7
+  PA3,  //D8
+  PA2,  //D9
+  PA1,  //D10
+  PA0,  //D11
+  PC15, //D12
+  PC14, //D13
+  PC13, //D14
+// Left side
+  PB7,  //D15
+  PB6,  //D16
+  PB5,  //D17
+  PB4,  //D18
+  PB3,  //D19
+  PA15, //D20
+  PA14, //D21 - SWCLK
+  PA13, //D22 - SWDI0
+  PA12, //D23 - USB DP
+  PA11, //D24 - USB DM
+  PA10, //D25
+  PA9,  //D26
+  PA8,  //D27
+  PB15, //D28
+  PB14, //D29
+  PB13, //D30
+  PB12, //D31
+// Other
+  PB8,  //D32 - BOOT0 - User buttons
+  PB1,  //D33 - LED
+  PB9,  //D34 - USB DISC
+// Duplicated pins to avoid issue with analogRead
+// A0 have to be greater than NUM_ANALOG_INPUTS
+  PB0_2,//D35/A0 = D3
+  PA7_2,//D36/A1 = D4
+  PA6_2,//D37/A2 = D5
+  PA5_2,//D38/A3 = D6
+  PA4_2,//D39/A4 = D7
+  PA3_2,//D40/A5 = D8
+  PA2_2,//D41/A6 = D9
+  PA1_2,//D42/A7 = D10
+  PA0_2,//D43/A8 = D11
+  PEND
+};
+
+// This must be a literal with the same value as PEND
+#define NUM_DIGITAL_PINS        44
+// This must be a literal with a value less than or equal to to MAX_ANALOG_INPUTS
+#define NUM_ANALOG_INPUTS       9
+#define NUM_ANALOG_FIRST        35
+
+// On-board LED pin number
+#define LED_BUILTIN             PB1
+#define LED_GREEN               LED_BUILTIN
+
+// SPI Definitions
+#define PIN_SPI_SS              PA4
+#define PIN_SPI_MOSI            PA7
+#define PIN_SPI_MISO            PA6
+#define PIN_SPI_SCK             PA5
+
+// I2C Definitions
+#define PIN_WIRE_SDA            PB7
+#define PIN_WIRE_SCL            PB6
+
+// Timer Definitions
+// Do not use timer used by PWM pins when possible. See PinMap_PWM.
+#define TIMER_TONE              TIM4
+
+// Do not use basic timer: OC is required
+#define TIMER_SERVO             TIM2  //TODO: advanced-control timers don't work
+
+// UART Definitions
+#define SERIAL_UART_INSTANCE    1
+// Default pin used for 'Serial' instance
+// Mandatory for Firmata
+#define PIN_SERIAL_RX           PA10
+#define PIN_SERIAL_TX           PA9
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+/*----------------------------------------------------------------------------
+ *        Arduino objects - C++ only
+ *----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use.  For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR        Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL     Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE    Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE       Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN  Hardware serial ports which are open for use.  Their RX & TX
+//                            pins are NOT connected to anything by default.
+#define SERIAL_PORT_MONITOR     Serial
+#define SERIAL_PORT_HARDWARE    Serial1
+#endif
+
+#endif /* _VARIANT_ARDUINO_STM32_ */