From 8d6acd40ea0ec7f07b9382c4d7160588d8020d88 Mon Sep 17 00:00:00 2001
From: Brandon Diaz <bld68@cornell.edu>
Date: Wed, 26 Apr 2023 00:40:34 -0400
Subject: [PATCH 1/2] variant(F4): add generic STM32F412Zx support

Signed-off-by: Brandon Diaz <bld68@cornell.edu>
---
 README.md                                     |   1 +
 boards.txt                                    |  32 +++
 .../STM32F4xx/F412Z(E-G)(J-T)/generic_clock.c |  49 ++++-
 .../STM32F4xx/F412Z(E-G)(J-T)/ldscript.ld     | 185 ++++++++++++++++++
 4 files changed, 265 insertions(+), 2 deletions(-)
 create mode 100644 variants/STM32F4xx/F412Z(E-G)(J-T)/ldscript.ld

diff --git a/README.md b/README.md
index d6fee8a9eb..0b8908117a 100644
--- a/README.md
+++ b/README.md
@@ -344,6 +344,7 @@ User can add a STM32 based board following this [wiki](https://github.com/stm32d
 | :green_heart:  | STM32F411RC<br>STM32F411RE | Generic Board | *1.9.0* |  |
 | :green_heart:  | STM32F412CE<br>STM32F412CG | Generic Board | *1.9.0* |  |
 | :green_heart:  | STM32F412RE<br>STM32F412RG | Generic Board | *1.9.0* |  |
+| :yellow_heart:  | STM32F412ZE<br>STM32F412ZG | Generic Board | **2.6.0** |  |
 | :green_heart:  | STM32F413CG<br>STM32F413CH | Generic Board | *1.9.0* |  |
 | :green_heart:  | STM32F413RG<br>STM32F413RH | Generic Board | *1.9.0* |  |
 | :green_heart:  | STM32F413ZG<br>STM32F413ZH | Generic Board | *2.0.0* |  |
diff --git a/boards.txt b/boards.txt
index 38721006e0..da41e14081 100644
--- a/boards.txt
+++ b/boards.txt
@@ -4113,6 +4113,38 @@ GenF4.menu.pnum.GENERIC_F412RGYXP.build.board=GENERIC_F412RGYXP
 GenF4.menu.pnum.GENERIC_F412RGYXP.build.product_line=STM32F412Rx
 GenF4.menu.pnum.GENERIC_F412RGYXP.build.variant=STM32F4xx/F412R(E-G)(T-Y)x(P)
 
+# Generic F412ZEJx
+GenF4.menu.pnum.GENERIC_F412ZEJX=Generic F412ZEJx
+GenF4.menu.pnum.GENERIC_F412ZEJX.upload.maximum_size=524288
+GenF4.menu.pnum.GENERIC_F412ZEJX.upload.maximum_data_size=262144
+GenF4.menu.pnum.GENERIC_F412ZEJX.build.board=GENERIC_F412ZEJX
+GenF4.menu.pnum.GENERIC_F412ZEJX.build.product_line=STM32F412Zx
+GenF4.menu.pnum.GENERIC_F412ZEJX.build.variant=STM32F4xx/F412Z(E-G)(J-T)
+
+# Generic F412ZGJx
+GenF4.menu.pnum.GENERIC_F412ZGJX=Generic F412ZGJx
+GenF4.menu.pnum.GENERIC_F412ZGJX.upload.maximum_size=1048576
+GenF4.menu.pnum.GENERIC_F412ZGJX.upload.maximum_data_size=262144
+GenF4.menu.pnum.GENERIC_F412ZGJX.build.board=GENERIC_F412ZGJX
+GenF4.menu.pnum.GENERIC_F412ZGJX.build.product_line=STM32F412Zx
+GenF4.menu.pnum.GENERIC_F412ZGJX.build.variant=STM32F4xx/F412Z(E-G)(J-T)
+
+# Generic F412ZETx
+GenF4.menu.pnum.GENERIC_F412ZETX=Generic F412ZETx
+GenF4.menu.pnum.GENERIC_F412ZETX.upload.maximum_size=524288
+GenF4.menu.pnum.GENERIC_F412ZETX.upload.maximum_data_size=262144
+GenF4.menu.pnum.GENERIC_F412ZETX.build.board=GENERIC_F412ZETX
+GenF4.menu.pnum.GENERIC_F412ZETX.build.product_line=STM32F412Zx
+GenF4.menu.pnum.GENERIC_F412ZETX.build.variant=STM32F4xx/F412Z(E-G)(J-T)
+
+# Generic F412ZGTx
+GenF4.menu.pnum.GENERIC_F412ZGTX=Generic F412ZGTx
+GenF4.menu.pnum.GENERIC_F412ZGTX.upload.maximum_size=1048576
+GenF4.menu.pnum.GENERIC_F412ZGTX.upload.maximum_data_size=262144
+GenF4.menu.pnum.GENERIC_F412ZGTX.build.board=GENERIC_F412ZGTX
+GenF4.menu.pnum.GENERIC_F412ZGTX.build.product_line=STM32F412Zx
+GenF4.menu.pnum.GENERIC_F412ZGTX.build.variant=STM32F4xx/F412Z(E-G)(J-T)
+
 # Generic F413CGUx
 GenF4.menu.pnum.GENERIC_F413CGUX=Generic F413CGUx
 GenF4.menu.pnum.GENERIC_F413CGUX.upload.maximum_size=1048576
diff --git a/variants/STM32F4xx/F412Z(E-G)(J-T)/generic_clock.c b/variants/STM32F4xx/F412Z(E-G)(J-T)/generic_clock.c
index 2180fca490..fc21569d7a 100644
--- a/variants/STM32F4xx/F412Z(E-G)(J-T)/generic_clock.c
+++ b/variants/STM32F4xx/F412Z(E-G)(J-T)/generic_clock.c
@@ -21,8 +21,53 @@
   */
 WEAK void SystemClock_Config(void)
 {
-  /* SystemClock_Config can be generated by STM32CubeMX */
-#warning "SystemClock_Config() is empty. Default clock at reset is used."
+  RCC_OscInitTypeDef RCC_OscInitStruct = {};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {};
+  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {};
+
+  /** Configure the main internal regulator output voltage
+  */
+  __HAL_RCC_PWR_CLK_ENABLE();
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+
+  /** Initializes the RCC Oscillators according to the specified parameters
+  * in the RCC_OscInitTypeDef structure.
+  */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
+  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
+  RCC_OscInitStruct.PLL.PLLM = 8;
+  RCC_OscInitStruct.PLL.PLLN = 96;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+  RCC_OscInitStruct.PLL.PLLQ = 4;
+  RCC_OscInitStruct.PLL.PLLR = 2;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
+    Error_Handler();
+  }
+
+  /** Initializes the CPU, AHB and APB buses 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_3) != HAL_OK) {
+    Error_Handler();
+  }
+
+  /** Initializes the peripherals clock
+  */
+  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_SDIO | RCC_PERIPHCLK_CLK48;
+  PeriphClkInitStruct.Clk48ClockSelection = RCC_CLK48CLKSOURCE_PLLQ;
+  PeriphClkInitStruct.SdioClockSelection = RCC_SDIOCLKSOURCE_CLK48;
+  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK) {
+    Error_Handler();
+  }
 }
 
 #endif /* ARDUINO_GENERIC_* */
diff --git a/variants/STM32F4xx/F412Z(E-G)(J-T)/ldscript.ld b/variants/STM32F4xx/F412Z(E-G)(J-T)/ldscript.ld
new file mode 100644
index 0000000000..545b6e13c4
--- /dev/null
+++ b/variants/STM32F4xx/F412Z(E-G)(J-T)/ldscript.ld
@@ -0,0 +1,185 @@
+/*
+******************************************************************************
+**
+** @file        : LinkerScript.ld
+**
+** @author      : Auto-generated by STM32CubeIDE
+**
+** @brief       : Linker script for STM32F412ZGTx Device from STM32F4 series
+**                      1024Kbytes FLASH
+**                      256Kbytes 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.
+**
+******************************************************************************
+** @attention
+**
+** Copyright (c) 2023 STMicroelectronics.
+** All rights reserved.
+**
+** This software is licensed under terms that can be found in the LICENSE file
+** in the root directory of this software component.
+** If no LICENSE file comes with this software, it is provided AS-IS.
+**
+******************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */
+
+_Min_Heap_Size = 0x200; /* required amount of heap */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Memories definition */
+MEMORY
+{
+  RAM    (xrw)    : ORIGIN = 0x20000000,   LENGTH = LD_MAX_DATA_SIZE
+  FLASH    (rx)    : ORIGIN = 0x8000000 + LD_FLASH_OFFSET, LENGTH = LD_MAX_SIZE - LD_FLASH_OFFSET
+}
+
+/* Sections */
+SECTIONS
+{
+  /* The startup code into "FLASH" Rom type memory */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data into "FLASH" Rom type memory */
+  .text :
+  {
+    . = 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 into "FLASH" Rom type memory */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : {
+    . = ALIGN(4);
+    *(.ARM.extab* .gnu.linkonce.armextab.*)
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM : {
+    . = ALIGN(4);
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+    . = ALIGN(4);
+  } >FLASH
+
+  .preinit_array     :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+    . = ALIGN(4);
+  } >FLASH
+
+  .init_array :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+    . = ALIGN(4);
+  } >FLASH
+
+  .fini_array :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+    . = ALIGN(4);
+  } >FLASH
+
+  /* Used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections into "RAM" Ram type memory */
+  .data :
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+    *(.RamFunc)        /* .RamFunc sections */
+    *(.RamFunc*)       /* .RamFunc* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+
+  } >RAM AT> FLASH
+
+  /* Uninitialized data section into "RAM" Ram type memory */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss section */
+    _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" Ram  type memory left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+  /* Remove information from the compiler libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}

From 3f251f2dde841293978025f4787c2111cc67f6a6 Mon Sep 17 00:00:00 2001
From: Frederic Pillon <frederic.pillon@st.com>
Date: Mon, 15 May 2023 14:45:53 +0200
Subject: [PATCH 2/2] variant(F4): add Nucleo F412ZG support

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>
---
 README.md                                     |   1 +
 boards.txt                                    |  14 +
 .../F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.cpp | 222 +++++++++++++++
 .../F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.h   | 257 ++++++++++++++++++
 4 files changed, 494 insertions(+)
 create mode 100644 variants/STM32F4xx/F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.cpp
 create mode 100644 variants/STM32F4xx/F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.h

diff --git a/README.md b/README.md
index 0b8908117a..052e8e8ff7 100644
--- a/README.md
+++ b/README.md
@@ -87,6 +87,7 @@ User can add a STM32 based board following this [wiki](https://github.com/stm32d
 | Status | Device(s) | Name | Release | Notes |
 | :----: | :-------: | ---- | :-----: | :---- |
 | :green_heart:  | STM32F207ZG | [Nucleo F207ZG](http://www.st.com/en/evaluation-tools/nucleo-f207zg.html) | *0.2.0* |  |
+| :yellow_heart:  | STM32F412ZG | [Nucleo F412ZG](http://www.st.com/en/evaluation-tools/nucleo-f412zg.html) | **2.6.0** |  |
 | :green_heart:  | STM32F429ZI | [Nucleo F429ZI](http://www.st.com/en/evaluation-tools/nucleo-f429zi.html) | *0.1.0* |  |
 | :green_heart:  | STM32F722ZE | [Nucleo F722ZE](http://www.st.com/en/evaluation-tools/nucleo-f722ze.html) | *2.4.0* |  |
 | :green_heart:  | STM32F767ZI | [Nucleo F767ZI](http://www.st.com/en/evaluation-tools/nucleo-f767zi.html) | *1.4.0* |  |
diff --git a/boards.txt b/boards.txt
index da41e14081..ef45ddf37f 100644
--- a/boards.txt
+++ b/boards.txt
@@ -37,6 +37,20 @@ Nucleo_144.menu.pnum.NUCLEO_F207ZG.build.variant=STM32F2xx/F207Z(C-E-F-G)T_F217Z
 Nucleo_144.menu.pnum.NUCLEO_F207ZG.build.peripheral_pins=-DCUSTOM_PERIPHERAL_PINS
 Nucleo_144.menu.pnum.NUCLEO_F207ZG.build.cmsis_lib_gcc=arm_cortexM3l_math
 
+# NUCLEO_F412ZG board
+Nucleo_144.menu.pnum.NUCLEO_F412ZG=Nucleo F412ZG
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.node=NODE_F412ZG
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.upload.maximum_size=1048576
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.upload.maximum_data_size=262144
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.build.mcu=cortex-m4
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.build.fpu=-mfpu=fpv4-sp-d16
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.build.float-abi=-mfloat-abi=hard
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.build.board=NUCLEO_F412ZG
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.build.series=STM32F4xx
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.build.product_line=STM32F412Zx
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.build.variant=STM32F4xx/F412Z(E-G)(J-T)
+Nucleo_144.menu.pnum.NUCLEO_F412ZG.build.cmsis_lib_gcc=arm_cortexM4lf_math
+
 # NUCLEO_F413ZH board
 Nucleo_144.menu.pnum.NUCLEO_F413ZH=Nucleo F413ZH
 Nucleo_144.menu.pnum.NUCLEO_F413ZH.node=NODE_F413ZH
diff --git a/variants/STM32F4xx/F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.cpp b/variants/STM32F4xx/F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.cpp
new file mode 100644
index 0000000000..ba691fc5f8
--- /dev/null
+++ b/variants/STM32F4xx/F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.cpp
@@ -0,0 +1,222 @@
+/*
+ *******************************************************************************
+ * Copyright (c) 2023, STMicroelectronics
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ *******************************************************************************
+ */
+#if defined(ARDUINO_NUCLEO_F412ZG)
+#include "pins_arduino.h"
+
+// Digital PinName array
+// This array allows to wrap Arduino pin number(Dx or x)
+// to STM32 PinName (PX_n)
+const PinName digitalPin[] = {
+  PG_9,  //D0
+  PG_14, //D1
+  PF_15, //D2
+  PE_13, //D3
+  PF_14, //D4
+  PE_11, //D5
+  PE_9,  //D6
+  PF_13, //D7
+  PF_12, //D8
+  PD_15, //D9
+  PD_14, //D10
+  PA_7,  //D11/A10
+  PA_6,  //D12/A11
+  PA_5,  //D13/A12
+  PB_9,  //D14
+  PB_8,  //D15
+  PC_6,  //D16
+  PB_15, //D17
+  PB_13, //D18
+  PB_12, //D19
+  PA_15, //D20
+  PC_7,  //D21
+  PB_5,  //D22
+  PB_3,  //D23
+  PA_4,  //D24/A13
+  PB_4,  //D25
+  PB_6,  //D26
+  PB_2,  //D27
+  PD_13, //D28
+  PD_12, //D29
+  PD_11, //D30
+  PE_2,  //D31
+  PA_0,  //D32/A14
+  PB_0,  //D33/A15 - LED_GREEN
+  PE_0,  //D34
+  PB_11, //D35
+  PB_10, //D36
+  PE_15, //D37
+  PE_14, //D38
+  PE_12, //D39
+  PE_10, //D40
+  PE_7,  //D41
+  PE_8,  //D42
+  PC_8,  //D43
+  PC_9,  //D44
+  PC_10, //D45
+  PC_11, //D46
+  PC_12, //D47
+  PD_2,  //D48
+  PG_2,  //D49
+  PG_3,  //D50
+  PD_7,  //D51
+  PD_6,  //D52
+  PD_5,  //D53
+  PD_4,  //D54
+  PD_3,  //D55
+  PE_2,  //D56
+  PE_4,  //D57
+  PE_5,  //D58
+  PE_6,  //D59
+  PE_3,  //D60
+  PF_8,  //D61
+  PF_7,  //D62
+  PF_9,  //D63
+  PG_1,  //D64
+  PG_0,  //D65
+  PD_1,  //D66
+  PD_0,  //D67
+  PF_0,  //D68
+  PF_1,  //D69
+  PF_2,  //D70
+  PB_7,  //D71 - LED_BLUE
+  PB_14, //D72 - LED_RED
+  PC_13, //D73 - USER_BTN
+  PD_9,  //D74 - Serial Rx
+  PD_8,  //D75 - Serial Tx
+  PA_3,  //D76/A0
+  PC_0,  //D77/A1
+  PC_3,  //D78/A2
+  PC_1,  //D79/A3
+  PC_4,  //D80/A4
+  PC_5,  //D81/A5
+  PB_1,  //D82/A6
+  PC_2,  //D83/A7
+  PA_2,  //D84/A8
+  PF_6,  //D85
+  PA_1,  //D86/A9
+  PF_4,  //D87
+  PA_8,  //D88
+  PA_9,  //D89
+  PA_10, //D90
+  PA_11, //D91
+  PA_12, //D92
+  PA_13, //D93
+  PA_14, //D94
+  PF_3,  //D95/A20
+  PF_5,  //D96/A21
+  PF_10, //D97/A22
+  PC_14, //D98
+  PC_15, //D99
+  PD_10, //D100
+  PE_1,  //D101
+  PF_11, //D102
+  PG_4,  //D103
+  PG_5,  //D104
+  PG_6,  //D105
+  PG_7,  //D106
+  PG_8,  //D107
+  PG_10, //D108
+  PG_11, //D109
+  PG_12, //D110
+  PG_13, //D111
+  PG_15, //D112
+  PH_0,  //D113
+  PH_1   //D114
+};
+
+// Analog (Ax) pin number array
+const uint32_t analogInputPin[] = {
+  76, //A0
+  77, //A1
+  78, //A2
+  79, //A3
+  80, //A4
+  81, //A5
+  82, //A6
+  83, //A7
+  84, //A8
+  86, //A9
+  11, //A10
+  12, //A11
+  13, //A12
+  24, //A13
+  32, //A14
+  33  //A15
+};
+
+// ----------------------------------------------------------------------------
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+  * @brief  System Clock Configuration
+  * @param  None
+  * @retval None
+  */
+WEAK void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct = {};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {};
+  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {};
+
+  /** Configure the main internal regulator output voltage
+  */
+  __HAL_RCC_PWR_CLK_ENABLE();
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+
+  /** Initializes the RCC Oscillators according to the specified parameters
+  * in the RCC_OscInitTypeDef structure.
+  */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLM = 8;
+  RCC_OscInitStruct.PLL.PLLN = 384;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
+  RCC_OscInitStruct.PLL.PLLQ = 8;
+  RCC_OscInitStruct.PLL.PLLR = 2;
+  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
+    Error_Handler();
+  }
+
+  /** Initializes the CPU, AHB and APB buses 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_3) != HAL_OK) {
+    Error_Handler();
+  }
+
+  /** Initializes the peripherals clock
+  */
+  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_SDIO | RCC_PERIPHCLK_CLK48;
+  PeriphClkInitStruct.Clk48ClockSelection = RCC_CLK48CLKSOURCE_PLLQ;
+  PeriphClkInitStruct.SdioClockSelection = RCC_SDIOCLKSOURCE_CLK48;
+  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK) {
+    Error_Handler();
+  }
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ARDUINO_NUCLEO_F412ZG */
diff --git a/variants/STM32F4xx/F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.h b/variants/STM32F4xx/F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.h
new file mode 100644
index 0000000000..0264ae395c
--- /dev/null
+++ b/variants/STM32F4xx/F412Z(E-G)(J-T)/variant_NUCLEO_F412ZG.h
@@ -0,0 +1,257 @@
+/*
+ *******************************************************************************
+ * Copyright (c) 2023, STMicroelectronics
+ * All rights reserved.
+ *
+ * This software component is licensed by ST under BSD 3-Clause license,
+ * the "License"; You may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at:
+ *                        opensource.org/licenses/BSD-3-Clause
+ *
+ *******************************************************************************
+ */
+#pragma once
+
+/*----------------------------------------------------------------------------
+ *        STM32 pins number
+ *----------------------------------------------------------------------------*/
+
+#define PG9                     0
+#define PG14                    1
+#define PF15                    2
+#define PE13                    3
+#define PF14                    4
+#define PE11                    5
+#define PE9                     6
+#define PF13                    7
+#define PF12                    8
+#define PD15                    9
+#define PD14                    10
+#define PA7                     PIN_A10
+#define PA6                     PIN_A11
+#define PA5                     PIN_A12
+#define PB9                     14
+#define PB8                     15
+#define PC6                     16
+#define PB15                    17
+#define PB13                    18
+#define PB12                    19
+#define PA15                    20
+#define PC7                     21
+#define PB5                     22
+#define PB3                     23
+#define PA4                     PIN_A13
+#define PB4                     25
+#define PB6                     26
+#define PB2                     27
+#define PD13                    28
+#define PD12                    29
+#define PD11                    30
+#define PE2                     31
+#define PA0                     PIN_A14
+#define PB0                     PIN_A15 // LED_GREEN
+#define PE0                     34
+#define PB11                    35
+#define PB10                    36
+#define PE15                    37
+#define PE14                    38
+#define PE12                    39
+#define PE10                    40
+#define PE7                     41
+#define PE8                     42
+#define PC8                     43
+#define PC9                     44
+#define PC10                    45
+#define PC11                    46
+#define PC12                    47
+#define PD2                     48
+#define PG2                     49
+#define PG3                     50
+#define PD7                     51
+#define PD6                     52
+#define PD5                     53
+#define PD4                     54
+#define PD3                     55
+// 56 is PE2                   (31)
+#define PE4                     57
+#define PE5                     58
+#define PE6                     59
+#define PE3                     60
+#define PF8                     61
+#define PF7                     62
+#define PF9                     63
+#define PG1                     64
+#define PG0                     65
+#define PD1                     66
+#define PD0                     67
+#define PF0                     68
+#define PF1                     69
+#define PF2                     70
+#define PB7                     71 // LED_BLUE
+#define PB14                    72 // LED_RED
+#define PC13                    73 // USER_BTN
+#define PD9                     74 // Serial Rx
+#define PD8                     75 // Serial Tx
+#define PA3                     PIN_A0
+#define PC0                     PIN_A1
+#define PC3                     PIN_A2
+#define PC1                     PIN_A3
+#define PC4                     PIN_A4
+#define PC5                     PIN_A5
+#define PB1                     PIN_A6
+#define PC2                     PIN_A7
+#define PA2                     PIN_A8
+// ST Morpho
+#define PF6                     85
+#define PA1                     PIN_A9
+#define PF4                     87
+#define PA8                     88
+#define PA9                     89
+#define PA10                    90
+#define PA11                    91
+#define PA12                    92
+#define PA13                    93 // SWD
+#define PA14                    94 // SWD
+#define PF3                     95
+#define PF5                     96
+#define PF10                    97
+#define PC14                    98
+#define PC15                    99
+#define PD10                    100
+#define PE1                     101
+#define PF11                    102
+#define PG4                     103
+#define PG5                     104
+#define PG6                     105
+#define PG7                     106
+#define PG8                     107
+#define PG10                    108
+#define PG11                    109
+#define PG12                    110
+#define PG13                    111
+#define PG15                    112
+#define PH0                     113 // MCO
+#define PH1                     114
+
+// Alternate pins number
+#define PA0_ALT1                (PA0  | ALT1)
+#define PA1_ALT1                (PA1  | ALT1)
+#define PA2_ALT1                (PA2  | ALT1)
+#define PA2_ALT2                (PA2  | ALT2)
+#define PA3_ALT1                (PA3  | ALT1)
+#define PA3_ALT2                (PA3  | ALT2)
+#define PA4_ALT1                (PA4  | ALT1)
+#define PA5_ALT1                (PA5  | ALT1)
+#define PA6_ALT1                (PA6  | ALT1)
+#define PA7_ALT1                (PA7  | ALT1)
+#define PA7_ALT2                (PA7  | ALT2)
+#define PA7_ALT3                (PA7  | ALT3)
+#define PA15_ALT1               (PA15 | ALT1)
+#define PB0_ALT1                (PB0  | ALT1)
+#define PB0_ALT2                (PB0  | ALT2)
+#define PB1_ALT1                (PB1  | ALT1)
+#define PB1_ALT2                (PB1  | ALT2)
+#define PB3_ALT1                (PB3  | ALT1)
+#define PB4_ALT1                (PB4  | ALT1)
+#define PB5_ALT1                (PB5  | ALT1)
+#define PB8_ALT1                (PB8  | ALT1)
+#define PB9_ALT1                (PB9  | ALT1)
+#define PB12_ALT1               (PB12 | ALT1)
+#define PB13_ALT1               (PB13 | ALT1)
+#define PB14_ALT1               (PB14 | ALT1)
+#define PB14_ALT2               (PB14 | ALT2)
+#define PB15_ALT1               (PB15 | ALT1)
+#define PB15_ALT2               (PB15 | ALT2)
+#define PC6_ALT1                (PC6  | ALT1)
+#define PC7_ALT1                (PC7  | ALT1)
+#define PC8_ALT1                (PC8  | ALT1)
+#define PC9_ALT1                (PC9  | ALT1)
+#define PE2_ALT1                (PE2  | ALT1)
+#define PE4_ALT1                (PE4  | ALT1)
+#define PE5_ALT1                (PE5  | ALT1)
+#define PE6_ALT1                (PE6  | ALT1)
+#define PE11_ALT1               (PE11 | ALT1)
+#define PE12_ALT1               (PE12 | ALT1)
+#define PE13_ALT1               (PE13 | ALT1)
+#define PE14_ALT1               (PE14 | ALT1)
+
+#define NUM_DIGITAL_PINS        115
+#define NUM_ANALOG_INPUTS       16
+
+// On-board LED pin number
+#define LED_GREEN               PB0
+#define LED_BLUE                PB7
+#define LED_RED                 PB14
+#ifndef LED_BUILTIN
+  #define LED_BUILTIN           LED_GREEN
+#endif
+
+// On-board user button
+#ifndef USER_BTN
+  #define USER_BTN              PC13
+#endif
+
+// Timer Definitions (optional)
+// Use TIM6/TIM7 when possible as servo and tone don't need GPIO output pin
+#ifndef TIMER_TONE
+  #define TIMER_TONE            TIM6
+#endif
+#ifndef TIMER_SERVO
+  #define TIMER_SERVO           TIM7
+#endif
+
+// UART Definitions
+#ifndef SERIAL_UART_INSTANCE
+  #define SERIAL_UART_INSTANCE  3
+#endif
+
+// Default pin used for 'Serial' instance (ex: ST-Link)
+// Mandatory for Firmata
+#ifndef PIN_SERIAL_RX
+  #define PIN_SERIAL_RX         PD9
+#endif
+#ifndef PIN_SERIAL_TX
+  #define PIN_SERIAL_TX         PD8
+#endif
+
+/* Extra HAL modules */
+#if !defined(HAL_QSPI_MODULE_DISABLED)
+  #define HAL_QSPI_MODULE_ENABLED
+#endif
+#if !defined(HAL_SD_MODULE_DISABLED)
+  #define HAL_SD_MODULE_ENABLED
+#endif
+
+// HSE default value is 25MHz in HAL
+// HSE_BYPASS is 8MHz
+#ifndef HSE_BYPASS_NOT_USED
+  #define HSE_VALUE             8000000
+#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.
+  #ifndef SERIAL_PORT_MONITOR
+    #define SERIAL_PORT_MONITOR   Serial
+  #endif
+  #ifndef SERIAL_PORT_HARDWARE
+    #define SERIAL_PORT_HARDWARE  Serial
+  #endif
+#endif