Merge pull request #171 from Links2004/esp8266

OneWire INPUT_PULLUP, cli and sei, add SPIClass::transfer16

Author: igrr

README.md

@@ -5,11 +5,11 @@ This project brings support for ESP8266 chip to the Arduino environment. ESP8266
 
 ### Downloads ###
 
-| OS | Build status | Latest release |
-| --- | ------------ | -------------- |
-| Linux | [![Linux build status](http://img.shields.io/travis/igrr/Arduino.svg)](https://travis-ci.org/igrr/Arduino) | [arduino-1.6.1-linux64.tar.xz](../../releases/download/1.6.1-esp8266-1/arduino-1.6.1-linux64.tar.xz) |
-| Windows | [![Windows build status](http://img.shields.io/appveyor/ci/igrr/Arduino.svg)](https://ci.appveyor.com/project/igrr/Arduino) | [arduino-1.6.1-p1-windows.zip](https://github.com/igrr/Arduino/releases/download/1.6.1-esp8266-1/arduino-1.6.1-p1-windows.zip) |
-| OS X |  | [arduino-1.6.1-macosx-java-latest-signed.zip](../../releases/download/1.6.1-esp8266-1/arduino-1.6.1-macosx-java-latest-signed.zip) |
+| OS | Build status | Latest release | Alpha Version |
+| --- | ------------ | -------------- | --------------- |
+| Linux | [![Linux build status](http://img.shields.io/travis/igrr/Arduino.svg)](https://travis-ci.org/igrr/Arduino) | [arduino-1.6.1-linux64.tar.xz](../../releases/download/1.6.1-esp8266-1/arduino-1.6.1-linux64.tar.xz) | |
+| Windows | [![Windows build status](http://img.shields.io/appveyor/ci/igrr/Arduino.svg)](https://ci.appveyor.com/project/igrr/Arduino) | [arduino-1.6.1-p1-windows.zip](https://github.com/igrr/Arduino/releases/download/1.6.1-esp8266-1/arduino-1.6.1-p1-windows.zip) |  [appveyor Build](https://ci.appveyor.com/project/igrr/Arduino/build/artifacts) |
+| OS X |  | [arduino-1.6.1-macosx-java-latest-signed.zip](../../releases/download/1.6.1-esp8266-1/arduino-1.6.1-macosx-java-latest-signed.zip) | |
 
 
 ### Building from source ###
@@ -44,6 +44,10 @@ Pin interrupts are supported through ```attachInterrupt```, ```detachInterrupt``
 Interrupts may be attached to any GPIO pin, except GPIO16. Standard Arduino interrupt
 types are supported: ```CHANGE```, ```RISING```, ```FALLING```.
 
+#### Pin Functions ####
+
+![Pin Functions](https://raw.githubusercontent.com/Links2004/Arduino/esp8266/docs/pin_functions.png)
+
 #### Timing and delays ####
 ```millis``` and ```micros``` return the number of milliseconds and microseconds elapsed after reset, respectively.
 

docs/ESP01_connect.jpg

@@ -42,6 +42,9 @@ typedef enum {
 #define wdt_disable()       ESP.wdtDisable()
 #define wdt_reset()         ESP.wdtFeed()
 
+#define cli()        ets_intr_lock()       // IRQ Disable
+#define sei()        ets_intr_unlock()     // IRQ Enable
+
 enum WakeMode {
     WAKE_RF_DEFAULT = 0, // RF_CAL or not after deep-sleep wake up, depends on init data byte 108.
     WAKE_RFCAL = 1,      // RF_CAL after deep-sleep wake up, there will be large current.

docs/pin_functions.png

@@ -57,7 +57,7 @@ void SPIClass::setDataMode(uint8_t dataMode) {
 }
 
 void SPIClass::setBitOrder(uint8_t bitOrder) {
-  if (bitOrder == MSBFIRST){
+  if (bitOrder == MSBFIRST) {
     SPI1C &= ~(SPICWBO | SPICRBO);
   } else {
     SPI1C |= (SPICWBO | SPICRBO);
@@ -76,3 +76,25 @@ uint8_t SPIClass::transfer(uint8_t data) {
   return (uint8_t)(SPI1W0 & 0xff);
 }
 
+uint16_t SPIClass::transfer16(uint16_t data) {
+    union {
+            uint16_t val;
+            struct {
+                    uint8_t lsb;
+                    uint8_t msb;
+            };
+    } in, out;
+    in.val = data;
+
+    if((SPI1C & (SPICWBO | SPICRBO))) {
+        //MSBFIRST
+        out.msb = transfer(in.msb);
+        out.lsb = transfer(in.lsb);
+    } else {
+        //LSBFIRST
+        out.lsb = transfer(in.lsb);
+        out.msb = transfer(in.msb);
+    }
+    return out.val;
+}
+

hardware/esp8266com/esp8266/cores/esp8266/Esp.h

@@ -80,6 +80,7 @@ class SPIClass {
   void setClockDivider(uint32_t clockDiv);
   void beginTransaction(SPISettings settings);
   uint8_t transfer(uint8_t data);
+  uint16_t transfer16(uint16_t data);
   void endTransaction(void);
 };
 

hardware/esp8266com/esp8266/libraries/SPI/SPI.cpp

@@ -119,7 +119,7 @@ sample code bearing this copyright.
 
 OneWire::OneWire(uint8_t pin)
 {
-	pinMode(pin, INPUT);
+	pinMode(pin, INPUT_PULLUP);
 	bitmask = PIN_TO_BITMASK(pin);
 	baseReg = PIN_TO_BASEREG(pin);
 #if ONEWIRE_SEARCH