Merge remote-tracking branch 'remotes/esp8266/master'

README.md

@@ -38,7 +38,7 @@ Documentation: [http://esp8266.github.io/Arduino/versions/2.0.0/](http://esp8266
 ##### Staging version ![](http://arduino.esp8266.com/staging/badge.svg)
 Boards manager link: `http://arduino.esp8266.com/staging/package_esp8266com_index.json`
 
-Documentation: [http://esp8266.github.io/Arduino/versions/2.1.0-rc1/](http://esp8266.github.io/Arduino/versions/2.1.0-rc1/)
+Documentation: [http://esp8266.github.io/Arduino/versions/2.1.0-rc2/](http://esp8266.github.io/Arduino/versions/2.1.0-rc2/)
 
 ### Using git version [![Linux build status](https://travis-ci.org/esp8266/Arduino.svg)](https://travis-ci.org/esp8266/Arduino)
 

cores/esp8266/Esp.cpp

@@ -329,6 +329,28 @@ bool EspClass::checkFlashConfig(bool needsEquals) {
     return false;
 }
 
+String EspClass::getResetReason(void) {
+    char buff[32];
+    if (resetInfo.reason == REASON_DEFAULT_RST) { // normal startup by power on 
+      strcpy_P(buff, PSTR("Power on"));
+    } else if (resetInfo.reason == REASON_WDT_RST) { // hardware watch dog reset
+      strcpy_P(buff, PSTR("Hardware Watchdog"));
+    } else if (resetInfo.reason == REASON_EXCEPTION_RST) { // exception reset, GPIO status won’t change 
+      strcpy_P(buff, PSTR("Exception"));
+    } else if (resetInfo.reason == REASON_SOFT_WDT_RST) { // software watch dog reset, GPIO status won’t change 
+      strcpy_P(buff, PSTR("Software Watchdog"));
+    } else if (resetInfo.reason == REASON_SOFT_RESTART) { // software restart ,system_restart , GPIO status won’t change 
+      strcpy_P(buff, PSTR("Software/System restart"));
+    } else if (resetInfo.reason == REASON_DEEP_SLEEP_AWAKE) { // wake up from deep-sleep 
+      strcpy_P(buff, PSTR("Deep-Sleep Wake"));
+    } else if (resetInfo.reason == REASON_EXT_SYS_RST) { // external system reset 
+      strcpy_P(buff, PSTR("External System"));
+    } else {
+      strcpy_P(buff, PSTR("Unknown"));
+    }
+    return String(buff);
+}
+
 String EspClass::getResetInfo(void) {
     if(resetInfo.reason != 0) {
         char buff[200];

cores/esp8266/Esp.h

@@ -131,6 +131,7 @@ class EspClass {
         uint32_t getFreeSketchSpace();
         bool updateSketch(Stream& in, uint32_t size, bool restartOnFail = false, bool restartOnSuccess = true);
 
+        String getResetReason();
         String getResetInfo();
         struct rst_info * getResetInfoPtr();
 

doc/changes.md

@@ -6,6 +6,7 @@ title: Change Log
 
 ### Core
 
+- Add function to know last reset resaon.
 - Allow control of enabling debug and debug level from IDE
 - Make HardwareSerial::begin() and end() interrupt safe
 - Put HardwareSerial and cbuf methods called from interrupt context in RAM
@@ -13,7 +14,6 @@ title: Change Log
 - Add espduino board
 - Rework StreamString::write to use String internal buffer directly (#1289)
 - Add function to measure stack high water mark
-- Update SDK to esp_iot_sdk_v1.5.0_15_12_15_p1
 - Fix RAM corruption caused by our hook of register_chipv6_phy(init_data*).
 - Optimize PWM interrupt handler for better precision
 - Add warning levels configurable through Preferences
@@ -22,6 +22,9 @@ title: Change Log
 - Set CPU frequency before running setup
 - Add core_esp8266_features.h to be able to detect the features and libraries included in the ESP core
 - Added ESPino to supported boards
+- Fix pwm first step getting skipped
+- Update SDK to 1.5.1_16_01_08
+- HardwareSerial: allow mapping of UART0 TX to GPIO2
 
 ### Libraries
 
@@ -39,6 +42,13 @@ title: Change Log
 - Fix link-time dependency of ESP8266WebServer on SPIFFS (#862)
 - Allow setting client side TLS key and certificate
 - Replace chain of UDP pbufs with a single pbuf before sending (#1009)
+- Unique Built-In libraries library.properties name
+- Improvements for MD5Builder with Stream
+- ESP8266SSDP: fixing TTL to 2 per spec
+- ESP8266WebServer: a content length of zero should also be sent
+- Use SoftwareSerial version 2.2
+- EEPROM: optimised `_dirty` flag
+- ESP8266mDNS: advertise all hosted services
 - Remove bundled OneWire - ESP8266 support has been merged in the official OneWire sources
 
 ### Tools

doc/libraries.md

@@ -83,6 +83,8 @@ APIs related to deep sleep and watchdog timer are available in the `ESP` object,
 
 `ESP.restart()` restarts the CPU.
 
+`ESP.getResetReason()` returns String containing the last reset resaon in human readable format.
+
 `ESP.getFreeHeap()` returns the free heap size.
 
 `ESP.getChipId()` returns the ESP8266 chip ID as a 32-bit integer.
@@ -141,10 +143,11 @@ Libraries that don't rely on low-level access to AVR registers should work well.
 - [DallasTemperature](https://github.com/milesburton/Arduino-Temperature-Control-Library.git)
 - [DHT-sensor-library](https://github.com/adafruit/DHT-sensor-library) - Arduino library for the DHT11/DHT22 temperature and humidity sensors. Download latest v1.1.1 library and no changes are necessary.  Older versions should initialize DHT as follows: `DHT dht(DHTPIN, DHTTYPE, 15)`
 - [NeoPixel](https://github.com/adafruit/Adafruit_NeoPixel) - Adafruit's NeoPixel library, now with support for the ESP8266 (use version 1.0.2 or higher from Arduino's library manager).
-- [NeoPixelBus](https://github.com/Makuna/NeoPixelBus) - Arduino NeoPixel library compatible with ESP8266. Use the "NeoPixelAnimator" branch for ESP8266 to get HSL color support and more.
+- [NeoPixelBus](https://github.com/Makuna/NeoPixelBus) - Arduino NeoPixel library compatible with ESP8266. Use the "DmaDriven" or "UartDriven" branches for ESP8266. Includes HSL color support and more.
 - [PubSubClient](https://github.com/Imroy/pubsubclient) - MQTT library by @Imroy.
 - [RTC](https://github.com/Makuna/Rtc) - Arduino Library for Ds1307 & Ds3231 compatible with ESP8266.
 - [Souliss, Smart Home](https://github.com/souliss/souliss) - Framework for Smart Home based on Arduino, Android and openHAB.
 - [ST7735](https://github.com/nzmichaelh/Adafruit-ST7735-Library) - Adafruit's ST7735 library modified to be compatible with ESP8266.  Just make sure to modify the pins in the examples as they are still AVR specific.
+- [Task](https://github.com/Makuna/Task) - Arduino Nonpreemptive multitasking library.  While similiar to the included Ticker library in the functionality provided, this library was meant for cross Arduino compatibility.
 - [UTFT-ESP8266](https://github.com/gnulabis/UTFT-ESP8266) - UTFT display library with support for ESP8266. Only serial interface (SPI) displays are supported for now (no 8-bit parallel mode, etc). Also includes support for the hardware SPI controller of the ESP8266.
 - [WiFiManager](https://github.com/tzapu/WiFiManager) - WiFi Connection manager with web captive portal. If it can't connect, it starts AP mode and a configuration portal so you can choose and enter WiFi credentials.

tools/espota.py

@@ -92,10 +92,10 @@ def serve(remoteAddr, localAddr, remotePort, localPort, password, filename, comm
   logging.info('Sending invitation to: %s', remoteAddr)
   sock2 = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
   remote_address = (remoteAddr, int(remotePort))
-  sent = sock2.sendto(message, remote_address)
+  sent = sock2.sendto(message.encode(), remote_address)
   sock2.settimeout(10)
   try:
-    data = sock2.recv(37)
+    data = sock2.recv(37).decode()
   except:
     logging.error('No Answer')
     sock2.close()
@@ -111,10 +111,10 @@ def serve(remoteAddr, localAddr, remotePort, localPort, password, filename, comm
       sys.stderr.write('Authenticating...')
       sys.stderr.flush()
       message = '%d %s %s\n' % (AUTH, cnonce, result)
-      sock2.sendto(message, remote_address)
+      sock2.sendto(message.encode(), remote_address)
       sock2.settimeout(10)
       try:
-        data = sock2.recv(32)
+        data = sock2.recv(32).decode()
       except:
         sys.stderr.write('FAIL\n')
         logging.error('No Answer to our Authentication')
@@ -173,7 +173,7 @@ def serve(remoteAddr, localAddr, remotePort, localPort, password, filename, comm
     logging.info('Waiting for result...')
     try:
       connection.settimeout(60)
-      data = connection.recv(32)
+      data = connection.recv(32).decode()
       logging.info('Result: %s' ,data)
       connection.close()
       f.close()

tools/sdk/include/user_interface.h

@@ -23,13 +23,13 @@
 #endif
 
 enum rst_reason {
-	REASON_DEFAULT_RST		= 0,
+	REASON_DEFAULT_RST		= 0,	/* normal startup by power on */
-	REASON_WDT_RST			= 1,
+	REASON_WDT_RST			= 1,	/* hardware watch dog reset */
-	REASON_EXCEPTION_RST	= 2,
+	REASON_EXCEPTION_RST	= 2,	/* exception reset, GPIO status won’t change */
-	REASON_SOFT_WDT_RST   	= 3,
+	REASON_SOFT_WDT_RST   	= 3,	/* software watch dog reset, GPIO status won’t change */
-	REASON_SOFT_RESTART 	= 4,
+	REASON_SOFT_RESTART 	= 4,	/* software restart ,system_restart , GPIO status won’t change */
-	REASON_DEEP_SLEEP_AWAKE	= 5,
+	REASON_DEEP_SLEEP_AWAKE	= 5,	/* wake up from deep-sleep */
-	REASON_EXT_SYS_RST      = 6
+	REASON_EXT_SYS_RST      = 6		/* external system reset */
 };
 
 struct rst_info{