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setup-windows-compiler-esp8266 [2014/12/29 19:28]
peteben [Visual Studio IDE]
setup-windows-compiler-esp8266 [2018/02/25 03:56]
dcm684 [Toolset installation] Escaped out underscores in paths
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 ===== Visual Studio IDE ===== ===== Visual Studio IDE =====
  
-This document will allow you to develop native ​'C' ​firmware applications for the ESP8266 using Windows. You can setup your development environment using Microsoft ​DevStudio ​IDE. Using the accompanying serial terminal and flash writer application,​ you will be able to edit compile, link flash and run without ever needing to leave the IDE. +This document will allow you to develop native C/C++ firmware applications for the ESP8266 using Windows. You can setup your development environment using Microsoft ​Visual Studio ​IDE. Using the accompanying serial terminal and flash writer application,​ you will be able to edit compile, linkflash and run without ever needing to leave the IDE. You can download [[https://​www.visualstudio.com/​free-developer-offers/​|Microsoft Visual Studio Comunity]] for free. If you want to setup environment manually ​(more controlplease refer to Toolset installation sectionOtherwise ​you can use [[http://bbs.espressif.com/viewtopic.php?f=7&t=3577|ESP8266 Wizard]].
- +
-==== Connecting the board ==== +
- +
- +
-The ESP8266 runs on 3.3V and is NOT 5V TOLERANT, so you cannot just connect it to an ArduinoAs the chip can draw up to 300mA when transmitting,​ you will need a good power supply. If in doubt, use a large capacitor ​(>100uf) to regulate the supply, near the chipFailure to do so will result in instability. +
- +
-Since the firmware is uploaded through the serial interface, ​you will typically ​use a USB to serial adapter. Here is the one I use: +
- +
-[[http://www.ebay.ca/itm/​FT232RL-USB-Serial-TTL-level-5V-3-3V-Module-Converter-Adapter-Arduino-/​181140044590?pt=LH_DefaultDomain_0&hash=item2a2cc9bb2e|FT232RL Adapter]] +
- +
-Make sure you get one that works at 3V or with a 3V/5V switch, like this one. +
- +
-{{ :​esp8266b2.png?​nolink |}} +
-//ESP-01 Hardware connections//​ +
- +
-To get the chip into firmware update mode, the chip needs to be reset while GPIO0 is held low and GPIO2 is held high. The above circuit uses the USB-serial adapter'​s DTR line to pull GPIO0 low and reset the chip via a small capacitor. GPIO0 needs to be held down for about 15ms after reset for the chip to go into firmware update mode. After that, GPIO0 needs to be released, as the bootloader then reconfigures GPIO0 as an output. All of this is handled automatically by the flash tool.+
  
 +You can also use a [[http://​visualgdb.com/​|third-party plugin]] to [[http://​visualgdb.com/​tutorials/​esp8266/​|setup building and debugging automatically]].
  
 ==== Toolset installation ==== ==== Toolset installation ====
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 This particular version of the toolset is designed to work under Windows 7 or 8, 32 or 64bit. ​ This particular version of the toolset is designed to work under Windows 7 or 8, 32 or 64bit. ​
- +You can **[[http://​gnutoolchains.com/​esp8266/​|download]]** ​pre-built ESP8266 toolchain that contains Python and the ESP8266 SDK. Alternatively you can gather the necessary components manually:
-Here is step by step guide:+
  
   * Create a directory to put all your ESP stuff in. I put mine in **E:​\ESP8266**,​ but obviously yours will be different.   * Create a directory to put all your ESP stuff in. I put mine in **E:​\ESP8266**,​ but obviously yours will be different.
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   * You need **[[http://​pyserial.sourceforge.net/​|PySerial]]**.   * You need **[[http://​pyserial.sourceforge.net/​|PySerial]]**.
   * Get **[[http://​www.mingw.org/​|minGW]]**. In the package manager, choose **mingw-developer-toolkit** and **mingw-base**. This will give you **make.exe** and some important utilities, like **mkdir.exe** that the makefiles will need.   * Get **[[http://​www.mingw.org/​|minGW]]**. In the package manager, choose **mingw-developer-toolkit** and **mingw-base**. This will give you **make.exe** and some important utilities, like **mkdir.exe** that the makefiles will need.
-  * Get the **[[https://​github.com/​espressif/​esp_iot_rtos_sdk/​archive/​master.zip|sdk]]**. Install it under your chosen directory. Mine is in **E:​\ESP8266\esp_iot_rtos_sdk-master**. +  * Get the **[[https://​github.com/​espressif/​esp_iot_rtos_sdk/​archive/​master.zip|sdk]]**. Install it under your chosen directory. Mine is in **E:​\ESP8266\esp\_iot\_rtos\_sdk-master**. 
-  * Download the missing libraries for the SDK: **[[https://​github.com/​espressif/​esp_iot_rtos_sdk_lib/​archive/​master.zip|FreeRTOS libraries for SDK]]**. Add them to the **E:​\ESP8266\esp_iot_rtos_sdk-master\lib** directory.+  * Download the missing libraries for the SDK: **[[https://​github.com/​espressif/​esp_iot_rtos_sdk_lib/​archive/​master.zip|FreeRTOS libraries for SDK]]**. Add them to the **E:​\ESP8266\esp\_iot\_rtos\_sdk-master\lib** directory.
   * Get the **[[https://​drive.google.com/​file/​d/​0B1kVUQJ3na10RkhtRDE1UFZBVzg/​view?​usp=sharing|pre-built compiler]]**. Stick it in your chosen directory. Mine is in **E:​\ESP8266\xtensa-lx106-elf**.   * Get the **[[https://​drive.google.com/​file/​d/​0B1kVUQJ3na10RkhtRDE1UFZBVzg/​view?​usp=sharing|pre-built compiler]]**. Stick it in your chosen directory. Mine is in **E:​\ESP8266\xtensa-lx106-elf**.
   * Get the missing xtensa includes for gcc **[[http://​bbs.espressif.com/​viewtopic.php?​f=5&​t=67|here]]**. It is the file **xtensa.tar.bz2**. Extract them into the compiler subdirectory:​ **E:​\ESP8266\xtensa-lx106-elf\xtensa-lx106-elf\include**.   * Get the missing xtensa includes for gcc **[[http://​bbs.espressif.com/​viewtopic.php?​f=5&​t=67|here]]**. It is the file **xtensa.tar.bz2**. Extract them into the compiler subdirectory:​ **E:​\ESP8266\xtensa-lx106-elf\xtensa-lx106-elf\include**.
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   * So in my project setup, in Visual Studio, I use ESPMAKE instead of make.   * So in my project setup, in Visual Studio, I use ESPMAKE instead of make.
-  * Modify the makefile in the xPL_ESP8266 ​project so that it reflects your locations for the tools and sdk. You should be able to compile and flash by simply typing '​make'​ or 'make flash' in the xPL_ESP8266 ​directory.+  * Modify the makefile in the xPL\_ESP8266 ​project so that it reflects your locations for the tools and sdk. You should be able to compile and flash by simply typing '​make'​ or 'make flash' in the xPL\_ESP8266 ​directory.
   * Get the enhanced **[[https://​github.com/​peteben/​ESP-Termie|serial terminal and firmware tool]]**. You need the modified Python tool to flash the chip, **esptool-py.py**. This version is enhanced to reset the chip and bring it into firmware update mode automatically by using DTR. It also connects to Termie, the serial terminal application to share the serial port connection.   * Get the enhanced **[[https://​github.com/​peteben/​ESP-Termie|serial terminal and firmware tool]]**. You need the modified Python tool to flash the chip, **esptool-py.py**. This version is enhanced to reset the chip and bring it into firmware update mode automatically by using DTR. It also connects to Termie, the serial terminal application to share the serial port connection.
   * Compile '​Termie'​ the serial terminal. I modified this program to use a named pipe to communicate with the esptool-py flasher application. Thus it knows when to disconnect from the serial port when you want to flash the chip.   * Compile '​Termie'​ the serial terminal. I modified this program to use a named pipe to communicate with the esptool-py flasher application. Thus it knows when to disconnect from the serial port when you want to flash the chip.
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 By default, all code goes into iram, which is only 32k, so it is easy to overflow that segment by linking in a bunch of stuff from the libraries or from your own code. By default, all code goes into iram, which is only 32k, so it is easy to overflow that segment by linking in a bunch of stuff from the libraries or from your own code.
  
-Use **ICACHE_FLASH_ATTR** on your functions to make sure they go into irom instead.Irom resides off-chip on a 4M flash ROM, thus leaving about 240-440kB for applications. Although the final compiled program appears huge (about 180k in irom, and 28k in iram), most of this is library code that runs the Wifi and IP stacks. The actual user application is something like 8k.+Use **ICACHE_FLASH_ATTR** on your functions to make sure they go into irom instead. Irom resides off-chip on a 4M flash ROM, thus leaving about 240-440kB for applications. Although the final compiled program appears huge (about 180k in irom, and 28k in iram), most of this is library code that runs the Wifi and IP stacks. The actual user application is something like 8k. 
 + 
 +The hardware design shown above also assumes that the switch will remain open at bootup, as GPIO2 needs to be high for the chip to boot normally.  
 ===== Eclipse IDE ===== ===== Eclipse IDE =====
  
 +Looks like this is the best lead for that at this moment:
 +[[http://​www.esp8266.com/​viewtopic.php?​f=9&​t=820|Eclipse IDE for ESP8266]]
 +
 +===== Arduino IDE =====
 + Go to Arduino site and download the IDE 
 +Unzip it wherever ​
 +Go to the ESP8266 libraries and follow the easy install
 +Lots of programms for you to try
  
 +[[http://​www.arduino.cc/​en/​Main/​Software|http://​www.arduino.cc/​en/​Main/​Software]]
 +https://​github.com/​esp8266/​Arduino
setup-windows-compiler-esp8266.txt · Last modified: 2018/02/25 04:12 by dcm684