esp8266 window7开发环境搭建
最新代码
https://github.com/espressif/ESP8266_RTOS_SDK
安装toolchain
下载msys32
在windows环境下我们需要msys32，在linux不需要
https://dl.espressif.com/dl/esp32_win32_msys2_environment_and_toolchain-20181001.zip
下载8266对应的toolchain
在默认的msys下是没有8266的toolchain的，我们需要下载：
https://dl.espressif.com/dl/xtensa-lx106-elf-gcc8_4_0-esp-2020r3-win32.zip
将解压后的xtensa-lx106-elf放到/msys32/opt/下
安装python环境
# python -m pip install --user -r $IDF_PATH/requirements.txt
Requirement already satisfied: setuptools in g:/msys32/mingw32/lib/python2.7/site-packages (from -r requirements.txt (line 4)) (40.4.3)
Collecting click>=5.0 (from -r requirements.txt (line 8))
Downloading https://files.pythonhosted.org/packages/d2/3d/fa76db83bf75c4f8d338c2fd15c8d33fdd7ad23a9b5e57eb6c5de26b430e/click-7.1.2-py2.py3-none-any.whl (82kB)
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Requirement already satisfied: pyserial>=3.0 in g:/msys32/mingw32/lib/python2.7/site-packages (from -r requirements.txt (line 9)) (3.4)
Requirement already satisfied: future>=0.15.2 in g:/msys32/mingw32/lib/python2.7/site-packages (from -r requirements.txt (line 10)) (0.16.0)
Requirement already satisfied: cryptography>=2.1.4 in g:/msys32/mingw32/lib/python2.7/site-packages (from -r requirements.txt (line 11)) (2.3.1)
Requirement already satisfied: pyparsing<2.4.0,>=2.0.3 in g:/msys32/mingw32/lib/python2.7/site-packages (from -r requirements.txt (line 12)) (2.2.0)
Collecting pyelftools>=0.22 (from -r requirements.txt (line 13))
Using cached https://files.pythonhosted.org/packages/6f/50/3d7729d64bb23393aa4c166af250a6e6f9def40c90bf0e9af3c5ad25b6f7/pyelftools-0.27-py2.py3-none-any.whl
Requirement already satisfied: idna>=2.1 in g:/msys32/mingw32/lib/python2.7/site-packages (from cryptography>=2.1.4->-r requirements.txt (line 11)) (2.7)
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Requirement already satisfied: six>=1.4.1 in g:/msys32/mingw32/lib/python2.7/site-packages (from cryptography>=2.1.4->-r requirements.txt (line 11)) (1.11.0)
Requirement already satisfied: cffi!=1.11.3,>=1.7 in g:/msys32/mingw32/lib/python2.7/site-packages (from cryptography>=2.1.4->-r requirements.txt (line 11)) (1.10.0)
Requirement already satisfied: enum34 in g:/msys32/mingw32/lib/python2.7/site-packages (from cryptography>=2.1.4->-r requirements.txt (line 11)) (1.1.6)
Requirement already satisfied: ipaddress in g:/msys32/mingw32/lib/python2.7/site-packages (from cryptography>=2.1.4->-r requirements.txt (line 11)) (1.0.22)
Requirement already satisfied: pycparser in g:/msys32/mingw32/lib/python2.7/site-packages (from cffi!=1.11.3,>=1.7->cryptography>=2.1.4->-r requirements.txt (line 11)) (2.19)
Installing collected packages: click, pyelftools
Successfully installed click-7.1.2 pyelftools-0.27
编译工程
设置环境变量
因为我们使用的是msys32的虚拟环境，所以我们只要设置msys32的虚拟环境变量即可，不需要设置windows的环境变量。这样正好可以让我们在window系统下同时兼容esp32和esp8266的开发环境。
修改/home/xxx[用户]/.bashrc
新增：
export IDF_PATH=~/esp/ESP8266_RTOS_SDK
export PATH=/opt/xtensa-lx106-elf/bin:$PATH
检验环境变量：
重新打开mingw32.exe，执行
xtensa-lx106-elf-gcc -v
# xtensa-lx106-elf-gcc -v
Using built-in specs.
COLLECT_GCC=G:\msys32\opt\xtensa-lx106-elf\bin\xtensa-lx106-elf-gcc.exe
COLLECT_LTO_WRAPPER=g:/msys32/opt/xtensa-lx106-elf/bin/../libexec/gcc/xtensa-lx106-elf/8.4.0/lto-wrapper.exe
Target: xtensa-lx106-elf
Configured with: /builds/idf/crosstool-NG/.build/HOST-i686-w64-mingw32/xtensa-lx106-elf/src/gcc/configure --build=x86_64-build_pc-linux-gnu --host=i686-host_w64-mingw32 --target=xtensa-lx106-elf --prefix=/builds/idf/crosstool-NG/builds/xtensa-lx106-elf --with-local-prefix=/builds/idf/crosstool-NG/builds/xtensa-lx106-elf/xtensa-lx106-elf --with-headers=/builds/idf/crosstool-NG/builds/xtensa-lx106-elf/xtensa-lx106-elf/include --with-newlib --enable-threads=no --disable-shared --with-pkgversion='crosstool-NG esp-2020r3-49-gd5524c1' --disable-__cxa_atexit --enable-cxx-flags=-ffunction-sections --disable-libgomp --disable-libmudflap --disable-libmpx --disable-libssp --disable-libquadmath --disable-libquadmath-support --with-gmp=/builds/idf/crosstool-NG/.build/HOST-i686-w64-mingw32/xtensa-lx106-elf/buildtools/complibs-host --with-mpfr=/builds/idf/crosstool-NG/.build/HOST-i686-w64-mingw32/xtensa-lx106-elf/buildtools/complibs-host --with-mpc=/builds/idf/crosstool-NG/.build/HOST-i686-w64-mingw32/xtensa-lx106-elf/buildtools/complibs-host --with-isl=/builds/idf/crosstool-NG/.build/HOST-i686-w64-mingw32/xtensa-lx106-elf/buildtools/complibs-host --enable-lto --enable-target-optspace --without-long-double-128 --disable-nls --enable-multiarch --enable-languages=c,c++ --disable-libstdcxx-verbose --enable-threads=posix --enable-libstdcxx-time=yes
Thread model: posix
gcc version 8.4.0 (crosstool-NG esp-2020r3-49-gd5524c1)
下载最新代码
务必git pull，不要zip解压，windows下很多隐藏文件容易出问题
git pull https://github.com/espressif/ESP8266_RTOS_SDK.git
menuconfig
进入需要编译的工程例子目录
make menuconfig
进行必要的配置。为了接下来的下载，我们需要配置串口：Serial flasher config > Default serial port，根据实际的串口来配置。
On Windows, serial ports have names like COM1. On MacOS, they start with /dev/cu.. On Linux, they start with /dev/tty
编译
make
# make
Toolchain path: /opt/xtensa-lx106-elf/bin/xtensa-lx106-elf-gcc
Toolchain version: esp-2020r3-49-gd5524c1
Compiler version: 8.4.0
Python requirements from G:/msys32/home/zcj/esp/ESP8266_RTOS_SDK/requirements.txt are satisfied.
App "wifi_softAP" version: v3.4-28-g08e225dd
To flash all build output, run 'make flash' or:
python /home/zcj/esp/ESP8266_RTOS_SDK/components/esptool_py/esptool/esptool.py --chip esp8266 --port /dev/ttyUSB0 --baud 115200 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_freq 40m --flash_size 2MB 0x0 /home/zcj/esp/ESP8266_RTOS_SDK/examples/wifi/getting_started/softAP/build/bootloader/bootloader.bin 0x10000 /home/zcj/esp/ESP8266_RTOS_SDK/examples/wifi/getting_started/softAP/build/wifi_softAP.bin 0x8000 /home/zcj/esp/ESP8266_RTOS_SDK/examples/wifi/getting_started/softAP/build/partitions_singleapp.bin
编译 & 下载
make flash
