Author | shaniadolphin |
---|---|
349948204@qq.com |
获取git工程
mkdir micropython
cd micropython
git clone https://github.com/micropython/micropython.git
git submodule update --init
运行的结果如下:
dolphin@DESKTOP-DR5OKOG:/mnt/h/proj/micropython$ cd micropython/
dolphin@DESKTOP-DR5OKOG:/mnt/h/proj/micropython/micropython$ git submodule update --init
Submodule 'lib/axtls' (https://github.com/pfalcon/axtls) registered for path 'lib/axtls'
Submodule 'lib/berkeley-db-1.xx' (https://github.com/pfalcon/berkeley-db-1.xx) registered for path 'lib/berkeley-db-1.xx'
Submodule 'lib/libffi' (https://github.com/atgreen/libffi) registered for path 'lib/libffi'
Submodule 'lib/lwip' (https://git.savannah.gnu.org/r/lwip.git) registered for path 'lib/lwip'
Submodule 'lib/nrfx' (https://github.com/NordicSemiconductor/nrfx.git) registered for path 'lib/nrfx'
Submodule 'lib/stm32lib' (https://github.com/micropython/stm32lib) registered for path 'lib/stm32lib'
Cloning into '/mnt/h/proj/micropython/micropython/lib/axtls'...
Cloning into '/mnt/h/proj/micropython/micropython/lib/berkeley-db-1.xx'...
Cloning into '/mnt/h/proj/micropython/micropython/lib/libffi'...
Cloning into '/mnt/h/proj/micropython/micropython/lib/lwip'...
GIT仓库里的主要组件:
- py/ -- Python核心应用,包括编译器,runtime和核心库。
- mpy-cross/ -- MicroPython交叉编译器,用于将脚本转换成预编译的字节码。
- ports/unix/ -- 运行在UNIX上的MyPython版本。
- ports/stm32/ -- 运行在PyBoard(使用ST Cube HAL驱动)和类似的STM32板上的MicroPython版本。
- ports/esp32/ -- 运行在Espressif的ESP32 SoC上的MicroPython版本。
- ports/nrf/ -- 运行在Nordic的NRF 51和NFR52 MCU上的MicroPython版本。
- ports/minimal/ -- 最小的MicroPython接口,用于将MicroPython移植到另一个MCU。
- tests/ -- 测试框架和测试脚本。
- docs/ -- 用户文档。
- extmod/ -- 附加(非内核)C模块。
- tools/ -- 各种工具,包括PyBoard.Py模块。
- examples/ -- 一些Python脚本示例。
安装gcc-arm-embedded
Build instructions
在为目标板编译固件之前,必须编译MicroPython交叉编译器,它用于将一些内置的脚本预编译为字节码。在主机上编译交叉编译器:
dolphin@DESKTOP-DR5OKOG:/mnt/h/proj/micropython/micropython$ make -C mpy-cross
make: Entering directory '/mnt/h/proj/micropython/micropython/mpy-cross'
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
mkdir -p build/genhdr
GEN build/genhdr/mpversion.h
GEN build/genhdr/qstr.i.last
GEN build/genhdr/qstr.split
GEN build/genhdr/qstrdefs.collected.h
QSTR updated
GEN build/genhdr/qstrdefs.generated.h
mkdir -p build/py/
CC ../py/mpstate.c
编译完后生成mpy-cross:
LINK mpy-cross
text data bss dec hex filename
139992 12976 864 153832 258e8 mpy-cross
make: Leaving directory '/mnt/h/proj/micropython/micropython/mpy-cross'
编译PYBV11
STM32的目标板需要ARM编译器arm-none-eabi-gcc:
sudo add-apt-repository ppa:team-gcc-arm-embedded/ppa
sudo apt-get update
sudo apt-get install gcc-arm-embedded
安装好编译器后即可进行编译,可以通过参数BOARD= 来指定目标板,比如make BOARD=PYBV11
、make BOARD=STM32F4DISC
:
dolphin@DESKTOP-DR5OKOG:/mnt/h/proj/micropython/micropython$ cd ports/stm32
dolphin@DESKTOP-DR5OKOG:/mnt/h/proj/micropython/micropython/ports/stm32$ make BOARD=PYBV11
Use make V=1 or set BUILD_VERBOSE in your environment to increase build verbosity.
mkdir -p build-PYBV11/genhdr
GEN build-PYBV11/genhdr/pins.h
GEN stmconst build-PYBV11/modstm_qstr.h
GEN build-PYBV11/genhdr/pybcdc.inf
GEN build-PYBV11/genhdr/pybcdc_inf.h
GEN build-PYBV11/genhdr/pllfreqtable.h
GEN build-PYBV11/genhdr/mpversion.h
GEN build-PYBV11/genhdr/qstr.i.last
编译生成firmware,随后便可通过windows端的JFLASH或者DFU工具将固件烧录到目标板中:
LINK build-PYBV11/firmware.elf
text data bss dec hex filename
331204 36 28028 359268 57b64 build-PYBV11/firmware.elf
GEN build-PYBV11/firmware.dfu
GEN build-PYBV11/firmware.hex
也可通过将PYBV11的P1/DFU引脚连接到3.3V,按复位按键重启,进入DFU模式来更新(非win10的UBUNTU子系统中):
make BOARD=PYBV11 deploy
编译ESP32
ESP32的esp-idf在github仓库中的地址:https://github.com/espressif/esp-idf。在本地创建esp-idf所在的目录,比如/mnt/h/proj/,使用git clone将esp-idf下载到该目录中:
cd /mnt/h/proj/
git clone --recursive https://github.com/espressif/esp-idf.git
更新esp-idf中的子模块:
#Do not miss the --recursive option. If you have already cloned ESP-IDF without this option, run another command to get all the submodules:
cd ~/esp/esp-idf
git submodule update --init --recursive
由于micropython仅支持hash值30545f4cccec7460634b656d278782dd7151098e
的版本,所以需要切换到这个版本,否则会丢失一些定义,造成编译失败。
git reset 30545f4cccec7460634b656d278782dd7151098e --hard
进入esp-idf的目录,通过以下指令安装requirements.txt中的Python包。
pip3 install --user -r $IDF_PATH/requirements.txt
注意esp32中的相关文件:
esp-idf
components
docs
examples
make
tools
xtensa-esp32-elf
其中xtensa-esp32-elf是工具链,可以通过官网下载:
- 64-bit Linux:
https://dl.espressif.com/dl/xtensa-esp32-elf-linux64-1.22.0-80-g6c4433a-5.2.0.tar.gz - 32-bit Linux:
https://dl.espressif.com/dl/xtensa-esp32-elf-linux32-1.22.0-80-g6c4433a-5.2.0.tar.gz
下载完后运行tar -xzf
解压到esp-idf目录中。
进入前文下载的micropython的ports/esp32目录,在目录下新建脚本env.sh,将esp-idf及xtensa-esp32-elf所在的路径写入脚本中,在命令行中运行source env.sh
设置编译所需的环境变量:
if ! echo "${PATH}" | grep -q "xtensa-esp32-elf"; then
export PATH="/mnt/h/proj/esp-idf/xtensa-esp32-elf/bin:$PATH"
fi
export IDF_PATH=/mnt/h/proj/esp-idf
export CROSS_COMPILE=xtensa-esp32-elf-
再在该目录下新建makefie文档,在文档中写入以下内容:
#PORT = /dev/ttyUSB0
#FLASH_MODE = qio
#FLASH_SIZE = 4MB
#CROSS_COMPILE = xtensa-esp32-elf-
CONFIG_SPIRAM_SUPPORT = 1
include Makefile
通过以下命令编译micropython
$ cd ports/esp32
$ make
编译生成固件的有关信息:
LINK build/application.elf
text data bss dec hex filename
787097 192024 74368 1053489 101331 build/application.elf
Create build/application.bin
esptool.py v2.5.1
Create build/firmware.bin
bootloader 17808
partitions 3072
application 979264
total 1044800
esp32所需要的bootloader.bin、partitions.bin和application.bin生成在build目录中。
将esp32连接到电脑的串口上,串口的端口,FLASH的设置预定义在Makefile中,也可以通过makefile重新定义。
在烧录前请用以下命令擦除FLASH:
$ make erase
如果要将micropython固件写入esp32,运行以下指令,通过esp-idf中的esptool.py脚本下载固件:
$ make deploy
以下是micropython连接WiFi的一个应用示例:
def wlan_connect(ssid='MYSSID', password='MYPASS'):
import network
wlan = network.WLAN(network.STA_IF)
if not wlan.active() or not wlan.isconnected():
wlan.active(True)
print('connecting to:', ssid)
wlan.connect(ssid, password)
while not wlan.isconnected():
pass
print('network config:', wlan.ifconfig())
参考文档
# | 链接地址 | 文档名称 |
---|---|---|
1 | http://www.micropython.org/ |
官网资料 |
2 | http://www.micropython.org.cn/bbs/ |
官方社区 |