文件构成

demo.c应用代码程序 CMakeLists.txt为支持idf.py应用所需文件 component将函数入口定位成app_main() Makefile工程文件

Makefile

PROJECT_NAME := esp32s2_demo
include $(IDF_PATH)/make/project.mk

CMakeLists.txt

从任意例程中复制一个更改project(esp32s2_demo)

# The following lines of boilerplate have to be in your projects CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)

include($ENV{
          
   IDF_PATH}/tools/cmake/project.cmake)
project(esp32s2_demo)

main-CMakeLists.txt

从任意例程中复制一个更改project(esp32s2_demo)

idf_component_register(SRCS "demo.c"
                    INCLUDE_DIRS ".")

component.mk

虽然这个文件都是注释,但是没了该文件。函数入口则不是app_main编译时会出错

#
# "main" pseudo-component makefile.
#
# (Uses default behaviour of compiling all source files in directory, adding include to include path.)

demo.c

hello world示例代码

#include <stdio.h>
#include <string.h>

void app_main(void)
{
          
   
    printf("hello world
");
}

下载程序

下载程序测试

idf.py支持

. /home/ases/esp/esp-idf/export.sh

目标芯片设置

idf.py set-target esp32s2

项目配置

输入下面命令后直接按q退出暂时不做其他配置，会发现文件中多了一个sdkconfig文件

idf.py menuconfig

编译

编译程序，会多出build文件。

idf.py build

上传程序

按一下复位键，后运行上传代码程序

idf.py -p /dev/ttyUSB0 flash

查看串口信息

idf.py monitor