esp32编程第一例

#include<stdio.h>
#include"freertos/FreeRtos.h"
#include"freertos/task.h"
#include"esp_system.h"
#include"esp_spi_flash.h"

void app_main()
{
printf("hellow world!\n");//打印字符串
esp_chip_info_t chip_info;//定义芯片信息结构体变量
esp_chip_info(&chip_info);//
printf("cup数量%d,wifi%s%s",chip_info.cores,
(chip_info.features&CHIP_FEATURE_BT)?"/BT":"",
(chip_info.features&CHIP_FEATURE_BLE)?"/BLE":""
);
printf("芯片修订号%d\n",chip_info.revision);
printf("%dMB %s flash\n",spi_flash_get_chip_size()/(1024*10124),
(chip_info.features&CHIP_FEATURE_EMB_FLASH)?"embedded":"external"
);
for(int i=10;i>=0;i--)
{
printf("倒计时%d秒\n",i);
vTaskDelay(1000/portTICK_PERIOD_MS);
}
printf("重启\n");
fflush(stdout);
esp_restart();
}