ESP8266 RTOS SDK开发

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ESP8266 RTOS SDK开发

目录

• ESP8266 RTOS SDK开发
  • 一、源码RTOS SDK包的下载和编译
  • 二、固件烧录
    • 1.管脚定义
  • 三、程序例程
    • ## 1.PWM设置
  • 连接MQTT

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一、源码RTOS SDK包的下载和编译

git clone  https://gitee.com/Taury/ESP8266_RTOS_SDK.git
修改.gitmodules文件
[submodule "components/json/cJSON"]
        path = components/json/cJSON
        url = ../../william_william/cJSON.git

[submodule "components/mbedtls/mbedtls"]
        path = components/mbedtls/mbedtls
        url = ../../william_william/mbedtls.git

[submodule "components/lwip/lwip"]
        path = components/lwip/lwip
        url = ../../william_william/esp-lwip.git

[submodule "components/mqtt/esp-mqtt"]
        path = components/mqtt/esp-mqtt
        url = ../../william_william/esp-mqtt.git
更新子模块
git submodule update --init --recursive

二、固件烧录

1.管脚定义

模式	CH_PD(EN)	RST	GPIO15	GPIO0	GPIO2	TXD0
下载模式	高	高	低	低	高	高
运行模式	高	高	低	高	高	高
测试模式	高	高	-	-	-	低

注：GPIO6～GPIO11被用于连接开发板的闪存（Flash Memory）因此建议不要使用GPIO6～GPIO11。请谨慎使用GPIO10，请勿使用GPIO9。（IO2 log调试默认波特率74880）

三、程序例程

## 1.PWM设置

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

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"

#include "esp_log.h"
#include "esp_system.h"
#include "esp_err.h"

#include "esp8266/gpio_register.h"
#include "esp8266/pin_mux_register.h"

#include "driver/pwm.h"

#define PWM_0_OUT_IO_NUM 15

static const char *TAG = "main";

// pwm pin number
const uint32_t pin_num[1] = {PWM_0_OUT_IO_NUM};

// phase table, delay = (phase[x]/360)*PERIOD
float phase[1] = {0};

void buzzer_freq_set(uint32_t freq)
{
    uint32_t period = 1000000 / freq;
    uint32_t duty   = period / 2;

    pwm_set_period(period);
    pwm_set_duty(0, duty);
    pwm_start();
}

void app_main()
{
    uint32_t pwm_period = 1000;    // 1kHz
    uint32_t pwm_duty   = 500;

    ESP_LOGI(TAG, "M.Y.Dodo\n");
    pwm_init(pwm_period, &pwm_duty, 1, pin_num);
    // pwm_set_phases(phase);
    pwm_start();

    uint32_t freq = 100;
    buzzer_freq_set(freq);

    int16_t count = 0;

    while (1) {
        count++;
        if (count == 3) {
            count = 0;
            freq += 100;
            buzzer_freq_set(freq);
        }

        vTaskDelay(1000 / portTICK_RATE_MS);
    }
}

连接MQTT