串口回环测试

#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/ledc.h"
#include "esp_err.h"
#include "string.h"
#include "esp_log.h"
#include "freertos/queue.h"
#include "driver/uart.h"

#define LEDC_TIMER              LEDC_TIMER_0            //LEDC定时器
#define LEDC_MODE               LEDC_LOW_SPEED_MODE     //LEDC的速度模式
#define LEDC_OUTPUT_IO          (12)                     //LEDC绑定引脚
#define LEDC_CHANNEL            LEDC_CHANNEL_0          //LEDC通道
#define LEDC_DUTY_RES           LEDC_TIMER_13_BIT       //LEDC占空比分辨率
#define LEDC_DUTY               (4095)                  //LEDC占空比
#define LEDC_FREQUENCY          (5000)                  //LEDC频率 5 kHz

static void example_ledc_init(void)
{
    //LEDC定时器配置
    ledc_timer_config_t ledc_timer = {
        .speed_mode       = LEDC_MODE,                  //设置定时器低速模式           
        .timer_num        = LEDC_TIMER,                 //设置定时器0  
        .duty_resolution  = LEDC_DUTY_RES,              //设置定时器分辨率 13位
        .freq_hz          = LEDC_FREQUENCY,             //设置定时器频率 5kHz
        .clk_cfg          = LEDC_AUTO_CLK               //设置定时器时钟选择
    };  
    ESP_ERROR_CHECK(ledc_timer_config(&ledc_timer));    //设置定时器配置

    //配置LEDC通道
    ledc_channel_config_t ledc_channel = {                          
        .speed_mode     = LEDC_MODE,                    //设置通道模式低速模式
        .channel        = LEDC_CHANNEL,                 //设置LEDC通道0
        .timer_sel      = LEDC_TIMER,                   //设置LEDC定时器
        .intr_type      = LEDC_INTR_DISABLE,            //设置LEDC中断类型       
        .gpio_num       = LEDC_OUTPUT_IO,               //设置LEDCGPIO引脚   
        .duty           = 0, // Set duty to 0%          //设置占空比
        .hpoint         = 0                             //LEDC通道hpoint值
    };
    ESP_ERROR_CHECK(ledc_channel_config(&ledc_channel));//配置LEDC通道参数
}

void cpu_task(void *ptr){
    uint8_t cpu_info[400];
    while (1)
    {
        memset(cpu_info,0,400);
        vTaskList((char *)&cpu_info);
        printf("%s",cpu_info);
        printf("--------------\r\n");
        memset(cpu_info,0,400);
        vTaskGetRunTimeStats((char*)&cpu_info);
        printf("%s",cpu_info);
        printf("--------------\r\n");

        vTaskDelay(5000/portTICK_PERIOD_MS);
    }
    
}

QueueHandle_t test_queue_handle = NULL;
void test_queue(){
        test_queue_handle = xQueueCreate(20,50);
        if(test_queue_handle!=NULL){
            ESP_LOGI("YCP","创建成功");
        }else{
            ESP_LOGI("YCP","空间不足");
        }
}

char *str = "消息队列发送测试";
void test_queue_send(void *ptr){
    while (1){
        xQueueSend(test_queue_handle,(void *)str,0);
        vTaskDelay(1000/portTICK_PERIOD_MS);
    }
}
void test_queue_receive(void *ptr){
    char queue_receive[50];
    while (1){
        int ret = xQueueReceive(test_queue_handle,(void *)queue_receive,500);
        if(ret){
            ESP_LOGE("消息队列接收","%s",queue_receive);
        }else{
            ESP_LOGE("消息队列接收","没收到");
        }
        vTaskDelay(1000/portTICK_PERIOD_MS);
    }
}

void uart_task(void *ptr){
    int intr_alloc_flags = 0;
    #if CONFIG_UART_ISR_IN_IRAM
    intr_alloc_flags = ESP_INTR_FLAG_IRAM;
    #endif

    uart_driver_install(
    UART_NUM_0,     //UART 编号
    1024,     //Rx 缓冲区大小
    0,     //Tx 缓冲区大小
    0,             //事件队列长度（可以不要，此参数填 0，然后下一个参数填NULL）
    NULL,     //(QueueHandle_t*)接受被创建的句柄的变量指针，类型为FreeRTOS的队列
    intr_alloc_flags                //中断分配标志，这里写 0 表示不想分配中断
);
    uint8_t *data = (uint8_t *)malloc(1024*8);//活动内存
    while(1){
        int len = uart_read_bytes(UART_NUM_0,data,1024,500/portTICK_PERIOD_MS);
        uart_write_bytes(UART_NUM_0,data,len);
    }
}
void app_main(void)
{
    test_queue();
    // 配置LEDC外设
    example_ledc_init();
    // 设置占空比(LEDC的速度模式,LEDC通道,4095+1) 50% 2^13 = 8192  4096即占一半，占空比50%
    ESP_ERROR_CHECK(ledc_set_duty(LEDC_MODE, LEDC_CHANNEL, LEDC_DUTY));
    // 更新占空比
    ESP_ERROR_CHECK(ledc_update_duty(LEDC_MODE, LEDC_CHANNEL));
   /*  xTaskCreate(cpu_task,"cpu_task_name",4096,NULL,1,NULL);
    xTaskCreate(test_queue_send,"test_queue_send_name",4096,NULL,1,NULL);
    xTaskCreate(test_queue_receive,"test_queue_receive_name",4096,NULL,1,NULL); */
    xTaskCreate(uart_task,"uart_task_name",4096,NULL,1,NULL); 

}