自主设置串口并测试

#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)
{
    const uart_config_t uart_config = {
        .baud_rate = 9600,                     /*!< UART baud rate*/
        .data_bits = UART_DATA_8_BITS,         /*!< UART byte size*/
        .parity = UART_PARITY_DISABLE,         /*!< UART parity mode*/
        .stop_bits = UART_STOP_BITS_1,         /*!< UART stop bits*/
        .flow_ctrl = UART_HW_FLOWCTRL_DISABLE, /*!< UART HW flow control mode (cts/rts)*/
        // uint8_t rx_flow_ctrl_thresh;        /*!< UART HW RTS threshold*/
        .source_clk = UART_SCLK_DEFAULT, /*!< UART source clock selection */
    };
    int intr_alloc_flags = 0;
#if CONFIG_UART_ISR_IN_IRAM
    intr_alloc_flags = ESP_INTR_FLAG_IRAM;
#endif
    uart_param_config(UART_NUM_1, &uart_config);
    uart_driver_install(
        UART_NUM_1,      // 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
    );
    uart_set_pin(UART_NUM_1, 21, 20, -1, -1);
    uint8_t *data = (uint8_t *)malloc(1024 * 8); // 活动内存
    while (1)
    {
        int len = uart_read_bytes(UART_NUM_1, data, 1024, 500 / portTICK_PERIOD_MS);
        uart_write_bytes(UART_NUM_1, 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);
}