EventBits_t xEventGroupWaitBits(EventGroupHandle_t xEventGroup, EventBits_t uxBitsToWaitFor, BaseType_t xClearOnExit, BaseType_t xWaitForAllBits, TickType_t xTicksToWait); 1. 3. xEventGroupSetBits() 用于设置一组事件。函数原型如下: EventBits_t xEventGroupSetBits(EventGroupHandle_t xEvent...
8 //Waiting for UART event. 9 if(xQueueReceive(uart0_queue, (void * )&event, (portTickType)portMAX_DELAY)) { 10 ESP_LOGI(TAG, "uart[%d] event:", uart_num); 11 switch(event.type) { 12 //Event of UART receving data 13 /*We'd better handler data event fast, there would be...
#include< freertos/FreeRTOS.h >#include< freertos/queue.h >#include< freertos/task.h >#include< driver/gpio.h >#include< driver/uart.h >#include< esp_log.h >#include< string.h >#defineLOG_EVENT_TAG"uart"QueueHandle_t uart_queue =NULL;#defineRX_BUFF_SIZE 1024#defineUART_PORT UART...
// Setup UART buffered IO with event queueconstintuart_buffer_size=(1024*2);QueueHandle_tuart_queue;// Install UART driver using an event queue hereESP_ERROR_CHECK(uart_driver_install(UART_NUM_2,uart_buffer_size,\uart_buffer_size,10,&uart_queue,0)); 5. 运行UART通信uart_write_bytes()...
uart_get_buffered_data_len(EX_UART_NUM, &buffered_size); ESP_LOGI(TAG, "[UART DATA]: %d, size: %d", event.size, buffered_size); uart_read_bytes(EX_UART_NUM, dtmp, event.size, portMAX_DELAY); blink_led(led_strip, 1, dtmp); uart_flush_input(EX_UART_NUM); break; GeSHi ©...
3.基于我的这种应用需求(接收不定长数据),是推荐直接开uart接收空闲中断还是使用ESP-IDF中已经定义好uart event实现? 如果使用uart接收空闲中断有相关例程吗?\esp-idf-v4.4\components\driver\test\test_uart.c 只有一个发送空闲中断。Andy_Zhou7 Posts: 2 Joined: Sun Feb 20, 2022 12:28 pm Re...
2. struct uart_event_t的timeout_flag的使用：timeout_flag是一个标志位，用于指示是否发生了接收超时...
staticvoiduart_event_task(void*pvParameters){uart_event_t event;for(;;){//阻塞接收串口队列,//这个队列在底层发送,用户只需在应用层接收即可if(xQueueReceive(uart_queue,(void*)&event,(portTickType)portMAX_DELAY)){switch(event.type){//各种串口事件caseUART_DATA:ESP_LOGI(TAG,"[UART DATA]: %d...
static void uart_event_task(void *pvParameters) ... uart_event_t event;size_t buffered_size;uint8_t*dtmp=(uint8_t*)malloc(RD_BUF_SIZE);char*hexstr_data=malloc(RX_BUF_SIZE);BLUFI_INFO("for uart event loop begin:");for(;;){//Waiting for UART event.if(xQueueReceive(uart_queue,...
uart_event_t event; 定义串口事件 size_t buffered_size; uint8_t* dtmp = (uint8_t*) malloc(RD_BUF_SIZE); 开辟接受数据内存 esp_log_level_set(TAG, ESP_LOG_INFO); 设置输出日志等级 Uart0even_Init(); while (1) { 判断串口接受信息队列是否有数据,并保存到事件结构体 ...