const int uart_buffer_size = (1024 * 2); QueueHandle_t uart_queue; // Install UART driver using an event queue here ESP_ERROR_CHECK(uart_driver_install(UART_NUM_2, uart_buffer_size, \ uart_buffer_size, 10, &uart
uart_param_config(UART_NUM_0, &uart_config); // 设置UART1使用的TX和RX引脚 uart_set_pin(UART_NUM_0, TX_PIN, RX_PIN, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE); // 安装UART驱动程序,使用默认缓冲区大小 uart_driver_install(UART_NUM_0, BUF_SIZE * 2, BUF_SIZE * 2, 0, NULL, 0);...
esp_err_tuart_driver_install(uart_port_tuart_num,intrx_buffer_size,inttx_buffer_size,intqueue_size, QueueHandle_t *uart_queue,intintr_alloc_flags);// 参数 :uart_num:串口编号 可查看uart.h,进行选择// rx_buffer_size:uart接收数组大小// tx_buffer_size: uart发送数组大小// queue_size: uart...
.data_bits=UART_DATA_8_BITS,.parity=UART_PARITY_DISABLE,.stop_bits=UART_STOP_BITS_1,.flow_ctrl=UART_HW_FLOWCTRL_DISABLE,.source_clk=UART_SCLK_APB,};//Install UART driver, and get the queue.uart_driver_install(EX_UART_NUM,BUF_SIZE*2,BUF_SIZE*2,20,&uart_queue,0);uart_param...
3. 设置通信管脚uart_set_pin() 参数顺序: Tx,Rx,RTS,CTS。 保持不变的参数,使用宏: UART_PIN_NO_CHANGE 使用示例: // 设置TX=IO4, RX=IO5, RTS=IO18, CTS=IO19 ESP_ERROR_CHECK(uart_set_pin(UART_NUM_2, 4, 5, 18, 19)); 4. 安装驱动程序uart_driver_install() 参数: - Tx 环形缓冲...
uart_driver_install(UART_NUM0, BUF_SIZE * 2, BUF_SIZE * 2, 20, &uart_queue, 0); uart_driver_install(UART_NUM1, BUF_SIZE * 2, BUF_SIZE * 2, 20, &uart_queue, 0); 如果不行的话,是否有其他的实现方式? 谢谢 1 post • Page1of1 ...
When I use uart_driver_install with two uart like: uart_driver_install(UART_NUM_0, BUF_SIZE * 2, BUF_SIZE * 2, 20, &uart_queue, 0); uart_driver_install(UART_NUM_1, BUF_SIZE * 2, BUF_SIZE * 2, 20, &uart_queue, 0); can I get uart_num in uart_queue?
= NULL) { xTimerStart(Time_3000_Handle, 0); //开启定时器 } } void UART0_Task_Function(void *arg) { int intr_alloc_flags = 0; #if CONFIG_UART_ISR_IN_IRAM intr_alloc_flags = ESP_INTR_FLAG_IRAM; #endif ESP_ERROR_CHECK(uart_driver_install(UART_NUM_0, 1024, 0, 0, NULL, ...
串行UART,传输速率高达1228.8kbit/s, 帧取决于RS232接口,电压电平取决于提供的管脚电压 本文将介绍ESP32开发板驱动MFRC522 RFID模块,读取RFID卡原始数据、获取RFID卡的UID,并将个人数据添加到RFID卡中。 ESP32开发板与MFRC522模块接线 下图为SPI通信接线图 ...
UART_HW_FLOWCTRL_RTS, // 硬件流控 .rx_flow_ctrl_thresh = 122, // 接收缓冲区阈值 .source_clk = UART_SCLK_DEFAULT, // 时钟源 }; // 安装UART驱动程序并获取队列 uart_driver_install(UART_NUM_0, 4096, 8192, 10,&spp_uart_queue,0); // 设置UART参数 uart_param_co...