.校验控制-uart_set_parity(),从uart_parity_t中选择。 .停止位-uart_set_stop_bits(),从uart_stop_bits_t中选择。 .硬件流控模式-uart_set_hw_flow_ctrl(),从uart_hw_flowcontrol_t中选择。 .通讯模式-uart_set_mode()从uart_mode_t中选择。 配置举例: const int uart_num = UART_NUM_2; uart_...
ESP32具备三个串口:UART_NUM_0、UART_NUM_1及UART_NUM_2,它们的引脚均可进行重新映射配置。 其中,UART_NUM_0主要用于固件的烧写,同时负责调试信息的LOG输出功能。我们选择使用UART_NUM_2来与HT1818Z3G5L模块进行连接。具体操作上,我们将UART_NUM_2的TX2与RX2分别映射至GPIO12和GPIO16,与HT1818Z3G5L的RX及TX...
.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...
uart_types.h文件中的内容基本上实现的是一些串口协议的设置结构体 AI检测代码解析 // UART端口号,取值为UART_NUM_0 ~ (UART_NUM_MAX -1)。 typedef int uart_port_t; // UART模式选择 typedef enum { UART_MODE_UART = 0x00, /*!< mode:普通UART模式*/ UART_MODE_RS485_HALF_DUPLEX = 0x...
应用程序参考读写缓冲区即可进行UART通信。（1）发送数据 3.5.1.1uart_write_bytes()函数 写入缓冲区，空间不足时会阻塞，示例代码：// Write data to UART.char* test_str = "This is a test string.\n";uart_write_bytes(uart_num, (const char*)test_str, strlen(test_str));3.5.1.2uart_...
.source_clk = UART_SCLK_APB, }; uart_param_config(UART_NUM_1, &uart_conf); 2、引脚绑定 设置UART使用哪几个引脚 esp_err_tuart_set_pin(uart_port_tuart_num,inttx_io_num,intrx_io_num,intrts_io_num,intcts_io_num);// 参数 :uart_num:串口编号 可查看uart.h,进行选择// tx_io_num:...
uart_config_t uart_config = { .baud_rate = 115200, .data_bits = UART_DATA_8_BITS, .parity = UART_PARITY_DISABLE, .stop_bits = UART_STOP_BITS_1, .flow_ctrl = UART_HW_FLOWCTRL_DISABLE, };//Set UART parameters uart_param_config(UART_NUM_2, &uart_config); ...
在使用ESP32-WROOM-32的串口2时，需要注意以下几点：1. 确保你已经将UART_NUM0更改为UART_NUM2。在...
1 void uart_evt_test() 2 { 3 int uart_num = UART_NUM_0; 4 uart_config_t uart_config = { 5 .baud_rate = 115200, 6 .data_bits = UART_DATA_8_BITS, 7 .parity = UART_PARITY_DISABLE, 8 .stop_bits = UART_STOP_BITS_1, 9 .flow_ctrl = UART_HW_FLOWCTRL_DISABLE, 10 .rx_fl...
参数:uart_num:UART端口数目,最大端口数目是UART_NUM_MAX-1 esp_err_t uart_driver_delete(uart_port_t uart_num) 说明:卸载UART驱动 返回:ESP_OK 成功 ESP_FAIL 参数错误 参数:uart_num:UART端口数,最大端口数是UART_NUM_MAX-1 esp_err_t uart_set_pin(uart_port_t uart_num, int tx_io_num, ...