const int uart_num = UART_NUM_2;uart_config_t uart_config = { .baud_rate = 115200, .date_bits = UART_DATA_8_BITS, .parity = UART_PARITY_DISABLE, .stop_bits = UART_STOP_BITS_1, .flow_ctrl = UART_HW_FLOWCTRL_CTS_RTS, .rx_flow_ctrl_thress = 122,};// Con...
1. uart_config_t结构体和设置参数函数uart_param_config() 用来初始化串口使用。 /** * @brief UART configuration parameters for uart_param_config function */ typedef struct { // 波特率 int baud_rate; /*!< UART baud rate*/ // 字节长度 uart_word_length_t data_bits; /*!< UART byte size...
GPIO口基础说明 MicroPython for ESP32 GPIO主要说明如下: 可以用的IO为0-19, 21-23, 25-27, 32-39; 1和3分别为UART0的TX和RX,即烧写和默认调试用的端口; 6~11不推荐使用,因为这几个口接了烧录程序用的flash; 34~39只能设置为输入模式,并且没有内部上拉电阻; 这个地方说明其实和官方文档有点出入,原因...
} uart_config_t; ESP32总共有三个串口分别是UART_NUM0,UART_NUM1,UART_NUM2。串口0作为软件日志打印接口,其他串口可以为我们所用,比较灵活的是 所有串口的IO都可以自由设置。上面结构体是串口配置结构体包含了串口的波特率,数据长度,奇偶检验,停止位,硬件流控制,还有时钟源。 esp_err_t uart_driver_install(u...
1、uart配置 uart的配置主要是给 uart_config_t 结构体赋值,然后通过uart_param_config函数进行uart设置 以下对uart_config_t 结构体进行说明 typedefstruct{intbaud_rate;//波特率uart_word_length_tdata_bits;//数据位uart_parity_tparity;//奇偶校验位uart_stop_bits_tstop_bits;//停止位uart_hw_flowcontrol...
uart_write_bytes(UART_NUM_0, (const char *) data, len); } } 例程2解析:串口事件处理 1、初始化串口 void Uart0even_Init() { uart_config_t uart_config = { .baud_rate = 115200, .data_bits = UART_DATA_8_BITS, .parity = UART_PARITY_DISABLE, ...
void app_uart_main() { uart_init(); } void uarttest() { uart_write_bytes(UART_NUM_0, " uart0 test OK ", strlen(" uart0 test OK ")); } 启动以后我运行了几个软件timer,clock_timer_handle中定时调用uarttest(): Code: Select all err = esp_timer_create(&ntp_timer_arg, &ntp...
void uart_init(void) { 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 }; uart_param_config(UART_NUM_0, &uart_config); ...
* communication pins and install the driver */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,.source_clk=UART_SCLK_APB,};uart_driver_install(UART_NUM_1,BUF_SIZE*2,...
void uart_dma_example() { uart_config_t uart_config = { .baud_rate = 115200,.data_bits = ...