Re: uart_write_bytes(1193): uart driver error Posted:Tue Aug 11, 2020 10:57 am byESP_Sprite The only line that I see that outputs that is UART_CHECK((p_uart_obj[uart_num] != NULL), "uart driver error", (-1)); Are you sure installation of the UART driver succeeded?
uart_driver_install(uart_num , uart_buffer_size, uart_buffer_size, 10, &uart_queue, 0)); // uart_isr_free(uart_num ); //释放中断服务函数 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 2、发送示例: char* test_str = "Hel...
(err == ESP_ERR_NOT_FOUND) esp_err_t err = uart_driver_install(UART_NUM_1, rx_buf, tx_buf, q_size, &queue, ESP_INTR_FLAG_HIGH); if (err == ESP_ERR_NOT_FOUND) esp_err_t err = uart_driver_install(UART_NUM_1, rx_buf, tx_buf, q_size, &queue, ESP_INTR_FLAG_SHARED);...
// 安装串口驱动 串口编号、接收buf、发送buf、事件队列、分配中断的标志 ESP_ERROR_CHECK(uart_driver_install(uart_num, BUF_SIZE * 2, 0, 0, NULL, 0)); // 配置串口参数 串口编号、配置结构体参数 ESP_ERROR_CHECK(uart_param_config(uart_num, &uart_config)); ESP_LOGI(TAG, "UART set pins, ...
static void echo_task(void *arg) { /* Configure parameters of an UART driver, * communication pins and install the driver */ uart_config_t uart_config = { .baud_rate = ECHO_UART_BAUD_RATE, .data_bits = UART_DATA_8_BITS, .parity = UART_PARITY_DISABLE, .stop_bits = UART_STOP_BIT...
4. 安装驱动程序uart_driver_install()参数：Tx 环形缓冲区的大小Rx 环形缓冲区的大小事件队列句柄和大小分配中断的标志示例：// Setup UART buffered IO with event queueconst int uart_buffer_size = (1024 * 2);QueueHandle_t uart_queue;// Install UART driver using an event queue hereESP_ERROR_CHECK...
// Set UART pins(TX: IO16 (UART2 default), RX: IO17 (UART2 default), RTS: IO18, CTS: IO19) ESP_ERROR_CHECK(uart_set_pin(UART_NUM_2, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE, 18, 19)); 驱动程序安装 完成驱动程序配置后,我们可以通过调用 uart_driver_install()来安装 UART 驱动....
该功能将为UART驱动程序分配所需的内部资源。 // Setup UART buffered IO with event queueconstintuart_buffer_size=(1024*2);QueueHandle_t uart_queue;// Install UART driver using an event queue hereESP_ERROR_CHECK(uart_driver_install(UART_NUM_2,uart_buffer_size,\ ...
#include "driver/uart.h" static const char *TAG = "MQTT_EXAMPLE"; #define EX_UART_NUM UART_NUM_0 #define PATTERN_CHR_NUM (3) /*!< Set the number of consecutive and identical characters received by receiver which defines a UART pattern*/ ...
UART驱动使用的是CP210x下载地址:CP210x USB to UART Bridge VCP Drivers - Silicon Labs (silabs.com) JTAG驱动使用的是乐鑫官方驱动下载地址:Configure ESP32-S3 Built-in JTAG Interface - ESP32-S3 - — ESP-IDF 编程指南 latest 文档 (espressif.com) ...