Examples of uart commnad line? (lags during parcing uart command)

[newsettler_AI]

Hi,

are there any ready examples of uart command line? (send one command from uart-usb converter and esp32 sends responce with some data).

I have wrote some code, based on this example:
https://github.com/espressif/esp-idf/t ... art_events

But its hanging and need 25-35 ms to proceed command.
Is there any ways to achieve ~1ms response?
I don't see where problem is.
Here is my code.

app-main:

Code: Select all

void app_main()
{
    esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
    esp_bt_controller_init(&bt_cfg);
    esp_bt_controller_enable(ESP_BT_MODE_BTDM);

    command_uart_init();  // UART add

    gattc_client_test();

    data_buf_init();

    do{
        if(xQueueReceive(command_uart_queue, (void * )&event, (portTickType)portMAX_DELAY))
        {
            ESP_LOGI(TAG, "uart event type: %d\n", event.type);
            if(event.type == (UART_FIFO_OVF || UART_BUFFER_FULL))
            {
                uart_flush(COMMAND_UART);
            }
            uart_command_handler();
        }
        uart_data_handler();
    } while(1);
}

uart initialisation:

Code: Select all

static QueueHandle_t command_uart_queue;
void command_uart_init(void)
{
    const int uart_num = COMMAND_UART;
    uart_config_t uart_config = {
        .baud_rate = 9600,
        .data_bits = UART_DATA_8_BITS,
        .parity = UART_PARITY_DISABLE,
        .stop_bits = UART_STOP_BITS_1,
        .flow_ctrl = UART_HW_FLOWCTRL_DISABLE,
        .rx_flow_ctrl_thresh = 122,
    };
    uart_param_config(uart_num, &uart_config);
    uart_set_pin(uart_num, CMD_PIN_TX, CMD_PIN_RX, CMD_PIN_RTS, CMD_PIN_CTS);
    uart_driver_install(uart_num, 500, 500, 1, &command_uart_queue, 0);
    uart_write_bytes(COMMAND_UART,"UART_OK\r", (sizeof("UART_OK\r")-1));
}

command handler (there are 2 commands now)

Code: Select all

char uart_command_handler(void)
{
    uint8_t* data = (uint8_t*) malloc(BUF_SIZE);
    char uart_data_buff[BUF_SIZE];
    int len = uart_read_bytes(COMMAND_UART, data, BUF_SIZE, 5 / portTICK_RATE_MS); 
	if (len == 0)
	{
		free(data);
		data = NULL;
		return 0;
	}

	if(len > 0)
	{
	   do{
			memcpy(uart_data_buff, (char*)data, len);
			if ( strstr(uart_data_buff, DEVICE_PING_REQ) !=0 )								// device is pinging
			{
				ping_cnt++;
				uart_write_bytes(COMMAND_UART,SENSOR_PING_ANS, strlen(SENSOR_PING_ANS));  	// pong answer

				free(data);
				data = NULL;
				return 1;
			}

			if ( strstr(uart_data_buff, DEVICE_DATA_REQ) !=0 )								// device request data
			{
				data_cnt++;
			    uart_write_bytes(COMMAND_UART,DATA_FOR_DEVICE, strlen(DATA_FOR_DEVICE));  // send data to device

				free(data);
				data = NULL;
				return 1;
			}

			free(data);
			data = NULL;
			return 0;

		} while(1);
	}

   free(data);
   data = NULL;
   return 0;
}

Regards