unable to use uart1 and uart2 simultaneously

[ht_main1]

Hi
I am trying to use 2 uart in the same project this is the first time using 2 uarts of ESP32.
i have tried combination of UART0 & UART1 or UART1 & UART2, UART2 & UART0 but no result,
there is a problem when I try to use both UARt components, only one Uart transmit out.
i am unable to diagnose problem, kindly help me in the same

i am providing code snippet

Code: [Select all] [Expand/Collapse]

1.  
2. #define EX_UART_NUM UART_NUM_2
3. #define BUF_SIZE (1024)
4. #define RD_BUF_SIZE (BUF_SIZE)
5. static QueueHandle_t uart0_queue, uart1_queue;
6.  
7. /*-------main()---------*/
8.  
9. esp_log_level_set(TAG, ESP_LOG_INFO);
10.     // Initialize NVS
11.     esp_err_t ret = nvs_flash_init();
12.     if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
13.         ESP_ERROR_CHECK(nvs_flash_erase());
14.         ret = nvs_flash_init();
15.     }
16.     ESP_ERROR_CHECK( ret );
17.  
18.     wifi_scan();
19.  
20.     /* Configure parameters of an UART driver,
21.      * communication pins and install the driver */
22.     uart_config_t uart_config = {
23.         .baud_rate = 115200,
24.         .data_bits = UART_DATA_8_BITS,
25.         .parity = UART_PARITY_DISABLE,
26.         .stop_bits = UART_STOP_BITS_1,
27.         .flow_ctrl = UART_HW_FLOWCTRL_DISABLE
28.     };
29.     uart_param_config(EX_UART_NUM, &uart_config);
30.  
31.     //Set UART 2 pins (using UART0 default pins ie no changes.)
32.     //-------------------------tx--rx
33.     uart_set_pin(EX_UART_NUM, 26, 25, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
34.  
35.     //Install UART driver, and get the queue.
36.     uart_driver_install(EX_UART_NUM, BUF_SIZE * 2, BUF_SIZE * 2, 20, &uart0_queue, 0);
37.  
38. // set UART 0
39.  
40.  uart_param_config(0, &uart_config);
41.  
42. uart_set_pin(0, 4, 5, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE);
43.    
44.     uart_driver_install(0, BUF_SIZE * 2, BUF_SIZE * 2, 20, &uart1_queue, 0);

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