BLE stops advertising once changed UART tx and rx pin

[Fab1223]

Hi All,

I am using Nordic SDK version nrf51_SDK_9.0.0 for PCA10028 board. In that i am using application

D:\nRF51_SDK_9.0.0_2e23562\examples\ble_central_and_peripheral\experimental\app_s130_demo

with S130_V_1.0.0 softdevice.

But if i change UART RX and TX pin, the device is not giving advertisement.

Can you check and let me know what may be the issue.

[Thangaraj]

can you share the piece of code you are using?

[Fab1223]

int main(void) { uint32_t err_code;

    board_configure();
    rtc1_init();

    LOG_DEBUG("%s: Enabling SoftDevice...", __FUNCTION__);
    
    if (NRF_SUCCESS != sd_softdevice_enable((uint32_t)NRF_CLOCK_LFCLKSRC_XTAL_75_PPM, softdevice_assert_callback))
    {
        APP_ASSERT (false);
    }

    ble_enable_params_t ble_enable_params = 
    {
        .gatts_enable_params = 
        {
            .service_changed = IS_SRVC_CHANGED_CHARACT_PRESENT,
            .attr_tab_size   = BLE_GATTS_ATTR_TAB_SIZE_DEFAULT
        }
    };
    if (NRF_SUCCESS != sd_ble_enable(&ble_enable_params))
    {
        APP_ASSERT (false);
    }
    
    if (NRF_SUCCESS != sd_nvic_EnableIRQ(SD_EVT_IRQn))
    {
        APP_ASSERT (false);
    }
    LOG_INFO("#########################");
    LOG_INFO("# S130 Demo application #");
    LOG_INFO("#########################");
    LOG_INFO("INFO: Press button 1 to connect to peripherals.");
    LOG_INFO("INFO: Press button 2 to see the buffered data");
    LOG_INFO("INFO: Press both 1 and 2 buttons to quit demo.");
    LOG_INFO("Inital error reason %d\r\n", err_code);
		
		
    own_service_setup();
    peripherals_info_reset();
    central_info_reset();

//		err_code = sd_ble_gap_scan_start(&m_scan_param);
//    APP_ERROR_CHECK(err_code);
//		if ((err_code = event_handle(BLE_GAP_EVT_ADV_REPORT, 2000, NULL, NULL)))
//		{
//		}
    do_work();
    
    LOG_DEBUG("%s: End demo application...", __FUNCTION__);
    while (1);
}

Here is Piece of UART CODE

static void uart_init(void)
{
	
	 /**@snippet [UART Initialization] */
    simple_uart_config(RTS_PIN_NUMBER, TX_PIN_NUMBER, CTS_PIN_NUMBER, RX_PIN_NUMBER, HWFC);
    
    NRF_UART0->INTENSET = UART_INTENSET_RXDRDY_Enabled << UART_INTENSET_RXDRDY_Pos;
    
    NVIC_SetPriority(UART0_IRQn, APP_IRQ_PRIORITY_LOW);
    NVIC_EnableIRQ(UART0_IRQn);
    /**@snippet [UART Initialization] */
	}

Here I change RX and TX pin

#define RX_PIN_NUMBER  11
#define TX_PIN_NUMBER  9
#define CTS_PIN_NUMBER 10
#define RTS_PIN_NUMBER 8
#define HWFC           true

Here is pin config in pca10028.h file, if i keep RX and TX 11 and 9 as default works properly, but if change pins , not giving advertisement

[Petter Myhre]

@Fab1223 Please edit your question and include the code. And mark the code and use the 101010 button.

[RK]

"not giving advertisement". 99.9% of the time that means you're in the error handler. So put a breakpoint there and find out which system call gave you an error and why.