UART not working in nRF52832 as an observer role only.

RE: UART not working in nRF52832 as an observer role only.

Ans Hafeez — Wed, 05 Apr 2017 13:27:00 GMT

Thanks Now its working

RE: UART not working in nRF52832 as an observer role only.

FormerMember — Fri, 31 Mar 2017 08:50:43 GMT

The reason that it doesn't work is because UART is used for data transfer (app_uart_put() ) and by the LOG module. They cannot work concurrently. If you want to use UART for data transfer, you can set up the LOG module to use RTT instead of UART. Just changing the setup for the log module in sdk_config.h will make your example work.

RE: UART not working in nRF52832 as an observer role only.

Ans Hafeez — Wed, 29 Mar 2017 13:50:40 GMT

Observer +UART.rar is added in answer

RE: UART not working in nRF52832 as an observer role only.

FormerMember — Wed, 29 Mar 2017 13:08:14 GMT

Could you upload your project here, so that I can test it? Which version of the SDK and softdevice do you use?

RE: UART not working in nRF52832 as an observer role only.

Ans Hafeez — Wed, 29 Mar 2017 09:23:14 GMT

Its shows NRF_SUCCESS error code is 0x00000000

RE: UART not working in nRF52832 as an observer role only.

FormerMember — Wed, 29 Mar 2017 07:34:12 GMT

The difference between running in normal mode and debug mode, is that in debug mode the HFCLK is running.

Which error code does app_uart_put() return?

RE: UART not working in nRF52832 as an observer role only.

Ans Hafeez — Tue, 28 Mar 2017 10:02:09 GMT

I have just edit the ble_app_hrs_c central example and add the UART code from UART example.

Finally put a uart function in find uuid function.

Have a look on following function Observer +UART.rar

static bool find_adv_uuid(const ble_gap_evt_adv_report_t *p_adv_report, const uint16_t uuid_to_find)
 {

    //Send data on UART
    while (app_uart_put('1') != NRF_SUCCESS);


  uint32_t err_code;
  data_t   adv_data;
  data_t   type_data;

  // Initialize advertisement report for parsing.
  adv_data.p_data     = (uint8_t *)p_adv_report->data;
  adv_data.data_len   = p_adv_report->dlen;

  err_code = adv_report_parse(BLE_GAP_AD_TYPE_16BIT_SERVICE_UUID_MORE_AVAILABLE,
                            &adv_data,
                            &type_data);

 


uint8_t uuid_start = 9;
uint8_t uuid_end = 24;

uint8_t major_start = 25;
uint8_t major_end = 26;
uint8_t minor_start = 27;
uint8_t minor_end = 28;

int chk =1;
int j=0;
int sec=1;

for (int i =uuid_start; i<=uuid_end;i++)
{ 
	if (p_adv_report->data[i] == uuid_two[j])
	{
		sec++;
		if (sec==17)
			nrf_gpio_pin_toggle(LED1);
	}
	else if (p_adv_report->data[i] == uuid_one[j])
	{
		chk++;
		if(chk ==17)
			nrf_gpio_pin_toggle(LED);		
	}	
}
j++;

}
return false;

}

When It found the nearby device then LED blinks but not data send over UART. When I run it in debugger then it works fine and send data over UART.

RE: UART not working in nRF52832 as an observer role only.

FormerMember — Tue, 28 Mar 2017 08:06:49 GMT

What does your code look like? Is it similar to the central example ble_app_uart_c?

RE: UART not working in nRF52832 as an observer role only.

Ans Hafeez — Mon, 27 Mar 2017 11:12:23 GMT

i have changed the approach. First it scan then stop scanning and put data on UART. but still its not working

RE: UART not working in nRF52832 as an observer role only.

Ans Hafeez — Fri, 24 Mar 2017 05:01:01 GMT

#define SCAN_INTERVAL 0x00A0
#define SCAN_WINDOW 0x0050

RE: UART not working in nRF52832 as an observer role only.

FormerMember — Thu, 23 Mar 2017 09:36:17 GMT

Which scan interval and scan window do you use?