Raytac BLE module not broadcasting

[pavan]

Dear all,

I have designed custom board using Raytac mdbt40(nrf51822) module on my board and programming using nrf51DK my setup is like

VnRF: not used

VDD: not used

VTG: to VDD on target board that is self-powered with ~3V

SWDIO: to SWDIO on target chip

SWDCLK: to SWDCLK on target chip

SWO: not used

RESET: not used

GND DETECT: GND on target board | GND on nRF51-DK .

I started by programming blinky(blank) example on my board and i can see toggling LEDs its working fine. Next i erased board using nrfgo studio and programmed softdevice through nrfgo and then programmed BLE_UART_PROGRAM using keil ide. now here the issue starts my custom board is not broadcasting anything i cant see any connectivity in my nRFtoolbox app. but when i remove the connection and power ON the DK i can see the connectivity. please help to resolve this issue

btwn i am not using 32.768kHZ external oscillator to my module.

[pavan]

I am using SDK_12.3.0_d7731ad and soft device "s130_nrf51_2.0.1_softdevice". first erasing the board using nrfgo and programming soft device with same and the programming application via kei in my nrfgo its detected as nrf51422 though i connected it to my custom board . with below settings

ifdef S210 define NRF_CLOCK_LFCLKSRC NRF_CLOCK_LF_SRC_RC else

#define NRF_CLOCK_LFCLKSRC {.source = NRF_CLOCK_LF_SRC_XTAL, \ .rc_ctiv = 0, \ .rc_temp_ctiv = 0, \ .xtal_accuracy = NRF_CLOCK_LF_XTAL_ACCURACY_20_PPM} pavan (1 hour ago)