Unable to run BLE (app_uart) example application in nRF52832QFAAE11809AC revison 2

[IMRAN]

Hi, I have custom nRF52832QFAAE1 when I tried to run Peripheral applications which are working fine. whereas BLE applications are not running it seems.

here are the things I want to clarify:-

1) Using SDK14.1.0 and soft device 5.0.0.

So for the above SDK and Softdevice is the Memory allocations in LD file is correct or not.

MEMORY
{
FLASH (rx) : ORIGIN = 0x23000, LENGTH = 0x5d000
RAM (rwx) : ORIGIN = 0x20002a68, LENGTH = 0xd598

}

2)  Do i need to configure an internal oscillator to run BLE APPLICATIONS.

Attached schematics of my Custom board

[Simonr]

There shouldn't be anything but fixes in the newer revision chips. I assume there is something wrong with the antenna network in your custom design. It seems like the matching circuit capacitors aren't grounded, and if they aren't, they have to be, and you have to impedance match the circuit again. Could you share the gerber files so I can have a look? I can set this case to private if you don't want to make these files public. 

Best regards,

Simon

[IMRAN]

thanks for the quick response

we made the matching circuit capacitors grounded by external wire. did the impedance match circuit require two inductors and three capacitors?

can you please provide a reference circuit for impedance matching antenna?