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]

Hi

1. If the memory allocation is wrong, you will get an error from the SoftDevice, telling you what to set the RAM and Flash sizes to.

2. As Andrew says, our examples defaults to using external crystals, and there should not be any problems running BLE applications on external crystals, as long as they are mounted correctly.

I am guessing the issue here is that either one of your crystals are not mounted/connected properly. Or that the antenna is not working as intended. Could you please provide the data sheets to the crystals and antenna you are using, as well as be specific on how you have tuned and set up the matching circuit.

Best regards,

Simon

[IMRAN]

https://www.murata.com/en-sg/api/pdfdownloadapi?cate=cgsubResonators&partno=XRCMD32M000FXP54R0

please find the above link for the datasheet of the 32MHz crystal we used in our circuit, as well as we are using copper wire as an antenna with the matching circuit provided in the above circuit.

[IMRAN]

Previously we use nRF52832QFAAB0 development board, but in our PCB we mounted nRF52832QFAAE1. Is there any major change for both of these? We observed that B0 is 1st revision and E1 is the 2nd revision chips.Is anything we need to change to get our circuit working correctly?