VDDPA shut down on custom board

[JD]

Hi, I have a custom board based around the nRF51822 which I programmed via SWD with the ble_app_hrs_pca10028_s130.hex image provided in the SDK, however when checking with the oscilloscope I see that there is no signal being outputted at the VDDPA pin, it is flat off. The same example on the nRF51-DK shows of course a good power signal at that pin when advertising. I have also tested other functions of the custom board like GPIOs and SPI and they work fine however the BLE section seems completely shut down. I'm not sure what could be the cause of the problem, I'm suspecting it's a hardware issue. I basically copied the BAL-NRF01D3 reference design and then used a PCB antenna, yet still get no power to the antenna, does anyone know what could be the issue here?

Here's the schematic for the custom board antenna section:

Checking VDDPA pin on custom board:

Scope output, flat:

Checking VDDPA pin on nRF51-DK:

Scope output, OK:

[bjorn-spockeli]

Are you able to debug the ble_app_hrs_pca10028_s130 application on the custom board and verify that the example is running correctly?