NRF52832-CIAA BLE NOT WORKING

[Gopal]

Hi All,

can any one tested BLE on nRF52832-CIAA?

Actually we have a nRF52-DK and also our application board.

in both the boards we loaded DFU project to check BLE connectivity. in nRF52-DK, BLE function works great. but in our application board (nRF52832-CIAA) we cannot see the BLE advertising (32MHZ crystal is also not resonating)

please let us know what is the issue?? early response will be appriciated..

below attached the schematics.

[Gopal]

Attached the SCH and layout files.

FABRICATION.rar

SCHEMATIC1 _ 01 NRF52832.pdf

[AmitKumar]

We further narrowed down the problem, trying to get only the radio working (without the bluetooth). We are using the pair of receiver and transceiver test examples. It works if we use both the boards as nRF52832-DK boards. We replaced the receiver board with our application board (with receiver application flashed) and found that we are looping while waiting for HFCLOCK to start. Following is the code snippet where we are waiting, code is verbatim from receiver example in 11.0.0 SDK, from Keil5.

void clock_initialization()
{
    /* Start 16 MHz crystal oscillator */
    NRF_CLOCK->EVENTS_HFCLKSTARTED = 0;
    NRF_CLOCK->TASKS_HFCLKSTART    = 1;

    /* Wait for the external oscillator to start up */
    while (NRF_CLOCK->EVENTS_HFCLKSTARTED == 0)
    {
        // Do nothing.
    }