Hi all,
I'm trying to combine the BLE NUS central with USB CDC functionality.
I have copied over functions from the USB CDC ACM example into the BLE_APP_UART central example.
I have enabled all the relevant USB modules in sdk_config.h
Upon flashing, the BLE NUS central functions work well. However as soon as I connect the nRF USB, the program hangs immediately.
I discovered that this issue is due to the USB peripheral waiting to be enabled upon receiving the power detection event.
This is the loop below.
while (0 == (NRF_USBD_EVENTCAUSE_READY_MASK & nrf_usbd_eventcause_get()))
{
/* Empty loop */
}
So it seems that EVENTCAUSE is always 0 and the loop never ends.
I'm using SES with SDK15, which already has the errata fixes implemented, so I'm quite unsure why this issue still persists.
However, I found out that I can make my code work by first flashing the usb_cdc_acm example, then flashing my actual modified code.
It works until I reflash it again. Then I would need to repeat the procedure.
I'm testing this using a custom PCB with the rev1 QIAA-C0 variant, as I have a non-working USB V0.92 PCA10056.
Any help appreciated. I can provide the SES project file if needed.
