Hi,
I'm using SDK 13.0.0 and Softdevice s140 5.0.0-2alpha on my nrf52840-PDK. I tested the usbd_hid_generic and usbd_audio examples and they work fine, I can see the device being enumerated on my laptop when connected to USB.
Now I would also like to start the softdevice bluetooth stack and use the USB at the same time but it doesn't work, after a bit of digging through the code I've notcied that nrf_drv_power_init() will return a non zero value because softdevice is enabled
if (softdevice_handler_is_enabled())
{
return NRF_ERROR_INVALID_STATE;
}
So as a workaround I tried not to call nrf_drv_power_init() anymore and here is the code that I use to initialize USBD:softdevice_handler_init(....) //somewhere I start the bluetooth stach which at some point calls this
ret = nrf_drv_clock_init();ret = app_usbd_init(NULL);app_usbd_enable();app_usbd_start();
As you can see there is no call to nrf_drv_power_init(). When debugging I see that the code gets stuck in a while loop inside nrf_drv_usbd_enable() which is called by app_usbd_enable():
nrf_usbd_enable();
/* Waiting for peripheral to enable, this should take a few us */
while (0 == (NRF_USBD_EVENTCAUSE_READY_MASK & nrf_usbd_eventcause_get()))
{
/* Empty loop */
}
As you can see it enables USBD than polls NRF_USBD->EVENTCAUSE register waiting for USBD_EVENTCAUSE_READY. The problem is that this bit is never set so it gets stuck in this infinite loop.
Is there something else that I need to enable before this in order to get this bit set after I enable USBD ?
Thank you.
