nRF52840 to nRF52833 porting SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler problem

[astella]

To the kind attention of Nordic support team,

I have got an nRF52840 working application using usb and gazell, and I'm porting it from nRF52840 to nRF52833 these days. Yes, I slightly modified code in order to use sdk16, instead of the sdk15.2 one. I got this error that is quite new to me. 

Code gets stuck in here:

.thumb_func
.weak Dummy_Handler
Dummy_Handler:
b .

and call stack situation is the one in the attached image. It seems that some interrupts have been generated, that have not got the right handler provided. But which module uses such an interrupt handler in usb gzll application? I'm using gzll_nrf52840_sd_resources_gcc.a library in the project. 

Best regards

[astella]

I think I got a clue about the cause of the problem. Actually I was getting all sorts of strange errors like this one (in the same conditions):

they all stopped (I mean, I didn't get these kind of errors) when avoiding to start a timer I created in the old project (for nRF52840 using sdk15.2) app_timer_create. Maybe I have to check that there is something changed when instantiating and running a timer this way.

Best regards

[Sigurd]

astella said:

Maybe I have to check that there is something changed when instantiating and running a timer this way.

 Note that in SDK 16 App Timer v2 is out of experimental and replaces the legacy App Timer. See this migration guide section.

[astella]

Thank you very much for your kindness