How can I determine which unexpected interrupt triggers a call to Default_Handler()?
Halting the processor in this function gives the following state:
In the xPSR register, ISRNUM field I think I’m getting a hard fault (ISRNUM = 3).
The HFAULTSTAT register indicates a forced hard fault.
The FAULTSTAT register reports an Imprecise Data Bus Error.
I'm not sure how to proceed. Are there any guides for how to debug this?
-phil
