The initialization provided by DAVE results in endless loops for every interrupt handler which is not explicitly defined somewhere in the firmware. See the macro Insert_ExceptionHandler in file startup_XMC4400.s. If for some reason such a vector gets called, the affected device will effectively freeze.
A better solution might be inserting a call to one specific subroutine by the macro Insert_ExceptionHandler. For example, the specific subroutine could have the name UnsupportedException_IRQHandler and would be weak, too. Existing firmware behavior would be retained, but you could implement void UnsupportedException_IRQHandler (void) somewhere in your firmware, which would handle all these events without freezing the device.
Any suggestions for the necessary modifications in startup_XMC4400.s?
TIA, Rudi
