2005-11-21 01:32 PM
2005-11-20 07:44 PM
I've used the example codes downloaded from ST website, and found an odd thing.I set a breakpoint at 'LDR PC, IRQ_Addr' in exception vectors, but it didn't stop when an IRQ interrupt occured(I set a breakpoint at IRQHandler, and it surely stopped).It really doesn't make sense that the ARM core executes the codes in IRQHandler without going through 'LDR PC, IRQ_Addr'.
Please help,thanks.2005-11-21 01:32 PM
I used the USB example.