=20 > I'm not using and I don't want to use the standard library routines to ma= nage them, > yet all the other <=3D6 levels work perfectly, just the 7 doesn't. Is the= re anything > special for level7 I'm missing, like a call to enable shadow set, etc..? I don't know about PIC32, but on PIC24 IIRC L7 interrupts are reserved for = the error trap interrupts that the CPU itself generates. Are you sure you a= re allowed to have normal interrupt routines as L7 interrupts, as this woul= d mean the trap routines cannot work. --=20 Scanned by iCritical. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .