> The following is from my PIC16F877 program - don't know if the interrupt > handling is similar to a PIC17C756, but this is how I check for multiple > interrupts in C. Maybe it will help you. The 17C interrupt structure is a bit different from the 16C. The 17C has four different interrupt vector locations. However, the interrupt handler is probably the least appropriate module to write in a higher level language. ***************************************************************** Olin Lathrop, embedded systems consultant in Devens Massachusetts (978) 772-3129, olin@cognivis.com, http://www.cognivis.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.