Jason White wrote: > How would I calculate how long 1 nop takes ?' By knowing the instruction clock rate, then looking in the datasheet to see that a NOP takes one of them. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist