>> You don't "NEED a slow rise time". > > You do if you want to keep away the frequencies that will > cause trouble on the transmission line. =A0Low pass filtering > a edge will increase its rise time. =A0Conversely, faster > edges have higher frequency content. =A0You can't cheat > monsieur Fourier. In the context of this thread you don't need to slow the PIC output rise time. RTFM PIC32MX and M25P16V. -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist