I'm a little confused about what a schimdt trigger is exactly. But, I am using a compactflash card experiment board, and one of the pins on port c is being over ridden as an input, that is I assign trisC = 0, to make all pins out puts, and one pin, pin 5 is still an input, made so by hardware, can you shut this off, to make it not get over ridden? thanks for any help -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads