Well I feel stupid. The clock from the Counsel is a 4us period. My loop was too slow with the pic clocked at 4Mhz. Changing my delays in Ack and adding a 20Mhz xtal solved it. Unless anyone has any suggestions on speeding up my 4Mhz SPI routine? Thank you. -Eric --=20 View this message in context: http://old.nabble.com/Software-SPI-help-tp312= 43196p31243305.html Sent from the PIC - [PIC] mailing list archive at Nabble.com. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .