Ok, so I carefully read the datasheet (http://www.austriamicrosystems.com/eng/Products/Lighting-Management/LED-Drivers/AS1107) for the AS1107 and wrote a very simple serial driver in C (C18 compiler). Can someone please tell me if I am doing this correctly? My code his here: http://pastebin.com/f244a02f3 If someone could check my code, I would greatly appreciate it. Thanks! -- solarwind -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist