Shawn Tan Ser Ngiap wrote: > You can drive the signal line from the power supply in a pull-up > fashion.. cause the PIC UART doesn't drive the line directly.. It only > sinks, not source current... Huh? Where did you get this from? I'm pretty sure this is incorrect. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist