----- Original Message -----=20 From: "Byron Jeff" > The problem with the Microchip loader, the Tiny bootloader, and others is > that virtually all of them tie up the hardware serial port making it a > challenge to use when you have a project that also needs that serial port= .. Tiny bootloader doesn't tie up the serial port. You can use the serial por= t for whatever you want. The boot loader runs on PIC startup a very short time to see if there is anything to be downloaded. If it doesn't detect any download it runs the main program were you configure the uart and start using it. Gordon Williams --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .