> ...it's a bit compilicated to get RX to > work right. But is this is just used for bootstrapping, is it really neccessary to have read-back? If you load it with "blink an LED" and it blinks when you take away Vpp, that is a really good sign, then you load in a serial bootloader, flip a switch and use it as a bootloader cable. Cheerful regards, Bob -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist