> What's wrong with a beginner's bootstrap programmer where you can follow > the individual bits on an LED? :) Come to think of it, all you need to program a blinkenled into a blank PIC with Flash is two debounced toggle switches and a table. Then you can toggle it all in ... oh and a Load/Stop/Run switch. First person to field a PIC programmer with blinkenlights and panel toggle switches will make history (pun!). Toggling a 10-word program toggled into a PIC16Fxxx requires about 280 clock toggles and half as many data toggles. Do-able with some patience, probably after splitting into 5-toggle groups ;-) Peter -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist