> I was wondering if anyone had gotten around to writing a Wloader cloner that'll > spawn wloader from one chip to another. With low voltage programming it should > be nothing more than implementing the regular serial programming algorithm > for the 16F87X series coupled with a read of WLoader from it's location. When you want to make it a single-purpose tool it should not be that difficult. But personally I would choose not to use the low-voltage programming because it can be a nuisance and you can only be sure that it is enabled for new chips. Look at the source and hardware for my WISP programmer, as you say you could simply put the WLoader code high in the F877, the WISP code in the low, make sure the WLoader code is never enabled, and add a start-programming button and a programming-finished good/bad LED (there are plenty of pins), ignore (leave out) the variable-vcc parts and you have you gizmo... Don't forget to set up a web page for it! Wouter -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu