Dennis Plunkett wrote: > Tony, you have too much time on your hands I don't know about that. I think I'll need to clone myself soon. I'm glad my missus is an understanding person or I'd be divorced by now. PS It figures, I had to add some house keeping to the Windows software and now it takes about 10 seconds to program a 74. Thats with max 25 programming pulses and 3 X N over programming enabled. Still, I suppose for a serial port it's not too bad. I just did a rough read routine and it does it in about 5 secs, so the programmer should be able to do an upper-normal-lower voltage program/verify in about 20 secs for a 4K part. Actually, mucking around with the serial port and communicating between a PIC and Windows, gave me an idea for a bit of experimenters software..... -- Best regards Tony http://www.picnpoke.com Email sales@picnpoke.com