> > Byron, > > I think I know the programmer you're talking about and it's *not* > intelligent (the smarts came out of a PC). Control was through the PCs > Parallel Port. I think it was published around 1984. No, that's a different one. The one I was talking about had a 8031 on board, communicated via the serial port, and had dynamic reconfiguration. He did have another one earlier and the intelligent serial one was an update to it. > You could probably build an EPROM Programmer using a PIC, Variable Voltage > Supply, and a few counters. But there are the issues of understanding: > > 1. What is the host platform. > 2. What is the object file format. > 3. What is the device you want to program (and what are the programming Specs). > That's about the sum of it. With PIC's it's fairly easy to get enough smarts to get the job done too. BAJ