I'm trying to actually get to the point where I build this thing. Here are some pictures of the modules I've worked on, used for testing, etc. along the way.
The ones with sockets were intended for the PEx. Because the PEx module is the same as the 9600 and because these have sockets, I was able to install chips with 9600 ROM code and test them in a 9600. They don't work. The modules with soldered down chips work fine in a 9600 with 9600 ROM code. Sigh.
Next step, since I'm out of blank circuit boards, is to desolder the chips or sockets from one of these and solder down Flash programmed with the PEx code.
The big question mark is whether the downloads we have of the PEx code is an actual accurate copy of what's on the chips of the PEx ROM. When I compare downloaded 9600 code to what I read directly off the 9600 ROMs, it does not match.
The ones with sockets were intended for the PEx. Because the PEx module is the same as the 9600 and because these have sockets, I was able to install chips with 9600 ROM code and test them in a 9600. They don't work. The modules with soldered down chips work fine in a 9600 with 9600 ROM code. Sigh.
Next step, since I'm out of blank circuit boards, is to desolder the chips or sockets from one of these and solder down Flash programmed with the PEx code.
The big question mark is whether the downloads we have of the PEx code is an actual accurate copy of what's on the chips of the PEx ROM. When I compare downloaded 9600 code to what I read directly off the 9600 ROMs, it does not match.