Fixing a friend’s VIC-20 and I hastily assembled a character ROM adapter. I then spent an embarrassing number of Mississippi’s wondering why it didn’t work. Details Michael, details. #commodore
Good grief, these are still waaayyy too long. I’m gonna have to break down and buy an IDC cable connector crimper. Until then, let’s get the VIC-20 memory map more organized in my Verilog shall we? #commodore
Back on the VIC chip FPGA replacement this evening after a needed break. Having to level shift both directions between the VIC-20(5V) and the FPGA(3.3V) is a recipe for a crazy breadboard mess. Working on tidying it up. Looking better already.#vicsrevenge #commodore
Happy Thursday! #commodore
This is what I settled on for the @TexElecUSA #commodore PET keyboard arrangement using ANSI 104 keycaps. Now I need to get stickers printed but I’m very happy with the way this is turning out. Went with Cherry MX blacks on this one.
Today’s side quest: take these 208 ANSI keycaps and come up with a reasonable arrangement for my #commodore PET replica keyboard. Should be interesting.
Not terrible for an inexpensive signal generator.
14 pounds (not a typo) of the last of the local Mangalitsa we bought over the winter is spending all day on my ancient, beat up, hand me down smoker. It’s a hard knock life. :)
This afternoon’s festivities include soldering $60 worth of Cherry switches #commodore
More CPU testing. The 65c02s with the transceiver is consistently slower. Gonna have to break out the scope and look carefully at timing and propagation delays. Same machine, same code, different CPU setups. #commodore
Michael Doornbos 