It works!!! Including using the same VGATE firmware and the same component values as the NTSC version.
And I was able to boot up and play Turricon.
One is no big deal, and I would have ignored it if that's all that was wrong. It has one of the 2-pin mounting headers shifted towards the back. However the other issue is much more serious, and it has to do with how far the back edge of the PCB sticks out from the motherboard it piggybacks. Essentially it's sitting too far back and now doesn't want to fit inside the case.
So I'll need to mod my PCB files for that one, and then do another sample run.
I'm feeling pretty good about the MAIN schematic, so here's version 1.1...
C64-VGATE_V1.1_MAIN_schema.pdf |
Nice to see this work without having two different versions of the firmware, and with the same values that work for both the NTSC and PAL HMOS VIC-II chips.
- Michael
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