That looks awesome, thanks for sharing! I do have an 8K RAM cartridge, so a project using that is a possibility in the future.eslapion wrote: ↑Sun Dec 08, 2019 11:26 pm Both the VIC-1110 8k and VIC-1111 16k RAM expansions use the same PCB. However, on the VIC-1110, 4 2k x8 SRAM footprints are left empty. On one of these boards, I filled 3 of the empty footprints with 8k x8 SRAM ICs and networked the missing extra address lines accordingly. This turns the 8k RAM expansion into a 32k RAM expansion.
You need to be careful with VICMon, if you're using an original ROM like I am. It has this cool bi-directional disassembly feature, but that feature looks at screen memory at $1E00. As soon as you add RAM to block 1, screen memory relocates and that feature breaks. The only way to expand BASIC RAM without breaking VICMon is to use the 3K area at $0400.
So the 3K expander PCB is ideal as a VICMon host. For me, especially, since as a kid I did pretty much all my programming with a 3K expander.