Table of Contents
Good day in the mailbox... the Willy Wonka CR boards have landed on the bench.
CR is the color RAM half of the Willy Wonka family for the VIC-20. It carries 16 pages of color RAM, which is what makes FLI-style raster graphics possible on a machine that was never designed to do anything of the sort. Address decoding is handled by a GreenPAK SLG46533V, and the board connects to the VIC-20 motherboard via FFC cable so the host PCB stays untouched.
CR and CPU are independent projects. You can fit either one on its own, or both together for the full Willy Wonka feature set.
Bring-up plan:
- Visual inspection of the assembled boards.
- Power up on the bench and check rails before connecting to a host machine.
- Fix the GreenPAK configuration. The current NVM image has a few known issues that need to be sorted before the decoding behaves the way the schematic intends.
- Install in a VIC-20 and walk through the functional checks.
I'll write up the bring-up notes once the board has proven itself.