PIO is driving CPU

25 Feb 2024 - smokku

« Memory communication over QPI : CPU bus and Memory decoders »

1/2 of memory emulation PIO programs done! Pico is able to read A0-A23 address from CPU and feed it with NOPs.

There is a description of how it works in comments in https://github.com/X65/firmware/blob/5f37dface8/src/ria/sys/mem.pio