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pico9918: A replacement TMS9918A/TMS9929A VDP using a Raspberry Pi Pico
A replacement for the classic TMS9918A/TMS9929A VDP, powered by a Raspberry Pi Pico - visrealm/pico9918
Note: Due to GROMCLK and CPUCLK using GPIO23 and GPIO29, a genuine Raspberry Pi Pico can't be used. I could reduce the VGA bit depth to 9-bit or 10-bit to allow the use of a genuine Raspberry Pi Pico board, but given the longer-term plan is to use the RP2040 directly, I've decided to go this way for the prototype. These videos are showing the v0.2 hardware with an external Pi Pico providing the required GROMCLK signal to the TI-99.
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