Tag: rp2040
5 posts tagged with "rp2040".
The RP2040 as a SNES sound chip, at 97 per cent of realtime
Two bodge wires taught the HDMI coprocessor to talk back and run the SNES sound chip with real Super Mario World music. It reached 97 per cent of realtime.
A 3x palette scanout for the HDMI picture
The HDMI picture was pixel-perfect and still looked soft. A full-resolution palette scanout fixed that, after an afternoon lost to a heap that only sometimes existed.
Getting console frames onto the Feather RP2040 DVI
Two days between the H7 and a real HDMI picture, including a missing ground return and a clock divider that misreported its rate.
First light on the Feather RP2040 DVI
The DVI board had the console's palette on a monitor within 45 minutes of arriving, despite a wrong-variant pinout diagram and a slicer typing G-code into my REPL.
The HDMI board I bought before reading the datasheet
I bought a 50-pin RGB888-to-HDMI board, then counted the pins. The Nucleo never had 24 to give, so the fix is probably a second microcontroller whose whole job is HDMI.