Tag: hardware

A guided tour of Rusty Nail as it stands: the little OS on screen, the four breakout boards doing the real work, and the Game Boy cartridge shell hiding a 16 MiB SPI flash chip.

One evening, three fronts: a haunted iterator that cloned the player, a link clock ladder re-measured rung by rung, and a physical cartridge that finally keeps its saves.

Getting real console frames from the H7 to the Feather RP2040 DVI took two days and five separate root causes: a CPU-starving encoder, a FIFO race, a missing ground return, a clock divider that lied to me, and a GPIO port that mutes my DAC.

The Feather RP2040 DVI arrived this morning and had the console's palette on a monitor within 45 minutes of hitting the bench - after a wrong-variant pinout diagram, a factory firmware with no drive, and a 3D printer slicer typing G-code into my REPL.