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DSPi is an open-source firmware that turns a Raspberry Pi Pico into a fully featured digital audio processor, offering room correction, parametric EQ, matrix mixing, and more.
A blog post exploring how to use a Raspberry Pi Pico RP2350 with PIO to monitor the address and data buses of a Z80 microprocessor, including timing considerations and clock speed limits.
The author successfully encoded Sega Genesis game data as audio, played it from a vinyl record, decoded it with a Raspberry Pi Pico, and loaded it onto the console, completing a proof of concept.
A comparison of a 1989 Motorola 68000 memory map design with the modern Raspberry Pi Pico, highlighting the luxury of round-number allocation and the similar scale of memory (192KB vs 260KB), while discussing architectural differences and feasibility.
The GlyphBlaster is a Raspberry Pi Pico based device that replaces the font ROM on a CGA card, enabling 60fps video playback in text mode by using the font ROM readout as a pixel-addressable framebuffer.
Built a pint-sized Macintosh using a Raspberry Pi Pico running Pico Micro Mac firmware, with VGA output and USB keyboard/mouse.