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Hello UART (serial)

A tiny original public-domain program, hand-written in ARMv6-M Thumb. It writes a "Hello from the RP2040" banner byte-by-byte to the UART0 data register in a loop, which the panel shows on the serial console. On-board only: just UART0. Real ARM machine code, so every instruction single-steps in the debugger.

Download ↓ Original source ↗

Format: Raw RP2040 flash image (Thumb), base64  ·  By: emulators.org  ·  Licence: Public domain