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RGB-LED blink

An original public-domain (CC0) program, hand-authored in Xtensa LX7 assembly. It enables GPIO48 as an output and bit-bangs the on-board addressable RGB LED between a solid colour and off forever, logging RGB LED: on / off over UART0. The microcontroller "hello, world", but on the S3's addressable LED — a tight target for single-stepping the Xtensa core and watching the GPIO bank-1 registers drive the WS2812.

Download ↓ Original source ↗

Format: Raw ESP32-S3 flash image (Xtensa LX7), base64  ·  By: emulators.org  ·  Licence: Public domain (CC0)