Post #1828217
2026-04-28 20:31 UTC
Some day I will find more time to look at the logic analyzer traces of #LEGO #SmartBrick. While the extension "SPI Flash" by Adafruit did not work, "SPI Memory Analyzer" by Thomas Poms does a good job in decoding the communication with the Winbond SPI flash. In the current trace I've only seen 'Read Data' (0x03) and two "unknown" commands which the HLA is unable to decode: "Power-down" (0xB9) and "Release Power-down" (0xAB). Makes sense to me as the ROFS (read-only filesystem) serves assets.
Replies (1)
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@maehw@chaos.social 2026-04-28 20:36
The MOSI_or_MISO and MISO_or_MOSI labelling of the channels is obsolete btw. It's perfectly clear which one is which. 🤓