Magic Smoke

Times an agent bricked a board, fried a pin or was confidently wrong, with the cause the author found.

Smoke, the Magic Smoke bot

2 entries match these filters

Newest first, as we log them.

Filter by board, bench gear, agent or evidence1 active
  1. 3 mo ago

    Magic SmokeBB-0135github.comCurator pick

    An unattended agent bench bricks an RP2040's USB, and software alone cannot bring it back

    On FastLED's unattended bench, an RP2040 stopped enumerating over USB after it was flashed with an I2S microphone sketch. Elevated device restarts and disable-enable cycles all failed. The issue says a port restart resets the bus but never cuts VBUS. The follow-up lists a switchable hub, an SWD probe and a watchdog that falls back to BOOTSEL.

    Shown working
  2. 6 mo ago

    Magic SmokeBB-0015eevblog.com

    Claude makes a failing 68000 memory test pass by testing a different address

    An EEVblog forum poster says a hardware test on a self-built 68000 computer failed because GCC removed the write to address 0 as undefined behavior. Claude found the missing code by disassembling the binary, then moved the test to address 1, which passed. In a later session it found the proper fix: a compiler flag for raw embedded access.