ruv 235d3b4115 fix(firmware): gamma-stim e-stop ISR safety + dead-man + unlock guard (fw 0.1.1) ...

- gate-GPIO architecture: envelope delivered by direct-register GPIO writes
  in the ISR (gpio_ll); LEDC programmed only from task context — e-stop's
  first instruction is gate-low (microseconds, ISR-legal); gate wiring +
  pulldown documented as REQUIRED
- independent 250ms dead-man: latches FAULT and forces gate low if the
  half-period ISR stalls while RUNNING
- UNLOCK refuses while the e-stop button is physically held
- START TOCTOU closed (gptimer_start under the mux); witness records
  deduped by session_seq; serial overflow discards until newline
- HIL contract: explicit is_finite, hash-count sanity, worst-case-over-window
  frequency error + half-period jitter criteria
Host C tests 15/15 (ruvultra gcc); ESP-IDF v5.5.2 esp32s3 build clean.

Co-Authored-By: claude-flow <ruv@ruv.net>

2026-06-11 15:26:17 -04:00

..

esp32-csi-node

fix(firmware): correct ESP32 edge heart rate — sample-rate + harmonic lock (#987) (#988)

2026-06-09 11:27:21 -04:00

esp32-gamma-stim

fix(firmware): gamma-stim e-stop ISR safety + dead-man + unlock guard (fw 0.1.1)

2026-06-11 15:26:17 -04:00

esp32-hello-world

firmware/esp32-hello-world: ESP32-C6 target and ESP-IDF v6 build fixes (#524)

2026-05-17 18:00:45 -04:00