feat: publish FreeRTOS C FC06 card

2026-07-19 16:36:03 +02:00
commit 0fc6158501
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+# FC06 — FreeRTOS software timers
+
+This card distinguishes successful timer command submission from later command
+processing and callback execution by the timer daemon. The deterministic replay
+uses one one-shot timer and one auto-reload timer. It resets the one-shot before
+its original expiry and changes the auto-reload period after two callbacks.
+
+Expected callback ticks are `auto=[2,4,7]` and `one-shot=6`. The callback runs
+on the daemon stack, obtains a typed `TimerTag` through `pvTimerGetTimerID()` and
+only records bounded evidence.
+
+```sh
+make check
+python3 /home/user/dev/workspace/stem/tools/card-layouts/tools/build_freertos_c_card.py .
+python3 /home/user/dev/workspace/stem/tools/card-layouts/tools/render_card.py .
+```