# FC05 card plan

## Thesis

A FreeRTOS queue owns a fixed-size byte copy of each enqueued item. Queue
occupancy controls which sender or receiver is Blocked, while priority decides
which unblocked task runs next.

## Views

- A2 — message, queue and task structure;
- A5 — deterministic send/receive sequence;
- A6 — occupancy and task-state transitions;
- A7 — GDB-visible full-queue checkpoint;
- A8 — value versus pointer ownership decision.

## Required evidence

The replay must prove empty blocking, full blocking, FIFO `M1→M2→M3`, retained
`M2=0x2222` after the producer changes its source to `0xDEAD`, distinct task
stacks and a deterministic ten-record evidence stream.