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TITLESoftware timers i timer daemon
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD06/15
SHEET1/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID40613f0f-6688-53f0-8c20-e87c6ef73c4eCARD UUIDab188300-f03d-5ddb-8316-b9534876a5bcAUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-software-timers
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/ab188300-f03d-5ddb-8316-b9534876a5bc
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Uczeń rozdziela przyjęcie komendy timera od jej wykonania przez timer daemon oraz bada callback na osobnym stosie taska systemowego.

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Controller uruchamia one-shot i auto-reload, resetuje one-shot przed pierwotnym terminem, po dwóch callbackach zmienia okres auto z 2 na 3 ticki i zatrzymuje go po trzecim. Callback rozpoznaje timer przez pvTimerID i zapisuje wyłącznie bounded evidence.

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one-shot, auto-reload, command queue i callback

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TITLESoftware timers i timer daemon
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD06/15
SHEET2/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID40613f0f-6688-53f0-8c20-e87c6ef73c4eCARD UUIDab188300-f03d-5ddb-8316-b9534876a5bcAUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-software-timers
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/ab188300-f03d-5ddb-8316-b9534876a5bc
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", "content_html": "", "tasks": [], "assets": [ { "label": "fig:a1-context", "logical_label": "fig:a1-context", "figure_number": 1, "caption": "A1 CONTEXT — controller, command queue, daemon i callback. — część 1/1 (r1 c1)", "alt": "Warstwy software timer service.", "href": "figures/a1-context.svg", "source_href": "figures/a1-context.puml", "width": 1.0, "kind": "diagram", "interactive": { "kind": "uml-class", "storage_key": "fc06-a1-context-tile-1", "title": "A1 · granice timer service", "task": { "id": "task01", "label": "Task01 · software timers" }, "block": { "id": "a1", "label": "A1 CONTEXT", "description": "Dwie płaszczyzny: application command i daemon execution." }, "phases": [ { "id": "context", "label": "COMMAND / DAEMON / CALLBACK", "steps": [ { "id": "app", "number": 1, "label": "application submits commands", "mode": "RUN", "event_id": "E02", "strategy_ref": "run.commands", "svg_label": "01", "code_ref": "src/tasks/task01_software_timers.c:122", "snapshot_ref": "task01.started", "description": "API zwraca stan wysłania komendy.", "evidence": "start_accepted=1.", "strategy": { "id": "task01/a1/context/app", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "queue", "number": 2, "label": "timer queue decouples execution", "mode": "CODE", "strategy_ref": "code.timer-contract", "svg_label": "02", "code_ref": "include/FreeRTOSConfig.h:29", "description": "Długość 8 ogranicza pending commands.", "evidence": "configTIMER_QUEUE_LENGTH.", "strategy": { "id": "task01/a1/context/queue", "kind": "code", "action": "open", "expected_observations": [ "daemon ma priorytet 3 i własny stack", "jeden callback rozróżnia dwa IDs" ], "assertions": [ "callback nie blokuje", "TimerHandle_t nie jest application task handle" ], "evidence_fields": [ "code_ref", "config", "symbol" ], "prerequisites": [ "źródło FC06" ], "layout": [ "FreeRTOSConfig", "TimerTag", "callback" ], "commands": [ "rg -n 'configTIMER|TimerTag|fc06_timer_callback' include src" ], "template_id": "code.timer-contract" } }, { "id": "daemon", "number": 3, "label": "daemon owns command processing", "mode": "RUN", "event_id": "E04", "strategy_ref": "run.callback", "svg_label": "03", "code_ref": "src/tasks/task01_software_timers.c:77", "snapshot_ref": "task01.auto-1", "description": "Callback widzi daemon handle.", "evidence": "daemon priority 3.", "strategy": { "id": "task01/a1/context/daemon", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "lists", "number": 4, "label": "active lists hold expiry", "mode": "RUN", "event_id": "E03", "strategy_ref": "run.commands", "svg_label": "04", "code_ref": "src/tasks/task01_software_timers.c:131", "snapshot_ref": "task01.reset", "description": "Reset przesuwa one-shot.", "evidence": "brak callbacku w tick 5.", "strategy": { "id": "task01/a1/context/lists", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "callback", "number": 5, "label": "callback records only", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.callback", "svg_label": "05", "code_ref": "src/tasks/task01_software_timers.c:68", "snapshot_ref": "task01.one-shot", "description": "Krótka funkcja na daemon stack.", "evidence": "one_shot_count=1.", "strategy": { "id": "task01/a1/context/callback", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } } ] } ] }, "tile": { "index": 1, "count": 1, "row": 1, "column": 1, "rows": 1, "columns": 1, "x": 0.0, "y": 0.0, "width": 514.0, "height": 466.0, "full_x": 0.0, "full_y": 0.0, "full_width": 514.0, "full_height": 466.0, "page_width": 940.0, "page_height": 560.0, "overview": true, "step_ids": [ "app", "callback", "daemon", "lists", "queue" ] }, "diagram_title": "A1 · granice timer service", "diagram_block_label": "A1 CONTEXT", "diagram_description": "Dwie płaszczyzny: application command i daemon execution.", "diagram_phase_labels": [ "COMMAND / DAEMON / CALLBACK" ] } ], "steps": [], "spread_group": "", "spread_label": "A1 CONTEXT — controller, command queue, daemon i callback.", "spread_columns": 1, "spread_index": 1, "spread_count": 1, "page_orientation": "landscape" }, { "id": "section-2-content", "index": 2, "title": "A3 — Dispatch", "show_heading": false, 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TITLESoftware timers i timer daemon
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD06/15
SHEET3/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID40613f0f-6688-53f0-8c20-e87c6ef73c4eCARD UUIDab188300-f03d-5ddb-8316-b9534876a5bcAUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-software-timers
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/ab188300-f03d-5ddb-8316-b9534876a5bc
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", "content_html": "", "tasks": [], "assets": [ { "label": "fig:a3-dispatch", "logical_label": "fig:a3-dispatch", "figure_number": 2, "caption": "A3 DISPATCH — jeden callback i dwa typowane IDs. — część 1/1 (r1 c1)", "alt": "Mechanizm dispatch software timera.", "href": "figures/a3-dispatch.svg", "source_href": "figures/a3-dispatch.puml", "width": 1.0, "kind": "diagram", "interactive": { "kind": "uml-class", "storage_key": "fc06-a3-dispatch-tile-1", "title": "A3 · callback dispatch", "task": { "id": "task01", "label": "Task01 · software timers" }, "block": { "id": "a3", "label": "A3 DISPATCH", "description": "Handle → Timer_t → callback → TimerTag." }, "phases": [ { "id": "dispatch", "label": "HANDLE / ID / CALLBACK", "steps": [ { "id": "handle", "number": 1, "label": "opaque handle identifies Timer_t", "mode": "CODE", "strategy_ref": "code.timer-contract", "svg_label": "01", "code_ref": "include/task01_software_timers.h:37", "description": "Aplikacja nie czyta pól Timer_t.", "evidence": "TimerHandle_t.", "strategy": { "id": "task01/a3/dispatch/handle", "kind": "code", "action": "open", "expected_observations": [ "daemon ma priorytet 3 i własny stack", "jeden callback rozróżnia dwa IDs" ], "assertions": [ "callback nie blokuje", "TimerHandle_t nie jest application task handle" ], "evidence_fields": [ "code_ref", "config", "symbol" ], "prerequisites": [ "źródło FC06" ], "layout": [ "FreeRTOSConfig", "TimerTag", "callback" ], "commands": [ "rg -n 'configTIMER|TimerTag|fc06_timer_callback' include src" ], "template_id": "code.timer-contract" } }, { "id": "timer", "number": 2, "label": "kernel stores callback and ID", "mode": "CODE", "strategy_ref": "code.timer-contract", "svg_label": "02", "code_ref": "src/tasks/task01_software_timers.c:249", "description": "xTimerCreate wiąże funkcję z TimerTag.", "evidence": "one-shot i auto.", "strategy": { "id": "task01/a3/dispatch/timer", "kind": "code", "action": "open", "expected_observations": [ "daemon ma priorytet 3 i własny stack", "jeden callback rozróżnia dwa IDs" ], "assertions": [ "callback nie blokuje", "TimerHandle_t nie jest application task handle" ], "evidence_fields": [ "code_ref", "config", "symbol" ], "prerequisites": [ "źródło FC06" ], "layout": [ "FreeRTOSConfig", "TimerTag", "callback" ], "commands": [ "rg -n 'configTIMER|TimerTag|fc06_timer_callback' include src" ], "template_id": "code.timer-contract" } }, { "id": "callback", "number": 3, "label": "daemon invokes shared callback", "mode": "RUN", "event_id": "E04", "strategy_ref": "run.callback", "svg_label": "03", "code_ref": "src/tasks/task01_software_timers.c:68", "snapshot_ref": "task01.auto-1", "description": "Wywołanie jest synchroniczne w daemon task.", "evidence": "PC w callback, daemon SP.", "strategy": { "id": "task01/a3/dispatch/callback", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "tag", "number": 4, "label": "pvTimerID restores kind", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.callback", "svg_label": "04", "code_ref": "src/tasks/task01_software_timers.c:70", "snapshot_ref": "task01.one-shot", "description": "Marker chroni kontrakt context.", "evidence": "ONE_SHOT versus AUTO.", "strategy": { "id": "task01/a3/dispatch/tag", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "evidence", "number": 5, "label": "callback commits bounded record", "mode": "RUN", "event_id": "E08", "strategy_ref": "run.callback", "svg_label": "05", "code_ref": "src/tasks/task01_software_timers.c:89", "snapshot_ref": "task01.auto-3", "description": "Payload to expiry tick.", "evidence": "E08 tick 7.", "strategy": { "id": "task01/a3/dispatch/evidence", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } } ] } ] }, "tile": { "index": 1, "count": 1, "row": 1, "column": 1, "rows": 1, "columns": 1, "x": 0.0, "y": 0.0, "width": 895.0, "height": 138.0, "full_x": 0.0, "full_y": 0.0, "full_width": 895.0, "full_height": 138.0, "page_width": 940.0, "page_height": 560.0, "overview": true, "step_ids": [ "callback", "evidence", "handle", "tag", "timer" ] }, "diagram_title": "A3 · callback dispatch", "diagram_block_label": "A3 DISPATCH", "diagram_description": "Handle → Timer_t → callback → TimerTag.", "diagram_phase_labels": [ "HANDLE / ID / CALLBACK" ] } ], "steps": [], "spread_group": "", "spread_label": "A3 DISPATCH — jeden callback i dwa typowane IDs.", "spread_columns": 1, "spread_index": 1, "spread_count": 1, "page_orientation": "landscape" }, { "id": "section-3-content", "index": 3, "title": "A5 — Flow", "show_heading": false, "toc_entry": true, "header_html": "
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TITLESoftware timers i timer daemon
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD06/15
SHEET4/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID40613f0f-6688-53f0-8c20-e87c6ef73c4eCARD UUIDab188300-f03d-5ddb-8316-b9534876a5bcAUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-software-timers
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/ab188300-f03d-5ddb-8316-b9534876a5bc
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", "content_html": "", "tasks": [], "assets": [ { "label": "fig:a5-flow", "logical_label": "fig:a5-flow", "figure_number": 3, "caption": "A5 FLOW — one-shot reset i auto period change. — część 1/1 (r1 c1)", "alt": "Sekwencja controller, daemon i timers.", "href": "figures/a5-flow.svg", "source_href": "figures/a5-flow.puml", "width": 1.0, "kind": "diagram", "interactive": { "kind": "uml-sequence", "storage_key": "fc06-a5-flow-tile-1", "title": "A5 · timer replay", "task": { "id": "task01", "label": "Task01 · software timers" }, "block": { "id": "a5", "label": "A5 FLOW", "description": "E01–E10: enqueue, process, expiry i PASS." }, "phases": [ { "id": "flow", "label": "COMMANDS / EXPIRY / PASS", "steps": [ { "id": "config", "number": 1, "label": "configuration committed", "mode": "RUN", "event_id": "E01", "strategy_ref": "run.commands", "svg_label": "01", "code_ref": "src/tasks/task01_software_timers.c:247", "snapshot_ref": "task01.config", "description": "Timer objects jeszcze nie istnieją.", "evidence": "event count 1.", "strategy": { "id": "task01/a5/flow/config", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "start", "number": 2, "label": "two starts accepted", "mode": "RUN", "event_id": "E02", "strategy_ref": "run.commands", "svg_label": "02", "code_ref": "src/tasks/task01_software_timers.c:122", "snapshot_ref": "task01.started", "description": "Daemon przetwarza dwa commands.", "evidence": "start_accepted=1.", "strategy": { "id": "task01/a5/flow/start", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "reset", "number": 3, "label": "one-shot reset at tick 1", "mode": "RUN", "event_id": "E03", "strategy_ref": "run.commands", "svg_label": "03", "code_ref": "src/tasks/task01_software_timers.c:131", "snapshot_ref": "task01.reset", "description": "Expiry przesuwa się z 5 do 6.", "evidence": "reset_accepted=1.", "strategy": { "id": "task01/a5/flow/reset", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "auto1", "number": 4, "label": "auto callback at tick 2", "mode": "RUN", "event_id": "E04", "strategy_ref": "run.callback", "svg_label": "04", "code_ref": "src/tasks/task01_software_timers.c:87", "snapshot_ref": "task01.auto-1", "description": "Pierwszy period=2.", "evidence": "auto_count=1.", "strategy": { "id": "task01/a5/flow/auto1", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "auto2", "number": 5, "label": "auto callback at tick 4", "mode": "RUN", "event_id": "E05", "strategy_ref": "run.callback", "svg_label": "05", "code_ref": "src/tasks/task01_software_timers.c:87", "snapshot_ref": "task01.auto-2", "description": "Drugi period=2.", "evidence": "auto_count=2.", "strategy": { "id": "task01/a5/flow/auto2", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "change", "number": 6, "label": "period changed to 3", "mode": "RUN", "event_id": "E06", "strategy_ref": "run.commands", "svg_label": "06", "code_ref": "src/tasks/task01_software_timers.c:147", "snapshot_ref": "task01.period-change", "description": "Nowy termin liczony od change command.", "evidence": "change_accepted=1.", "strategy": { "id": "task01/a5/flow/change", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "one", "number": 7, "label": "one-shot callback at tick 6", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.callback", "svg_label": "07", "code_ref": "src/tasks/task01_software_timers.c:96", "snapshot_ref": "task01.one-shot", "description": "Fires exactly once.", "evidence": "count=1, tick=6.", "strategy": { "id": "task01/a5/flow/one", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "auto3", "number": 8, "label": "auto callback at tick 7", "mode": "RUN", "event_id": "E08", "strategy_ref": "run.callback", "svg_label": "08", "code_ref": "src/tasks/task01_software_timers.c:87", "snapshot_ref": "task01.auto-3", "description": "Nowy okres wynosi 3.", "evidence": "4→7.", "strategy": { "id": "task01/a5/flow/auto3", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "stop", "number": 9, "label": "auto stop accepted", "mode": "RUN", "event_id": "E09", "strategy_ref": "run.commands", "svg_label": "09", "code_ref": "src/tasks/task01_software_timers.c:163", "snapshot_ref": "task01.stopped", "description": "Controller kończy po trzech callbackach.", "evidence": "controller_done=1.", "strategy": { "id": "task01/a5/flow/stop", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "pass", "number": 10, "label": "verifier commits PASS", "mode": "RUN", "event_id": "E10", "strategy_ref": "run.pass", "svg_label": "10", "code_ref": "src/tasks/task01_software_timers.c:194", "snapshot_ref": "task01.pass", "description": "Timeline, handles, stacks i digest.", "evidence": "PASS=1.", "strategy": { "id": "task01/a5/flow/pass", "kind": "run", "action": "replay", "expected_observations": [ "auto 2/4/7", "one-shot 6 raz" ], "assertions": [ "10 records", "digest stabilny" ], "evidence_fields": [ "PASS", "timeline", "digest", "ELF hash", "timestamp" ], "prerequisites": [ "controller_done=1" ], "layout": [ "timeline", "counts", "digest" ], "commands": [ "print g_fc06", "print g_fc06_pass" ], "template_id": "run.pass" } } ] } ] }, "tile": { "index": 1, "count": 1, "row": 1, "column": 1, "rows": 1, "columns": 1, "x": 0.0, "y": 0.0, "width": 906.0, "height": 380.0, "full_x": 0.0, "full_y": 0.0, "full_width": 906.0, "full_height": 380.0, "page_width": 940.0, "page_height": 560.0, "overview": true, "step_ids": [ "auto1", "auto2", "auto3", "change", "config", "one", "pass", "reset", "start", "stop" ] }, "diagram_title": "A5 · timer replay", "diagram_block_label": "A5 FLOW", "diagram_description": "E01–E10: enqueue, process, expiry i PASS.", "diagram_phase_labels": [ "COMMANDS / EXPIRY / PASS" ] } ], "steps": [], "spread_group": "", "spread_label": "A5 FLOW — one-shot reset i auto period change.", "spread_columns": 1, "spread_index": 1, "spread_count": 1, "page_orientation": "landscape" }, { "id": "section-4-content", "index": 4, "title": "A6 — State", "show_heading": false, "toc_entry": true, "header_html": "
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TITLESoftware timers i timer daemon
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD06/15
SHEET5/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID40613f0f-6688-53f0-8c20-e87c6ef73c4eCARD UUIDab188300-f03d-5ddb-8316-b9534876a5bcAUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-software-timers
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/ab188300-f03d-5ddb-8316-b9534876a5bc
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", "content_html": "", "tasks": [], "assets": [ { "label": "fig:a6-state", "logical_label": "fig:a6-state", "figure_number": 4, "caption": "A6 STATE — command pending, active, callback i reload. — część 1/1 (r1 c1)", "alt": "Maszyna stanów software timera.", "href": "figures/a6-state.svg", "source_href": "figures/a6-state.puml", "width": 1.0, "kind": "diagram", "interactive": { "kind": "uml-class", "storage_key": "fc06-a6-state-tile-1", "title": "A6 · timer lifecycle", "task": { "id": "task01", "label": "Task01 · software timers" }, "block": { "id": "a6", "label": "A6 STATE", "description": "Stan logiczny timera i pending command." }, "phases": [ { "id": "state", "label": "INACTIVE / ACTIVE / CALLBACK", "steps": [ { "id": "inactive", "number": 1, "label": "new timer is inactive", "mode": "CODE", "strategy_ref": "code.timer-contract", "svg_label": "01", "code_ref": "src/tasks/task01_software_timers.c:249", "description": "Create nie startuje timera.", "evidence": "Brak expiry przed command.", "strategy": { "id": "task01/a6/state/inactive", "kind": "code", "action": "open", "expected_observations": [ "daemon ma priorytet 3 i własny stack", "jeden callback rozróżnia dwa IDs" ], "assertions": [ "callback nie blokuje", "TimerHandle_t nie jest application task handle" ], "evidence_fields": [ "code_ref", "config", "symbol" ], "prerequisites": [ "źródło FC06" ], "layout": [ "FreeRTOSConfig", "TimerTag", "callback" ], "commands": [ "rg -n 'configTIMER|TimerTag|fc06_timer_callback' include src" ], "template_id": "code.timer-contract" } }, { "id": "active", "number": 2, "label": "processed start makes active", "mode": "RUN", "event_id": "E02", "strategy_ref": "run.commands", "svg_label": "02", "code_ref": "src/tasks/task01_software_timers.c:122", "snapshot_ref": "task01.started", "description": "Daemon dodaje timer do active list.", "evidence": "Commands accepted.", "strategy": { "id": "task01/a6/state/active", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "pending", "number": 3, "label": "reset/change travel through queue", "mode": "RUN", "event_id": "E06", "strategy_ref": "run.commands", "svg_label": "03", "code_ref": "src/tasks/task01_software_timers.c:147", "snapshot_ref": "task01.period-change", "description": "Stan przejściowy jest asynchroniczny.", "evidence": "pdPASS przed kolejnym expiry.", "strategy": { "id": "task01/a6/state/pending", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "callback", "number": 4, "label": "expiry invokes callback", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.callback", "svg_label": "04", "code_ref": "src/tasks/task01_software_timers.c:68", "snapshot_ref": "task01.one-shot", "description": "Callback działa w daemon task.", "evidence": "tick 6.", "strategy": { "id": "task01/a6/state/callback", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "reload", "number": 5, "label": "auto timer reloads", "mode": "RUN", "event_id": "E08", "strategy_ref": "run.callback", "svg_label": "05", "code_ref": "src/tasks/task01_software_timers.c:80", "snapshot_ref": "task01.auto-3", "description": "One-shot nie wraca do active list.", "evidence": "auto_count=3.", "strategy": { "id": "task01/a6/state/reload", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "stopped", "number": 6, "label": "stop removes active timer", "mode": "RUN", "event_id": "E09", "strategy_ref": "run.commands", "svg_label": "06", "code_ref": "src/tasks/task01_software_timers.c:163", "snapshot_ref": "task01.stopped", "description": "Brak czwartego callbacku.", "evidence": "stop_accepted=1.", "strategy": { "id": "task01/a6/state/stopped", "kind": "run", "action": "replay", "expected_observations": [ "pdPASS oznacza enqueue", "callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } } ] } ] }, "tile": { "index": 1, "count": 1, "row": 1, "column": 1, "rows": 1, "columns": 1, "x": 0.0, "y": 0.0, "width": 895.0, "height": 161.0, "full_x": 0.0, "full_y": 0.0, "full_width": 895.0, "full_height": 161.0, "page_width": 940.0, "page_height": 560.0, "overview": true, "step_ids": [ "active", "callback", "inactive", "pending", "reload", "stopped" ] }, "diagram_title": "A6 · timer lifecycle", "diagram_block_label": "A6 STATE", "diagram_description": "Stan logiczny timera i pending command.", "diagram_phase_labels": [ "INACTIVE / ACTIVE / CALLBACK" ] } ], "steps": [], "spread_group": "", "spread_label": "A6 STATE — command pending, active, callback i reload.", "spread_columns": 1, "spread_index": 1, "spread_count": 1, "page_orientation": "landscape" }, { "id": "section-5-content", "index": 5, "title": "A7 — Runtime", "show_heading": false, "toc_entry": true, "header_html": "
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TITLESoftware timers i timer daemon
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD06/15
SHEET6/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID40613f0f-6688-53f0-8c20-e87c6ef73c4eCARD UUIDab188300-f03d-5ddb-8316-b9534876a5bcAUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-software-timers
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/ab188300-f03d-5ddb-8316-b9534876a5bc
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"callback następuje później" ], "assertions": [ "zero block time", "queue length 8" ], "evidence_fields": [ "event", "accepted", "tick", "PC", "timestamp" ], "prerequisites": [ "Hazard3 online", "czysta RAM" ], "layout": [ "controller", "timer queue", "daemon", "active lists" ], "commands": [ "print g_fc06.start_accepted", "print g_fc06.reset_accepted", "print g_fc06.change_accepted" ], "template_id": "run.commands" } }, { "id": "daemon", "number": 3, "label": "daemon executes callbacks", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.callback", "svg_label": "03", "code_ref": "src/tasks/task01_software_timers.c:77", "snapshot_ref": "task01.one-shot", "description": "Priority 3 i callback_sp.", "evidence": "daemon_seen != controller.", "strategy": { "id": "task01/a7/runtime/daemon", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "one", "number": 4, "label": "one-shot expires once", "mode": "RUN", "event_id": "E07", "strategy_ref": "run.callback", "svg_label": "04", "code_ref": "src/tasks/task01_software_timers.c:94", "snapshot_ref": "task01.one-shot", "description": "Reset ustala tick 6.", "evidence": "count=1.", "strategy": { "id": "task01/a7/runtime/one", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "auto", "number": 5, "label": "auto timer owns changing period", "mode": "RUN", "event_id": "E08", "strategy_ref": "run.callback", "svg_label": "05", "code_ref": "src/tasks/task01_software_timers.c:80", "snapshot_ref": "task01.auto-3", "description": "Period change zachowuje ten sam handle.", "evidence": "2/4/7.", "strategy": { "id": "task01/a7/runtime/auto", "kind": "run", "action": "replay", "expected_observations": [ "callback wykonuje daemon", "ID wskazuje TimerTag" ], "assertions": [ "daemon != controller", "callback SP != controller SP" ], "evidence_fields": [ "timer kind", "daemon handle", "SP", "tick" ], "prerequisites": [ "timer active" ], "layout": [ "callback source", "pvTimerID", "daemon TCB", "SP" ], "commands": [ "print g_fc06.daemon_seen", "print g_fc06.callback_sp", "print g_fc06.auto_tick" ], "template_id": "run.callback" } }, { "id": "events", "number": 6, "label": "ten records form digest", "mode": "RUN", "event_id": "E10", "strategy_ref": "run.pass", "svg_label": "06", "code_ref": "src/tasks/task01_software_timers.c:208", "snapshot_ref": "task01.pass", "description": "Marker każdego rekordu jest zapisywany na końcu.", "evidence": "stable digest.", "strategy": { "id": "task01/a7/runtime/events", "kind": "run", "action": "replay", "expected_observations": [ "auto 2/4/7", "one-shot 6 raz" ], "assertions": [ "10 records", "digest stabilny" ], "evidence_fields": [ "PASS", "timeline", "digest", "ELF hash", "timestamp" ], "prerequisites": [ "controller_done=1" ], "layout": [ "timeline", "counts", "digest" ], "commands": [ "print g_fc06", "print g_fc06_pass" ], "template_id": "run.pass" } } ] } ] }, "tile": { "index": 1, "count": 1, "row": 1, "column": 1, "rows": 1, "columns": 1, "x": 0.0, "y": 0.0, "width": 706.0, "height": 351.0, "full_x": 0.0, "full_y": 0.0, "full_width": 706.0, "full_height": 351.0, 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TITLESoftware timers i timer daemon
VER.v00.01
DATETIME2026-07-19T00:00:00+02:00
PROJECTFreestanding C nad FreeRTOS
SERIESFreeRTOS C
CARD06/15
SHEET7/7
SUBJ.Inf.
PROG.—
CORE—
SCOPE—
LEVEL—
POS.—
GITEA UUID40613f0f-6688-53f0-8c20-e87c6ef73c4eCARD UUIDab188300-f03d-5ddb-8316-b9534876a5bcAUTHOR  M. Pabiszczak
GITEA  https://zsl-gitea.mpabi.pl/edu-freertos-c/lab-rv32i-freertos-c-software-timers
HTML  https://dce7fb9d-7b2f-5d49-96a2-3a30d3070b84.mpabi.pl/ab188300-f03d-5ddb-8316-b9534876a5bc
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Software timer jest obsługiwany przez daemon task. API wysyła komendę, aktywna lista przechowuje expiry, a callback działa później na stosie daemon task.

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Przejdź po A1, A3, A5, A6 i A7. Odtwórz E01–E10 i rozdziel moment enqueue command od callback execution.

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Przewidź oś czasu i właściciela każdego wywołania.

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Wskaż dwa różne momenty dowodowe.

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Uwzględnij reset i change period.

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Zbadaj controller i daemon w osobnych layoutach.

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Sprawdź accepted flags i command source.

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Porównaj TimerTag, PC, SP i tick.

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Sprawdź brak czwartego callbacku i digest.

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