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marte-debug/API.md
2026-02-21 20:20:08 +01:00

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API Documentation

1. TCP Control Interface (Port 8080)

1.1 TREE

Retrieves the full object hierarchy.

  • Request: TREE
  • Response: JSON_OBJECT OK TREE

1.2 DISCOVER

Lists all registrable signals and their metadata.

  • Request: DISCOVER
  • Response: {"Signals": [...]} OK DISCOVER

1.3 TRACE <path> <state>

Enables/disables telemetry for a signal.

  • Example: TRACE App.Data.Timer.Counter 1
  • Response: OK TRACE <match_count>

1.4 FORCE <path> <value>

Overrides a signal value in memory.

  • Example: FORCE App.Data.DDB.Signal 123.4
  • Response: OK FORCE <match_count>

1.5 PAUSE / RESUME

Controls global execution state via the Scheduler.

  • Request: PAUSE
  • Response: OK

2. UDP Telemetry Format (Port 8081)

Telemetry packets are Little-Endian and use #pragma pack(1).

2.1 TraceHeader (20 Bytes)

Offset Type Name Description
0 uint32 magic Always 0xDA7A57AD
4 uint32 seq Incremental sequence number
8 uint64 timestamp High-resolution timestamp
16 uint32 count Number of samples in payload

2.2 Sample Entry

Offset Type Name Description
0 uint32 id Internal Signal ID (from DISCOVER)
4 uint32 size Data size in bytes
8 Bytes data Raw signal memory