Large-Scale ECU Variant Management

# Python script to generate DaVinci variant config for 3 ECU hardware targets
# Target A: 8MHz crystal, CAN only, 256KB Flash
# Target B: 40MHz crystal, CAN + ETH, 1MB Flash
# Target C: 40MHz crystal, CAN + LIN, 512KB Flash

VARIANT_MATRIX = {
    "ECU_A_CAN_ONLY": {
        "Can/CanGeneral/CanOscFrequency": 8000000,
        "Eth/EthGeneral/EthEnabled": False,
        "Lin/LinGeneral/LinEnabled": False,
        "NvM/NvMCommon/NvMDatasetSelectionBits": 1,  # small DATASET
    },
    "ECU_B_CAN_ETH": {
        "Can/CanGeneral/CanOscFrequency": 40000000,
        "Eth/EthGeneral/EthEnabled": True,
        "Lin/LinGeneral/LinEnabled": False,
        "NvM/NvMCommon/NvMDatasetSelectionBits": 2,
    },
    "ECU_C_CAN_LIN": {
        "Can/CanGeneral/CanOscFrequency": 40000000,
        "Eth/EthGeneral/EthEnabled": False,
        "Lin/LinGeneral/LinEnabled": True,
        "NvM/NvMCommon/NvMDatasetSelectionBits": 2,
    },
}

for variant, params in VARIANT_MATRIX.items():
    generate_davinci_variant_arxml(variant, params)

  EngineStatus_PDU
  
  TRUE




  SOMEIP_SpeedService_PDU
  HW_Target == ECU_B_CAN_ETH
  TRUE

#!/usr/bin/env python3
# CI: verify each variant's ComSignal set matches its DBC file
import can_dbc_parser, davinci_api, sys

VARIANT_DBC_MAP = {
    "ECU_A_CAN_ONLY": "ECU_A.dbc",
    "ECU_B_CAN_ETH":  "ECU_B.dbc",
    "ECU_C_CAN_LIN":  "ECU_C.dbc",
}

errors = []
for variant, dbc_file in VARIANT_DBC_MAP.items():
    project = davinci_api.load_project("ECU.dpj", variant=variant)
    dbc = can_dbc_parser.load(dbc_file)

    com_signals = {s.name for s in project.get_active_com_signals()}
    dbc_signals = {s.name for s in dbc.signals}

    in_com_not_dbc = com_signals - dbc_signals
    in_dbc_not_com = dbc_signals - com_signals

    for sig in in_com_not_dbc:
        errors.append(f"{variant}: COM signal '{sig}' not in DBC — phantom signal")
    for sig in in_dbc_not_com:
        errors.append(f"{variant}: DBC signal '{sig}' not in COM — silently missing!")

if errors:
    print("VARIANT VALIDATION FAILED:")
    for e in errors: print(f"  {e}")
    sys.exit(1)
print("All variant signal checks passed")