KopherUDS: UDS diagnostic host computer and programming tools
KopherUDS is KopherBit's UDS (ISO 14229) diagnostic host computer. It supports ECU firmware burning, DTC reading, SecurityAccess, RoutineControl, DataIdentifier reading and writing and other processes. It is compatible with CAN / CAN FD / DoIP and is compatible with KopherBoot Bootloader is tightly integrated with KopherSAR DCM/DEM.
Summary
KopherUDS is the UDS (ISO 14229) diagnostic host computer (Tester) provided by KopherBit, which can perform ECU firmware burning, DTC reading, SecurityAccess, RoutineControl, DataIdentifier (DID) reading and writing and other diagnostic services.The transport layer supports CAN, CAN FD, DoIP/Ethernet, and is closely integrated with KopherBoot UDS Bootloader, KopherSAR DCM / DEM, and the same set of tool processes can be reused in all stages of development, production line, and after-sales maintenance.
Technical Role
KopherUDS is located in the overall development chain:
- Development Phase: The developer sends a UDS service request to the ECU through KopherUDS to verify the BSW DCM/DEM behavior.
- Production line stage: As a production line burning tool, cooperate with KopherBoot to complete ECU firmware writing.
- After-sales phase: Can be used as a diagnostic tool to read DTC, clear faults, and perform special maintenance procedures (Routine Control).
KopherUDS has built-in message format encoding and decoding in compliance with ISO 14229, and provides scripted test process capabilities to facilitate OEMs or repair shops to execute repetitive diagnostic scripts.
Supported UDS services
| Service ID | Name | Purpose |
|---|---|---|
| 0x10 | DiagnosticSessionControl | Switch Default / Programming / Extended Session |
| 0x11 | ECUReset | Reset ECU (Hard / Soft / KeyOffOn) |
| 0x14 | ClearDiagnosticInformation | Clear the specified DTC |
| 0x19 | ReadDTCInformation | Read DTC list, Snapshot, Extended Data, etc. |
| 0x22 | ReadDataByIdentifier | Read the specified DID |
| 0x27 | SecurityAccess | Seed/Key Authentication |
| 0x28 | CommunicationControl | Enable/stop communication |
| 0x2E | WriteDataByIdentifier | Write the specified DID |
| 0x31 | RoutineControl | Start/Stop/Query Routine |
| 0x34 | RequestDownload | Declaration of firmware download |
| 0x36 | TransferData | Transfer data segments |
| 0x37 | RequestTransferExit | End transfer |
| 0x3E | TesterPresent | Maintain Session without timeout |
| 0x85 | ControlDTCSetting | Control DTC write enable |
Architecture
| Subsystem | Role |
|---|---|
| Transport Layer | CAN / CAN FD / DoIP/Ethernet channel management. |
| ISO-TP/DoIP | Cross-frame segment assembly and routing. |
| UDS Service Encoder/Decoder | Message encoding and decoding, compliant with ISO 14229-1. |
| Session Manager | Maintain Diagnostic Session, SecurityAccess level, Tester Present heartbeat. |
| Flash Loader | Cooperate with KopherBoot to program ECU firmware. |
| DTC Viewer | Parses 0x19 response and presents DTC list, Snapshot, and Counter. |
| Scripting | Automated scripts (production line testing, regression testing). |
| GUI | User operation interface. |
Key Capabilities
- Full UDS service set support, compliant with ISO 14229-1. -Multiple transport layers: CAN, CAN FD, DoIP, supporting simultaneous connection to multiple ECUs.
- Firmware burning process directly compatible with KopherBoot, automating SecurityAccess + Erase + Download + Verify + Reset.
- 0x19 Sub-services are fully presented: DTC list, Snapshot, Extended Data, Counter, Severity.
- Support OEM custom SecurityAccess Seed/Key algorithm plug-in.
- Scripted testing interface for easy integration into CI/production line automation.
Engineering Inputs Required
| Input | Purpose |
|---|---|
| ECU UDS Settings | SID, Sub-Function, Session switching rules in DCM configuration. |
| DTC and DID list | Used for parsing and displaying 0x19 / 0x22 / 0x2E. |
| SecurityAccess algorithm | OEM customized Seed/Key calculation logic. |
| Firmware image format | S19 / HEX / BIN, with RequestDownload process. |
| DoIP Settings (if used) | DoIP Activation Line, IP Routing, VIN/Logical Address. |
| Vehicle Manufacturer Specifications | OEM special requirements for UDS service parameters, PowerLatch, TesterPresent heartbeat. |
How KopherBit Supports This
- KopherUDS tool: complete UDS host computer, graphical operation + script automation.
- KopherBoot Integration: The burning process is completed with one click (Session switch → SecurityAccess → Erase → Download → Verify → Reset).
- KopherSAR DCM/DEM: The server corresponds to the KopherUDS client, and the agreement between both parties is complete and consistent.
- OEM customization support: Customer-customized SecurityAccess algorithm plugin and DTC display template are accepted.
FAQ
KopherUDS Difference from Vector CANoe / ETAS INCA?
KopherUDS focuses on the integration of UDS process and KopherBit ECU, with low licensing cost and direct and seamless connection between KopherBoot and KopherSAR.CANoe / INCA is a more comprehensive vehicle network and measurement platform that can coexist with KopherUDS in large projects (KopherUDS is used for KCU programming and diagnosis, and CANoe / INCA is used for vehicle network observation and calibration).
Can the script be exported to the production line for use?
Can.KopherUDS provides a script interface that can package the UDS process verified in the development stage into a production line burning/verification script and execute it on the factory PC.
Does it support DoIP?
support.ECU can be connected via Ethernet (DoIP), especially suitable for products with Ethernet such as KCU GEN2 (Phase B).
Can I try again after burning fails?
Can.KopherBoot is designed so that the ECU remains in Bootloader mode after power outage/failure. KopherUDS can restart the programming process after reconnecting.
How to read EDR event data?
EDR event data is read through the UDS 0x19 ReadDTCInformation + custom DID (0x22) process. KopherUDS can be parsed and displayed according to the data structure provided by the OEM.
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