Vehicle Network And DSP Control Workflow

Use one copy per vehicle and controller/DSP release. Attach diagrams, logs, raw captures, exported DSP files, interface configuration, and regression evidence.

1. Project And Vehicle Identity

Project / release:

Vehicle / year / trim / VIN-relevant configuration:

Factory audio and software:

Controller / firmware: DSP / board:

□Required sources, controls, calls, prompts, alerts, cameras, microphones, ANC and service functions listed

□Prohibited safety-critical and security domains identified

2. Vehicle Network Map

Domain / bus / gateway side / connector / physical layer / protocol / state:

□CAN, CAN FD, LIN, diagnostic, infotainment, audio and Ethernet paths separated

□Topology, termination, node roles, power, wake and sleep documented

3. Integration Boundary And Risk

Connection purpose:

Approved interface / service reference:

□Offline analysis

□Isolated bench observation

□Vehicle read-only observation with hardware transmit inhibit

□Vehicle-specific retained-function interface

□Authorized active control with separate safety approval

Bypass / original-state restoration:

4. CAN / LIN Bench Record

Controller: Transceiver: Supply:

Bus type / rate / sample point / frame or schedule:

□Correct termination and powered-off behavior verified

□Listen-only or hardware transmit inhibit verified

□Errors, bus-off, missing response, sleep and wake tested on bench

□ESP32-S3 TWAI not used on CAN FD traffic

5. Automotive Audio Network

Network / generation / profile / topology:

Payload / sample rate / word or slot / channel map:

Clock owner / receiver / decoder / renderer / SRC:

□Every audio and microphone channel identified independently

□Calls, chimes, alerts, ANC, controls, diagnostics and fallback verified

□Startup, discovery, lock, mute, disconnect and relock captured

6. Wondom / DSP Control Contract

Boot mode: self-boot / host / hybrid:

SigmaStudio project / compiler / export:

Control bus / address / voltage / speed:

Allowed named commands and ranges:

□Audio and control paths drawn separately

□Address map and fixed-point formats tied to release

□Slew, safe update, mute dependencies and readback documented

□Watchdog, communication loss and known-good reload tested

7. Wake, Sleep And Parked Current

Wake sources:

Mute / amplifier-enable sequence:

Key-off to final sleep: Final parked current:

□Crank, stop-start, brownout and retained accessory tested

□USB, programmer, diagnostic and signal back-power paths checked

□Door wake, reconnect, update, watchdog and recovery tested

8. Retained Functions And Security

□Steering-wheel and user controls

□Calls, emergency communication, navigation and assistant

□Chimes, parking and driver-assistance alerts

□Cameras, displays and source switching

□Microphones, ANC and active sound

□Scan-tool access and service bypass

□Authentication, least privilege, logging, update and rollback

9. Fault, Regression And Release

Invalid commands tested:

Faults and safe outputs:

Affected regression set:

□Bus loading, errors, parked current and diagnostics unchanged

□DSP live state matches controller, EEPROM and release record

□All retained functions, transitions, bypass and recovery pass

□Raw evidence and logs attached

Approved by / date: