This chapter is an orientation to RT-STACK hardware. The KiCad schematic and PCB are the authoritative electrical reference; do not use this page as a pinout or as a substitute for inspecting the exact revision you are building.
Functional interfaces
| Area | Design capability |
|---|---|
| Fuel | 12 injector channels for general-purpose GDI/PFI architecture, with high-voltage drive support and current sensing. |
| Ignition | 12 inductive ignition channels. |
| Timing | 9 general-purpose trigger interfaces for crank, cam, turbo speed or other edge-based signals. |
| Lambda | 2 CJ125 lambda-controller interfaces. |
| Auxiliary I/O | 12 general-purpose outputs with selectable push/pull behaviour. |
| Communications | CAN and UART interfaces from the STM32G474, plus a 186-pin ECU connector. |
How to read the design
- Open the KiCad project under
HW/and identify the board revision. - Read the power-entry, ground, injector, ignition, trigger and connector sheets before designing a harness.
- Trace each external signal to its protection and driver stage.
- Record supply limits, grounds, loads and connector pins in a build-specific harness document.
First power-up
- Use a current-limited laboratory supply.
- Keep high-energy actuator supplies isolated during logic bring-up where possible.
- Fit appropriate fusing and an accessible emergency disconnect.
- Use representative loads, resistive loads or dedicated driver fixtures before coils and injectors.
Suggested screenshots: assembled board front view after the table; connector/power schematic excerpt after the design-reading steps.