01 Getting Started
Specifications
Electrical, I/O and environmental numbers for Race Core F7.
6 min readUpdated 2026-08
- MCU
- STM32F767ZI, Cortex-M7 @ 216 MHz
- Flash / SRAM
- 2 MB / 512 KB
- Supply
- 6–24 V full, 4–6 V limited
- Connectors
- AMPSEAL 35 + 23 + 35
- USB
- USB-C serial on the enclosure
- Firmware
- rusEFI · FOME · Core EFI
- Logging
- 64 GB internal, up to 50 Hz
Inputs and outputs
| Resource | Count | Rating / notes |
|---|---|---|
| Low-side drivers | 16 | 4 A each, flyback protected — injectors, relays, solenoids |
| Ignition outputs | 12 | 5 V logic, smart coils / external igniters only |
| High-side outputs | 4 | 12 V / 3 A |
| H-bridges | 2 | Electronic throttle or stepper idle |
| Analog voltage | 11 | 0–5 V, protected, weak pull-down |
| Analog thermistor | 4 | 5 V pull-up (typ. 2.7 kΩ) |
| VR inputs | 2 | Crank / cam / VSS |
| Hall / digital | 6 | Cam, switches, Hall crank, flex |
| Knock | 2 | On-board band-pass |
| CAN | 2 × 1 Mbit/s | CAN 1 on Connector B; CAN 2 on later boards |
| 5 V sensor supplies | 2 | 150 mA each, fully protected |
| 12 V sensor supplies | 2 | Protected 12 V out on Connector C |
Race functions
| Function | What it does |
|---|---|
| Anti-lag | Retard + extra fuel + air path so the turbo stays spooled off-throttle |
| Rotational idle | High-RPM spark-cut idle on the clutch for drift initiation |
| Boost by gear | Boost target and duty per gear, from VSS/RPM or a gear sensor |
| Traction control | Slip-based spark retard then cut, from driven vs undriven speed |
| Launch / 2-step | Clutch-in RPM cap with optional boost build |
| PWM tables | Four generic 8×8 PWM maps for fans, pumps, nitrous, extras |
| Lua | Custom CAN and logic on the F7 — not a replacement for the tables above |
Environment
- 3D-printed water-resistant ABS enclosure, USB-C serial on the case. Waterproof option on request. Mount with the connectors facing down or sideways so water cannot pool in AMPSEAL cavities.
- Keep away from exhaust, turbo heat shields and ignition coils. If the case is too hot to hold, it is too hot for the MCU.
- Not a submersible ECU. AMPSEAL is splash-resistant when fully latched with a dressed loom; it is not an IP68 dive rating.
F7 versus F4
Some Proteus-family boards shipped with STM32F429 (F4). Race Core F7 is based on the F767 unit. Flash the F7 build of rusEFI, FOME or Core EFI — never an F4 bundle. F7 has more RAM for Lua, 12-cylinder sequential, a CAN dash and the race functions in this manual, plus a different bootloader recovery path — see Firmware update.