Board is developed to run a V8 Chevy Small Block engine fully sequential and provide some room to adapt for other applications. The design is based on Proteus to be able to share the same rusEFI firmware. See more details and pictures in the rusEFI Forum: https://www.rusefi.com/forum/viewtopic.php?t=2559
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STM32F427ZGT6
- 180 MHz ARM Cortex-M4
- 1MB flash
- 256 KB SRAM
- LQFP144 package
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Also fully compatible with several STM32F7 parts, including the STM32F767ZI, used on v0.1 and v0.2, as well as STM32F429ZIT6.
Sicma 56 connector and weatherproof case available at AliExpress
- 2x CAN bus
- USB 2.0 full speed (12 mbit/s), on-board or wired to connector for sealed applications
- 10-pin, 2.54mm Cortex debug header
- 10x 7A low-side outputs
- 8x 0.5A low-side outputs (2x internal)
- 8x 5V ignition (or general purpose) outputs
- H-bridge for electronic throttle (can use external A4988 stepper module alternatively)
- 11x Analog voltage inputs (2x internal)
- 4x Analog temperature (5V pullup) inputs (2x internal)
- 2x VR crank/cam/vehicle speed inputs via adapter board
- 6x hall cam/crank or digital input (2x internal)
- 2x onboard knock sensing
- Full operation from 6-24v supply
- Limited operation from 4-6v
- 5V sensor supply, 150mA, fully protected
https://github.com/tobsec/JLC-Plugin-for-KiCad/tree/2.3.0-adapt
- Main relay can only be powered from a high current low-side output (don't run it as documented from a low-side output LS13, it will not work as the relay coil always back feeds some power to the 12V_MR rail)
- Rework analog voltage input 2 (AV2) from pull-down to 2.7k pull-up for using it as a third external temperature sensor input (AT)
| No. | Pin | Description | IN / OUT | Function | Type | Drive / Signal Voltage | Notes |
|---|---|---|---|---|---|---|---|
| 1 | IGN1 | Ignition Trigger 1 | OUT | Gate Driver IC | Low Current | 5V / 12V_MR | Default 5V |
| 2 | IGN2 | Ignition Trigger 2 | OUT | Gate Driver IC | Low Current | 5V / 12V_MR | Default 5V |
| 3 | IGN3 | Ignition Trigger 3 | OUT | Gate Driver IC | Low Current | 5V / 12V_MR | Default 5V |
| 4 | IGN4 | Ignition Trigger 4 | OUT | Gate Driver IC | Low Current | 5V / 12V_MR | Default 5V |
| 5 | IGN5 | Ignition Trigger 5 | OUT | Gate Driver IC | Low Current | 5V / 12V_MR | Default 5V |
| 6 | IGN6 | Ignition Trigger 6 | OUT | Gate Driver IC | Low Current | 5V / 12V_MR | Default 5V |
| 7 | IGN7 | Ignition Trigger 7 | OUT | Gate Driver IC | Low Current | 5V / 12V_MR | Default 5V |
| 8 | IGN8 | Ignition Trigger 8 | OUT | Gate Driver IC | Low Current | 5V / 12V_MR | Default 5V |
| 9 | GND | GND | IN | Supply | - | - | - |
| 10 | GND | GND | IN | Supply | - | - | - |
| 11 | GND | GND | IN | Supply | - | - | - |
| 12 | DIGITAL_3 | Start Switch/Button Signal | IN | Digital In 12V | Schmitt Trigger | PullDown | Rework to PullDown |
| 13 | DIGITAL_VR_1 | Crank Sensor | IN | HALL / VR In | Schmitt Trigger | PullUp 5V | Default HALL (opt. VR Cond. Circuit) |
| 14 | DIGITAL_VR_4 | Cam Sensor | IN | HALL / VR In | Schmitt Trigger | PullUp 5V | Default HALL (opt. VR Cond. Circuit) |
| 15 | LS4 | Injector 4 | OUT | Low Side Switch | High Current 7A | - | - |
| 16 | LS3 | Injector 3 | OUT | Low Side Switch | High Current 7A | - | - |
| 17 | LS2 | Injector 2 | OUT | Low Side Switch | High Current 7A | - | - |
| 18 | LS1 | Injector 1 | OUT | Low Side Switch | High Current 7A | - | - |
| 19 | LS9 | Spare (e.g. Boost Control) | OUT | Low Side Switch | High Current 7A | - | - |
| 20 | LS10 | Main Relay Drive | OUT | Low Side Switch | High Current 7A | - | - |
| 21 | GND | Knock Sensor 2 - | IN | Knock Sensing | - | - | - |
| 22 | LS5 | Injector 5 | OUT | Low Side Switch | High Current 7A | - | - |
| 23 | LS6 | Injector 6 | OUT | Low Side Switch | High Current 7A | - | - |
| 24 | LS7 | Injector 7 | OUT | Low Side Switch | High Current 7A | - | - |
| 25 | LS8 | Injector 8 | OUT | Low Side Switch | High Current 7A | - | - |
| 26 | 12V_RAW (+ DIGITAL_2) | Ignition (KL15) | IN | Supply | - | - | |
| 27 | ETB1- | ETB M- / Idle Stepper A2 | OUT | H Bridge (opt. Stepper) | - | - | - |
| 28 | ETB1+ | ETB M+ / Idle Stepper A1 | OUT | H Bridge (opt. Stepper) | - | - | - |
| 29 | CAN+ | CAN1 H | IN / OUT | O2 Sensor CAN (500kbps) | - | - | Internal 120 Ohm CAN Termination R |
| 30 | CAN- | CAN1 L | IN / OUT | O2 Sensor CAN (500kbps) | - | - | Internal 120 Ohm CAN Termination R |
| 31 | CAN2+ | CAN2 H | IN / OUT | NMEA2000 CAN (250kbps) | - | - | Internal 120 Ohm CAN Termination R |
| 32 | CAN2- | CAN2 L | IN / OUT | NMEA2000 CAN (250kbps) | - | - | Internal 120 Ohm CAN Termination R |
| 33 | KNOCK_2 | Knock Sensor 2 + | IN | Knock Sensing | - | - | - |
| 34 | AT1 | Water Temperature Sensor | IN | Analog Temp | - | - | - |
| 35 | AV9 | PPS2 (Idle Stepper B2) | IN (OUT) | Analog (opt. Stepper) | - | - | Default Pedal Position Sensor 2 |
| 36 | AV8 | PPS1 (Idle Stepper B1) | IN (OUT) | Analog (opt. Stepper) | - | - | Default Pedal Position Sensor 1 |
| 37 | AV6 | ETB TPS2 | IN | Analog Voltage | - | - | - |
| 38 | AV3 | Water Pressure Sensor | IN | Analog Voltage | - | - | - |
| 39 | AV5 | ETB TPS1 | IN | Analog Voltage | - | - | - |
| 40 | LS11_F | Tacho Out | OUT | Low Side + PullUp | Low Current 0.5A | 5V / 12V_MR | Default PullUp to 12V_MR |
| 41 | LS15_F | Starter Relay Drive | OUT | Low Side Switch | Low Current 0.5A | - | - |
| 42 | LS13_F | OUT | Low Side Switch | Low Current 0.5A | - | Don't use for MR! | |
| 43 | 12V_MR | Power (from Main Relay) | IN | Supply | - | - | - |
| 44 | 12V_MR | Power (from Main Relay) | IN | Supply | - | - | - |
| 45 | 5V_SENSOR_1 | Sensor Supply 5V | OUT | Analog Supply 150mA | - | - | - |
| 46 | GND | Sensor GND | OUT | Analog GND | - | - | - |
| 47 | KNOCK_1 | Knock Sensor 1 + | IN | Knock Sensing | - | - | - |
| 48 | GND | Knock Sensor 1 - | IN | Knock Sensing | - | - | - |
| 49 | AT2 | Oil Temperature Sensor | IN | Analog Temp | - | - | - |
| 50 | AV7 | Fuel Pressure Sensor | IN | Analog Voltage | - | - | - |
| 51 | AV2 | IAT Sensor | IN | Analog |
- | - | Rework PullUp for Temp Sensing |
| 52 | AV4 | Oil Pressure Sensor | IN | Analog Voltage | - | - | - |
| 53 | AV1 | MAP Sensor | IN | Analog Voltage | - | - | - |
| 54 | LS12_F | Audio Warning Horn / MIL | OUT | Low Side Switch | Low Current 0.5A | - | - |
| 55 | LS16_F | Fuel Pump Relay Drive | OUT | Low Side Switch | Low Current 0.5A | - | - |
| 56 | LS14_F | Spare (e.g. Boost Control) | OUT | Low Side Switch | Low Current 0.5A | - | - |