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PROTEUS

protean: able to do many different things; versatile.

A high-featured board compatible with rusEFI firmware.

TL;DR Proteus Manual

Goals and Non-Goals

Goals

Run my LS-swapped Volvo 240 with factory harness and equipment
Run a sequential ignition, quad-VVT v12 engine (twelve injectors, twelve ignition, five hall sensors, four VVT actuators, dual throttles)
Easily manufactured sealed enclosure (all connectors mount in-plane)
Extensible for knock sensing

Non-goals

~Internal logging (doesn't make sense with 12 mbit/s USB, and a sealed enclosure)~ Version 0.4 has an SD card!
Direct injection
Cheap

Hardware Features

Microcontroller

STM32F429ZG
- 180 MHz ARM Cortex-M7
- 1MB flash
- 256 KB SRAM
- LQFP144 package
Also fully compatible with several STM32F7 parts, including the STM32F767ZI, used on v0.1 and v0.2, as well as STM32F429ZIT6.

Connectors

TE Connectivity AMPSEAL connectors:

2x 35 pin connectors
- Board: TE 776231-1 (black, right) and 776231-2 (white, left)
- Plug: TE 776164-1 (black, right) and 776164-2 (white, left)
1x 23 pin connector
- Board: TE 776228-1
- Plug: TE 770680-1
770854-1 terminals

Connectivity

1 mbit/s CAN bus
USB 2.0 full speed (12 mbit/s), on-board or wired to connector for sealed applications
10-pin, 1.27mm Cortex debug header

Outputs

16x 4A low-side drivers
12x 5v ignition (or general purpose) outputs
Dual H-bridges for electronic throttle (also supports stepper idle valve!)
4x 12v 3A high-side outputs

Inputs

11x Analog voltage inputs
4x Analog temperature (5v pullup) inputs
2x VR crank/cam/vehicle speed inputs
6x hall cam/crank or digital input

Power Supply

Full operation from 6-24v supply
Limited operation from 4-6v
Dual 5v sensor supplies, 150mA each, fully protected
Dual protected 12v external sensor supply

Extensibility

10-pin internal header for knock expansion board. We aren't confident in any one knock sensing design yet, so it's most useful to be able to swap it out without replacing the whole ECU.