New 4-cyl ECU design

[AndreyB]

Because of board space limitations, cost, and the fact that my design simply don't require that much I/O, I'd really like to implement a chip similar to what's used on the MRE.

All that at the cost of going custom outside of better supported firmware space.

In the meantime we got 64 pin option where v1 is more or less a successful prototype - https://github.com/andreika-git/hellen-one/tree/master/modules/mega-mcu64/0.1 without shrinking of the MCU module.

The collaboration way would have been you making a tightly packaged mega-mcu100 module

[tmbryhn]

In the meantime we got 64 pin option where v1 is more or less a successful prototype - https://github.com/andreika-git/hellen-one/tree/master/modules/mega-mcu64/0.1 without shrinking of the MCU module.

That sounds interesting. As long as it has support for all the functions I need, I see no reason why I couldn't re-map the current pin-out on my MCU schematic to match the hellen1 64-pin module layout.

I browsed through the Hellen1 builds here:
https://github.com/rusefi/rusefi/releases?q=prerelease%3Atrue
I'm not sure which one would be right for the 64 pin module implementation (if any at this point?).
Do you have a link so I can have a look at the .ini file?

[AndreyB]

At the moment only https://github.com/rusefi/rusefi/tree/master/firmware/config/boards/hellen/small-can-board uses mm64 but that's not even an ECU