work in progress Common Rail MC33816 dev board - 4 injectors GDI

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960
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Re: Common Rail MC33816 dev board - 4 injectors

Post by 960 »

Ah, ok..

Why not use the gerbers and bom from the OEM eval board?

It's all on NXP's site..

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AndreyB
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Re: Common Rail MC33816 dev board - 4 injectors

Post by AndreyB »

@Noxz found the issue - top side 10R resisters had 10K parts mounted by mistake. Once 10K was replaced with 10R and J5 was jumped with J6 (no idea why we have this) and DRIVEN pin was hand operated (we do not have FW for DRIVEN right now), we've got 60V on 0.3 board!

I am hoping that @Noxz would restore the damage board and add a couple of code around DRIVEN soon :)
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Re: Common Rail MC33816 dev board - 4 injectors

Post by Noxz »

Not J5 to J6, but J5 to specify to use the xtal onboard, and J6 to use supplied VccIO (which is 3v, not 3.3v, from discovery).. these are carry overs from the eval board. They will be removed for next revision (or just remember to solder-jumper/0R them and not install headers)

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Re: Common Rail MC33816 dev board - 4 injectors

Post by kb1gtt »

NXP files would make the product you can purchase from NXP. It's cheaper to just buy NXP's then it is to build your own. The goal is to have a validated KICAD project which has BOM information populated and validated footprints, which we can eventually make into our own PCB layouts.
Welcome to the friendlier side of internet crazy :)

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AndreyB
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Re: Common Rail MC33816 dev board - 4 injectors

Post by AndreyB »

We have seen these boards produce 60v while in Washington state.

Nich, Chris and Matt are now trying to get 60v produced in New Jesery. Some validation code was added today.
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Re: Common Rail MC33816 dev board - 4 injectors

Post by AndreyB »

Finally we have same board generate 60v in NJ!

This video would not have happen without Chris, Jared, Nick and Matt!

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Re: Common Rail MC33816 dev board - 4 injectors

Post by AndreyB »

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Re: Common Rail MC33816 dev board - 4 injectors

Post by AndreyB »

MC33816 boards keep travelling back and forth between New Jersey and Washington

So far a number of lessons were learned in relation to all this MC33816 drama:

10K and 10R resistors are very not interchangeable.

MC33816 likes it's 5v to be pretty close to 5v, it even has relevant status bits to report it's unhappiness about 4.x volts instead of 5v. spec'd limit of 4.75-5.25

SBR10200CTL diode while it shares package with a MOSFET does not work like a MOSFET

There is progress! it looks like we will have soon two or three boards which look and act the same!
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Re: Common Rail MC33816 dev board - 4 injectors

Post by AndreyB »

A couple HW issues reported, that's a lot of head banging :)

https://github.com/rusefi/rusefi/issues/1434
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Noxz
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Re: Common Rail MC33816 dev board - 4 injectors GDI

Post by Noxz »

This is a very useful graphic showing the main configuration points of an injection cycle
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Re: Common Rail MC33816 dev board - 4 injectors GDI

Post by AndreyB »

Q: how special are mosfters or diodes we use on the board right now? Is there a safe opportunity to replace more components with JLC parts?

We really need to simplify our assembly, we have proven that we mess things up :(
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Re: Common Rail MC33816 dev board - 4 injectors GDI

Post by AndreyB »

Version 0.3.2 of the board pushed! The board is now single-sided (still 4 layed PCB but all components are now on one side) and JLC is assembling some MOSFETs now. $130 for 5 or $190 for 10 so looking for some review before I spend the money?
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AndreyB
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Re: Common Rail MC33816 dev board - 4 injectors GDI

Post by AndreyB »

Arrived. One board goes to WA.
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Re: Common Rail MC33816 dev board - 4 injectors GDI

Post by sordfish »

Nice progress!

Are there any boards available to the UK?

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Re: Common Rail MC33816 dev board - 4 injectors GDI

Post by AndreyB »

sordfish wrote:
Mon Jul 06, 2020 9:27 am
Are there any boards available to the UK?
All the files to fab are published but those boards are a bit useless until the software is done.
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