MicroSquirt.com read only forum (Jan.15,2018)

Haha, that's funny. JHM are my real initials. It was 16 years ago... and I was going through the list trying to find an available name on AOL. Justin, JustinM, JustinHM, JustinHoMi (I laughed and went with it).

Thanks for looking into this for me.

Any update on the board dimensions or the J1 grounds?

Thanks. That is the same page that I'm looking at. The link I provided is just the right frame on that page.

Bruce gave a talk at a MegaMeet in 2008 that discussed the importance of separating signal and power grounds on the MS-I v3.0 boards. There are two major ground planes on that board which ...

I just noticed that there are some inconsistencies between pin assignments on the silk screen on the microsquirt module (v2.2M) and the documention at http://www.microsquirt.info.

Printed on the module:
Pin31 - Serial Ground
Pin33 - Sensor Ground
Pin35..43,49 - Power Ground
Pin44,46 - IGN2 Out ...

Oh, sorry, I meant "What is the reasoning behind attaching the headers to the top of the microsquirt?". Just curious, really. The only thing I can think is that you don't want the IC's to be sitting flat on another surface. But some standoffs and a project case would be a cheap remedy for this.

What's the reasoning behind this?

I just realized that in the video the microsquirt has the header soldered to the top side. So the utility board will require a dedicated microsquirt module?

Thanks. Let me know if you need any additional testing.

Any update on the utility board? This would be very useful for prototyping!

Are those serial lines logic-level, perchance?