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This chip does not have MOSI (Master Out Slave Input) - there is no way to control this chip, it just constantly sends data out. That is not how SPI works. The slave does not constantly send data, it only clocks data out when the master operates the clock line. You can get the the slave to send dat...

278 RPM 2900 pulse 317 uS variation with DIYAutotune sensor modified sprocket 317/2900= 10.9% jitter 1 degree of rotation takes 599uS. So that's about .5 degree accuracy.

Yeah. I could have EASILY seen 10% jitter on the scope. That's huge.

About jitter, I though my notes were lost due to bit rot, but I see it was preserved. From here http://ecu.zeeff.com/viewtopic.php?f=33&t=275&start=37 I posted notes about the jitter we were seeing. The short version was that we were seeing jitter in the .3 degree to .5 degree range. We tri...

No promises on when I could get to it. Plus, I have zero experience with ChibiOS as well... But I will take a look at it.

Clint

Hello Clint, I think this is long time no speak :) Thanks for the content. Do you happen to know how well it handles real world jitter? We had a couple uS or perhaps it was nS of jitter in the real world from the hall sensors self adjustments. This jitter made it very hard to get sync. I fear that ...

All in all, I kind of look at it like this: A LOT of people have spent a lot of time developing dielectric grease just for this application. None of us are experts in the field of electrical contact protection, so why should we be second guessing those folks on the correct "stuff" to prote...

If the contact can't scrap the dialectric grease out of the way when the connection is made, you have a BAD connector. Look at an assembled and then removed pin from a good contact under a magnifying lamp and see how much "damage" is visible on the male pin just from being assembled and di...

Also the FS provided code is only for wheels like a 36-1, and does not support 36-1-2 or any other wheel. FS just updated the crank eTPU code recently. I haven't dug into it much at this point, but it does state that it supports user defined tooth patterns. from AN3769 : Support for wide range toot...