CAN options

[rusefillc]

was NOT able to see happy CAN bus but does it look good or bad in terms of timing?

[rusefillc]

@mck1117 @dron0gus @andreika-git do you see obvious issues by any chance?

[mck1117]

Is your bus terminated? You won't see anything without a terminator.

[rusefillc]

I am connecting to https://canhacker.com/ device which has 120 OHm option checked in settings.

Or do you mean I need some changes on my WB board @mck1117 ?

[mck1117]

hah, we're not running at 72MHz, please hold

[mck1117]

Please merge in master, we now run at 64MHz. It's not actually possible to run at 72 on HSI because of the PLL's limited configuration options, so 64 is the best we can do.

[mck1117]

update: back to 48mhz with 660dad4

[rusefillc]

@mck1117 PR adjusted to 48MHz - CAN settings actually same between F0 and F1 - still failing my real HW test but maybe it's mergeable as is at least for the code comments and attempt?

[rusefillc]

logic analyzer on CAN tx

wb-can-tx.zip

[mck1117]

Looks like CAN peripheral is running at half speed (divider somewhere we forgot about?), pushed 8603450

[rusefillc]

Let's continue at #44