> On 08.09.2022 21:57:16, Marc Kleine-Budde wrote: > > > Thanks for your work on this! May I ask why Phase Seg2 / 2 is chosen? > > [...] > > > And I tested with SJW=max from mcp251x (not the mcp251xfd) with > SJW=max > > to a peak USB adapter with SJW=1 - the peak adapter fails to receive CAN > > frames: > > > With SJW = Phase Seg2 / 2, it works. > > Correction: > > My test: > > TX (mcp2515, 20 MHz OSC) -> RX (PEAK USB) > > Is broken [1] if the PEAK USB uses SJW==1, independent of the SJW of the > mcp2515 (the sender). > > The test works if the PEAK USB uses SJW=PhaseSeg2/2. So everything works as expected (or doesn't work, also as expected,) that's good. So, how do we move forward here? I'd still say maximizing SJW is the better thing to do but we should get definitely get it increased and if PS/2 is the compromise I can live with that(though, there are no drawbacks to PS/2 besides "compatibility"). Best Regards, Thomas
