[Ovmsdev] Not processing canbus frames anymore

[Michael Balzer]

That looks like RX was working normally, but all TX was just queued.

Just a thought: is it possible the ESP32CAN TX buffer is sometimes 
unavailable on the first frame transmission (or appears to be), not due 
to an actual frame blocking the buffer, but due to some kind of init 
race condition?

That would lead to esp32can::WriteFrame() returning FAIL causing the 
frame to be queued in m_txqueue, but as there is no real TX going on at 
that moment, there never will be a TX callback, so the m_txqueue will 
grow indefinitely from there on.

Regards,
Michael


Am 14.04.22 um 00:51 schrieb Craig Leres:
> Here is can bus status for my Corvette after 4 run cycles in which it 
> was never able to transmit frames on can1.
>
>         Craig
>
> OVMS# can can1 status
> CAN:       can1
> Mode:      Active
> Speed:     500000
> DBC:       none
>
> Interrupts:             5115225
> Rx pkt:                 4236787
> Rx ovrflw:                    0
> Tx pkt:                       0
> Tx delays:                   30
> Tx ovrflw:                28916
> Tx fails:                   840
>
> Err flags: 0x00000000
> Rx err:                       0
> Tx err:                       0
> Rx invalid:                   0
> Wdg Resets:                   0
> Wdg Timer:                    3 sec(s)
> Err Resets:                   0 

-- 
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26

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