[Ovmsdev] OVMS Poller module/singleton

[Chris Box]

Hi.

I have now experienced some issues with this updated firmware. I drove 
the car home just fine, and parked. When I locked the car it issued a 
continuous warning tone suggesting I shouldn't leave the car in that 
state. All doors were definitely shut. I turned the car back on, and the 
dashboard said "When parked apply parking brake". But the handbrake was 
firmly on. On dismissing that, it reported "I-Key system fault". It 
wouldn't enter drive ready state.

I turned the car off, unplugged OVMS and turned on again. Errors still 
present. It told me to press the brake pedal in order to turn the car 
on. I was pressing it, but it didn't seem to recognise this.

After a while I came back and disconnected the 12V. On starting up again 
the I-Key message was still on the dash. I dismissed it, and then it 
seemed happy. OVMS is now plugged back in.

I'm guessing these errors are indicative of CAN bus problems, e.g. 
preventing communication of brake state?

Some command outputs from very recently (i.e. after the events described 
above):

OVMS# can can1 status
CAN:       can1
Mode:      Active
Speed:     500000
DBC:       none

Interrupts:             7299933
Rx pkt:                 7299698
Rx ovrflw:                    3
Tx pkt:                    1371
Tx delays:                   50
Tx ovrflw:                    0
Tx fails:                   108

Err flags: 0x008040d9
Rx err:                       0
Tx err:                     128
Rx invalid:                   0
Wdg Resets:                   0
Wdg Timer:                    8 sec(s)
Err Resets:                   0

OVMS# can can2 status
CAN:       can2
Mode:      Active
Speed:     500000
DBC:       none

Interrupts:              210984
Rx pkt:                  211985
Rx ovrflw:                    0
Tx pkt:                       8
Tx delays:                    0
Tx ovrflw:                    0
Tx fails:                     0

Err flags: 0x01000001
Rx err:                       0
Tx err:                       0
Rx invalid:                   0
Wdg Resets:                   0
Wdg Timer:                    8 sec(s)
Err Resets:                   0

How would I look for changes in can error frequency in the log?
In these numbers perhaps?

2025-01-22 17:28:17.683 GMT E (16789963) can: can2: intr=9475533 
rxpkt=9494723 txpkt=52 errflags=0x22401c02 rxerr=0 txerr=0 rxinval=0 
rxovr=0 txovr=0 txdelay=0 txfail=0 wdgreset=0 errreset=0
2025-01-22 17:28:17.693 GMT E (16789973) can: can2: intr=9475533 
rxpkt=9494724 txpkt=52 errflags=0x23401c01 rxerr=0 txerr=0 rxinval=0 
rxovr=0 txovr=0 txdelay=0 txfail=0 wdgreset=0 errreset=0

2025-01-22 21:40:18.843 GMT E (10075543) can: can2: intr=210249 
rxpkt=211242 txpkt=8 errflags=0x22401c02 rxerr=0 txerr=0 rxinval=0 
rxovr=0 txovr=0 txdelay=0 txfail=0 wdgreset=0 errreset=0
2025-01-22 21:40:18.843 GMT E (10075543) can: can2: intr=210249 
rxpkt=211243 txpkt=8 errflags=0x23401c01 rxerr=0 txerr=0 rxinval=0 
rxovr=0 txovr=0 txdelay=0 txfail=0 wdgreset=0 errreset=0

I can't see any mentions of can1 in the log, other than ovms-server-v3 
pollstats. The log is set to debug level.

I have poller times and can share those if needed.

Chris

On 2025-01-22 16:24, Michael Balzer via OvmsDev wrote:

> Chris,
> 
> typically "can can1 status" & "can can2 status" will give the 
> statistics of the buses, and "poller times on" will enable poller 
> timing statistics to be then shown by "poller times status".
> 
> The Leaf uses can2 to query these values:
> // VIN [19]
> // QC [2]
> // L0/L1/L2 [2]
> 
> ...but only when the car is on, but not in drive mode. So you should 
> check if you get these values.
> 
> It also uses can2 for TCU commands, if the model year is >= 2016.
> 
> So you should try commands and see if they work correctly.
> 
> Please also check the log for changes in can error occurence & 
> frequency.
> 
> Regards,
> Michael
> 
> On 2025-01-21 00:41, Derek Caudwell via OvmsDev wrote:
> 
> Hi Chris
> 
> Here are the required changes, as I understand them, to be compiled 
> into a new firmware from this thread: 
> https://github.com/openvehicles/Open-Vehicle-Monitoring-System-3/pull/1102/files
> 
> Cheers
> Derek
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