[Ovmsdev] OVMS Poller module/singleton

[Chris Box]

Hi.

Initial results after 27 miles on this new timing in the Leaf 2016. No 
in-car issues yet experienced. Stats are as below.

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

Interrupts:            20760013
Rx pkt:                20753155
Rx ovrflw:                    6
Tx pkt:                    2983
Tx delays:                  103
Tx ovrflw:                    0
Tx fails:                  2527

Err flags: 0x008040d9
Rx err:                       0
Tx err:                     128
Rx invalid:                   0
Wdg Resets:                   0
Wdg Timer:                    6 sec(s)
Err Resets:                   1
OVMS# can can2 status
CAN:       can2
Mode:      Active
Speed:     500000
DBC:       none

Interrupts:            12559716
Rx pkt:                12581843
Rx ovrflw:                    0
Tx pkt:                      88
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:                    2 sec(s)
Err Resets:                   0

The logs show the usual mix of occasional can2 0x23401c01 & 0x22401c02 
errors, indicating a busy state but not excessively so. I also saw 
0x22001002 while driving this morning, in the middle of those others and 
a few minutes later when coming in range of home wifi.

The few log messages for can1 are of a different nature. 0x8048d9 was 
logged twice last night while parked and locked, with nothing going on. 
And this morning, 5.5 seconds after CAR IS OFF, it reports:

esp32can: can1 stuck bus-off error state (errflags=0x00040c00) detected 
- resetting bus

I'll now set can1 into listen mode to see what difference that makes.

Chris
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