[Ovmsdev] CAN bus logging not working

[Christos Oscar Kambiselis]

Hi,

The first time I tested it I started logging from the Web UI and stopped it
from there too and the next time I tested it I did it from the shell,
running status commands to make sure it had started and stopped.

vfs ls /sd gives,
0 30-Nov-1979 00:00 log 0 30-Nov-1979 00:00 0 30-Nov-1979 00:00 0
30-Nov-1979 00:00 0 30-Nov-1979 00:00 ! 0 30-Nov-1979 00:00 ) 0 30-Nov-1979
00:00 1 0 30-Nov-1979 00:00 9 0 30-Nov-1979 00:00 A 0 30-Nov-1979 00:00 i 0
30-Nov-1979 00:00 Q 0 30-Nov-1979 00:00 y 0 30-Nov-1979 00:00 a 0
30-Nov-1979 00:00 i 0 30-Nov-1979 00:00 ���r 0 30-Nov-1979 00:00 y


which I noticed on the "Editor", and the reason I wanted to format the card
in the OVMS.

can can1 status
CAN: can1 Mode: Active Speed: 500000 DBC: none Interrupts: 214034 Rx pkt:
120472 Rx ovrflw: 0 Tx pkt: 90774 Tx delays: 0 Tx ovrflw: 0 Tx fails: 254
Err flags: 0x008040d9 Rx err: 0 Tx err: 128 Rx invalid: 0 Wdg Resets: 0 Wdg
Timer: 2 sec(s) Err Resets: 0
can can2 status
CAN: can2 Mode: Listen Speed: 500000 DBC: none Interrupts: 0 Rx pkt: 0 Rx
ovrflw: 0 Tx pkt: 0 Tx delays: 0 Tx ovrflw: 0 Tx fails: 0 Err flags:
0x00000000 Rx err: 0 Tx err: 0 Rx invalid: 0 Wdg Resets: 91 Wdg Timer: 3
sec(s) Err Resets: 0
The command to start logging is the all CAN messages command from the guide
*can log start vfs crtd /sd/can.crtd *

and it returns
CAN logging to VFS active: Type:vfs Format:crtd(discard) Vehicle:KN
Path:/sd/can.cr

also
can log status
#2: open Type:vfs Format:crtd(discard) Vehicle:KN Path:/sd/can.crtd
Messages:214 Dropped:0 Filtered:0 Rate:0.0% /sd/can.crtd: running
Messages:214 Discarded:0 Dropped:0 Filtered:0 Rate:0.0%


On Tue, Feb 7, 2023, 02:08 Mark Webb-Johnson <mark at webb-johnson.net> wrote:

> First guess is that you have to ‘can log stop’ to close the logging file
> before you will be able to see the content.
>
> If that is not it, please provide details of the logging commands you are
> typing, and what ‘vfs ls /sd’, ‘can can1 status’, ‘can can2 status’, show.
>
> Regards, Mark.
>
> P.S. If you have a modern OVMS module, I also suggest you double-check the
> sdcard maxfreq.khz setting to optimise performance:
>
>
> https://docs.openvehicles.com/en/latest/userguide/logging.html?highlight=sdcard#performance-impact
>
>
> On 7 Feb 2023, at 4:08 AM, Christos Oscar Kambiselis <
> ckambiselis at gmail.com> wrote:
>
> Hi,
> Has anyone had any problems with CAN bus logging?
>
> I have a 32GB SD card installed and "SD status" gives:
>
> *SD CARD is inserted*
> *Status: available*
> *Name: SD32G*
> *Size:  30419 MB*
> *Free:  29767 MB*
>
> *Card type: SDHC/SDXC*
> *Max speed: 25000 kHz*
> *Capacity: 30436 MB*
> *CSD: ver=1; sector_size=512; capacity=62333952 read_bl_len=9*
> *SCR: sd_spec=2; bus_width=5*
>
> I have setup CAN1 and 2 to "listen" and started the logging like it's
> mentioned in the user guide, checked the status, I stopped it some time
> later, and when I go to open it from the Web UI it is empty, also tried
> from the Editor and it is also empty, removing the card is a bit tricky
> since the hardware is pretty tucked away in the console. I searched the
> manual for a format command but can't find anything.
>
> I do get messages and readings on the OVMS Android app, so at least the
> OBD CAN is fine.
>
> Oscar
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>
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