C125 Dash timing problem

[Jeremy]

Can someone have a look at my c125 dash file, I can't get the live timing to work?

[Sean]

Have you got a log file from the dash you can share? It would help with the diagnosing, to see at least if the GPS data is coming in from the M1 correctly.

[Stephen Dean]

Hi,

When you receive the GPS data over CAN a special offset is needed, I have edited the attached config with the changes.

[Jeremy]

Thanks for the reply Sean.

I have attached the last log out dash using the config you edited.

The GPS data is coming in the wrong resolution, for example -3.3683595 where is should be -33.683595.
I attempted to change the resolution in your config file you uploaded, however it keeps going back to 7 decimal points.

[Stephen Dean]

Hi,

Try this version, I missed that the divisor had been set to 10 instead of 1 in the original configuration.

[Jeremy]

Absolute gold Sean, the last config file worked. Lap timing is now functioning.

While I have you, are you able to cast your eyes over my M1 file, it has been setup for GPS ground speed traction control. I personally don't think it setup correctly.

GPS estimate, which I only recently learnt is only used when there is a fault with wheel speed.

Ideally (could be wrong) GPS Speed Translation should be used for ground speed with a condition of more than 6 or 7 satellites in use.

What do you think?

[Stephen Dean]

Having done a fair bit of testing using GPS for the only Vehicle speed input, I would not use it for Traction or Launch Control operation. The update rate in transient conditions is just too slow for meaningful control.