haha - I'm excited!

ok so I guess for about a year now I have been working on speed up OBD queries.. No that's not a year straight, but off and on - I would have shot myself if it was a year straight!!!

Anyway's I got sick of it being an ongoing issue so this last week I spent LOTS of hours (easily 100) just working through the whole OBD receive/respond process.

I had written a C# application to test my findings, and from the ECU's point of view there wasn't any reason for it to be running so slow.

Anyway's long-story short - it looked like I solved the problem very early on but because C# is a bit "overweight" I hadn't detected the success until I swapped back to my C++ Mode23 Logger (that I wrote ages ago)

So as it stands now I have sped up OBD queries by about a factor of 3.5, so with the stock ROM I can log about 100 things per second, with my test ROM I can log about 350 things a second.

I also have something else I want to test, so bear with me while I cook up some assembly and then I can make a report on my success or not with that one!

Anyway's this probably doesn't mean much to you guys (yet) but it has been a LONG TIME coming for me... So I am pretty happy!

Yay!

 

100 hours? This week? Mode23 Induced Psychosis must not be far away now...

Rich

 

yeh it's bad

But hopefully it will be worth it...

 

Awesome!

I'd love to log 100 items a second. 350 a second would be amazing. I would know the moment things happened. I could see exactly what was going on with load / boost / fuel.

 

sorry maybe 100 items was bad terminology, 100 samples..

Either way stock is 100 responses/second

3.5x more at any rate

The trick I tried didn't work, I should have realised it wouldn't have worked straight away...

I reckon with request packing (which netted 5x speed improvement) and this we should get 10x faster logging... So 1000 things a second...

Hrmm yummy

 

Keep it up Tephra!

I am always happy to read your threads on new ****, you are da man.

 

Good job David.

 

can someone do me a favour?

In EvoScan if you let it log for a little while it will report the samples/second (top right of the main screen)

I am getting about 60/second - can people just let me know if that's what they are seeing?

 

I seem to recall that I get 100-110 ish.

Low-power "eeepc" netbook. OP2.0.

Rich

 

2.8.0005?

I am running 2.9 beta - and I think Hamish said he reworked the CAN code... Anyways I just dropped him an email with my suspicions..

Anyway's 60/sec -> 240/sec... sweeeeet

 

I thought that reports bytes per second...

 

nah...

 

without giving too much away - my first patch required the use of an ECU Bench and Alternate Flashing mode in EcuFlash...

Which kinda made it in accessible for most peeps - so I have revised it so that you can do it in car..

Seems to be working ok.. Ever so slightly slow logging - but I think well worth it!

 

 

So you have to reflash to be able to read at these speeds or is this just sped up in your code? Care to ellaborate Dave?