VemsTune and 1.1.6x release

[Jamo]

Just installed it and the help files are 100% better, top job there

[gunni]

I tried this version and my serial problems are still that exact same.

[emil@vems.se]

I tried this version and my serial problems are still that exact same.

It would be nice if you could describe your problems,
I have seen two types of problem

• Cannot connect at all
• Work with engine off, computer hangs with engine running

The connection problem has been fixed with latest prolific driver and possibly by turning off "AIM enable" in Display settings
I haven't been able to reproduce the hanging computer with my own, but with another guys laptop and usb-serial converter placed very close to the ECU

[gunni]

The exact problem is

The ecu will become disconnected anywhere between 20second up til 5minutes from connecting, inbetween that time everything is fine.
There is no pattern to when it disconnects.


Second problem is corruption of the data coming from the ecu, sensor values and readings are totally crazy and random, tables will look corrupted and out of context, while a LCD will show the values reported to the LCD to be just as expected.
This can happen anywhere between 20seconds up until re detecting the ecu. If I re detec the ecu everything is back to normal for a little while until it starts again.

I have zero problems with firmware updating so it seems to be related to information coming from the ecu data stream

[emil@vems.se]

What version of your prolific driver do you have?
I have left my computer (core2duo lenovo laptop) on for 24 hours connected to ecu without problems, both with real rs232 and usb.. This didnt work on older drivers

I was even able to reproduce this corrupted data problem using terminal program with old prolific drivers

[gunni]

Thing is as well .
That I tried the same ecu and usb adapter on another laptop,
There where no problems on that.

My driver version is 3.2.0.0

Just updated the driver, will report back. version is now 3.3.5.122

[dnb]

Just tried with my Prolific USB device, and it still doesn't work at all - what version of drivers did you test with Emil?  I'll try those.

It still mostly works with my FTDI usb device, but it will get itself into a cycle where it connects and instantly drops sometimes.  There seems to be no reason why - engine running or not makes no difference.

[emil@vems.se]

dnb, do you have AIM protocol enabled?

it seems driver or vemstune gets a bit dizzy about this stream of data coming before the port is opened the first time
If you have AIM enabled, try to connect with any terminal program and send "A", then, without restarting ecu try to connect with vemstune again

Once connected, try disable AIM and try to connect to a restarted ecu again

I can reproduce this behaviour here with prolific cable and fw 1.1.63 with AIM enabled
works every time with AIM disabled

//Emil

[gunni]

Thing is as well .
That I tried the same ecu and usb adapter on another laptop,
There where no problems on that.

My driver version is 3.2.0.0

Just updated the driver, will report back. version is now 3.3.5.122

the 3.3.5.122 just crashes my laptop and does not at all find a ecu .
So back to the 3.2.0.0 and it connects , but AIM is disabled on this ecu

[emil@vems.se]

sorry, forgot, im running XP with driver 2.0.13.130
new driver package was released 2009-12-02

[gunni]

Can you post that up for download so I can test that?

Thanks.

[emil@vems.se]

http://www.prolific.com.tw/support/files//IO%20Cable/PL-2303/Drivers%20-%20Generic/Windows/allinone/PL2303_Prolific_DriverInstaller_v110.zip

I tried to find a changelog for the drivers, but failed..

[gunni]

Same problem.
No changes with the prolific drivers you posted.
And it crashes VT.

The package you linked to is driver 3.3.10.140 for Win7.
So maybe it´s my windows that´s at fault here.

[emil@vems.se]

Here it only hangs if i leave AIM protocol enabled and using USB adapter
Workaround for this is to start vemstune with correct port configure (com3 in my case), but with serial cable unplugged
Then, after vemstune said "ECU has not been detected on port: COM3", plug the serial cable into my usb adapter


for windows 7, prolific say that windows version 7100 or newer has to be used

tried to run vemstune in administrator mode?

[gunni]

I can´t do anything if it doesn´t run in administrator mode.

I´ve just installed VT on my just up and running XP desktop and will see how long that lives, that has serial port as standard even though it´s a brand new type motherboard(can you belive it ) . I don´t think it´s going to be a problem on XP.

I´m going to be swithing over to a XP laptop real soon and this will not really be a problem for me after that. As VT worked on that one.
But it will require sorting as Win7 is fast replacing XP and Vista for people