alan
I get a couple of funny messages
one is bad echo f4 56 01 b5
the other is no reply on start up.....
everything seems fine got the thing registering some parts on the right hand column but wouldnt do anything in the graphs and didnt get reading for half the stuff on the right....rev etc ok but not the rest...
went to clog meet on sunday and mark brought his laptop and serial cable and all was ok....just not sure about the usb version...didnt work on his laptop either......
it kept alternating between the 3 phases
any ideas???
cheers
g
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usb problems
Moderators: theelanman, dapinky, Specky, clemo, Nige, Sy V, Dave Eds, DaveT, Elanlover, muley, Enright, algirdas, nitroman, GeoffSmith
14 posts
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usb problems
by theelanman » Wed 09.11.2005, 22:05
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theelanman - Moderator
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by ESM » Thu 10.11.2005, 20:43
The latency is definitely set to 1ms?
Could you send me a couple of screen captures to show me what its doing?
Could you send me a couple of screen captures to show me what its doing?
It takes 43 muscles to frown and 17 to smile, but it doesn't take any to sit on your arse with a blank look on your face.
Click on my WWW link for information on chips and ElanScan.
Click on my WWW link for information on chips and ElanScan.
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ESM - God
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by theelanman » Fri 11.11.2005, 02:53
alan..
latency is set to 1ms...tried all the others too just incase...willl do some screen captures for you......will try either sat or sun....
taking the laptop and the chip to stoneliegh for a bit of help I hope!!
cheers
g
latency is set to 1ms...tried all the others too just incase...willl do some screen captures for you......will try either sat or sun....
taking the laptop and the chip to stoneliegh for a bit of help I hope!!
cheers
g
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theelanman - Moderator
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by ESM » Fri 11.11.2005, 08:51
If it can take logs send those along too.
It takes 43 muscles to frown and 17 to smile, but it doesn't take any to sit on your arse with a blank look on your face.
Click on my WWW link for information on chips and ElanScan.
Click on my WWW link for information on chips and ElanScan.
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ESM - God
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by Sy V » Thu 24.11.2005, 09:10
Jordi
Click on the 'www' button under ESM's signature.
Click on the 'www' button under ESM's signature.
Talk and song from tongues of lilting grace, sounds caress my ears but not a word I heard could I relay, the story was quite clear - Robert Plant
In Respectful Memory - 21st March 1959 - 14th February 2016
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Sy V - LEC Godfather
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by John_W » Thu 24.11.2005, 09:43
jordizr1 wrote:I know, but this button is not working for me, the link shows a "page not found" mesage.
Jordi,
it works OK for me:
http://www.astb91.dsl.pipex.com/MountainChipMenu.html
John
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John_W - Heid-bummer
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by theelanman » Thu 24.11.2005, 11:47
I tried it (the link) just for the sake of it and I get the
Page not found
The page you are trying to get to was not found at this address.
message
cheers
G
ps also get the same from alans www botton too
Page not found
The page you are trying to get to was not found at this address.
message
cheers
G
ps also get the same from alans www botton too
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theelanman - Moderator
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by ESM » Wed 30.11.2005, 19:58
It does seem to be a bit unreliable at the moment - I'll keep an eye on it and maybe move to another host if the problems persist.
It takes 43 muscles to frown and 17 to smile, but it doesn't take any to sit on your arse with a blank look on your face.
Click on my WWW link for information on chips and ElanScan.
Click on my WWW link for information on chips and ElanScan.
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ESM - God
- Posts: 2441
- Joined: Thu 17.04.2003, 10:08
New arrival
by Ex Fastcat » Wed 01.03.2006, 08:05
It would appear that my interface unit has arrived in Adelaide.
The wife says there is a package waiting for me and I can't remember offending anybody into explosive so it is probably not a parcel bomb.
Will let you know how I get on with it over the weekend as I already have a local owner out here with a misfire and he is looking for help.
Anyway, ElanScanMan, thanks for sending it over so quickly.
All the best,
Dave
The wife says there is a package waiting for me and I can't remember offending anybody into explosive so it is probably not a parcel bomb.
Will let you know how I get on with it over the weekend as I already have a local owner out here with a misfire and he is looking for help.
Anyway, ElanScanMan, thanks for sending it over so quickly.
All the best,
Dave
- Ex Fastcat
- Newbie
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- Location: Adelaide, Australia
Well it did arrive.
by Ex Fastcat » Tue 28.03.2006, 21:22
ESM,
Been a while, I am a world class lazy arse..
However, loaded the sofware, plugged it in and with a bit of computer "What does this button do?" pressing got it to work.
Saw what the car was doing but at the same time got ome error messages of similar type to previous users.
Still, I do get data out so when I am more au fait with it I will ask what they mean.
I believe you mentioned "Latency" settings to one of the people with the same error message as me.
What are they and how do you change them?
Thanks again
Been a while, I am a world class lazy arse..
However, loaded the sofware, plugged it in and with a bit of computer "What does this button do?" pressing got it to work.
Saw what the car was doing but at the same time got ome error messages of similar type to previous users.
Still, I do get data out so when I am more au fait with it I will ask what they mean.
I believe you mentioned "Latency" settings to one of the people with the same error message as me.
What are they and how do you change them?
Thanks again
- Ex Fastcat
- Newbie
- Posts: 41
- Joined: Wed 26.10.2005, 02:30
- Location: Adelaide, Australia
by ESM » Wed 12.04.2006, 16:01
First thing to say is the odd error isn't unusual and isn't a problem. The ECU is being queried several times a second (10 times/per sec is the maximum) and so a couple of errors a minute represents 2 errors in every 600 requests, a success rate of 99.7%. If you get errors every other call that's obviously an issue.
The latency thing is a work around provided by FTDI to get old slow serial hardware to work with the much faster USB system. By design the USB system waits until it has a load of data and then blasts it out all at once Since the ECU only sends 63 bytes of data after each request and this doesn't come close to filling the USB buffer, the data will sit in the USB buffer and not get through to the serial port in real time. So you get an error message from ElanScan because it didn't receive any reply. The FTDI driver gets around this by sending the data in the buffer, even its only a few bytes, after a defined period of inactivity (the latency). So if the latency is set to 1ms the ALDL will be sent 1ms after the car has finished sending - which is comfortably fast enough for this application. If its set to, say, 200ms it just won't work as the next request will be due before a reply is received for the previous request.
Other USB- serial converters lack the latency setting and so they work very badly in this application.
The latency thing is a work around provided by FTDI to get old slow serial hardware to work with the much faster USB system. By design the USB system waits until it has a load of data and then blasts it out all at once Since the ECU only sends 63 bytes of data after each request and this doesn't come close to filling the USB buffer, the data will sit in the USB buffer and not get through to the serial port in real time. So you get an error message from ElanScan because it didn't receive any reply. The FTDI driver gets around this by sending the data in the buffer, even its only a few bytes, after a defined period of inactivity (the latency). So if the latency is set to 1ms the ALDL will be sent 1ms after the car has finished sending - which is comfortably fast enough for this application. If its set to, say, 200ms it just won't work as the next request will be due before a reply is received for the previous request.
Other USB- serial converters lack the latency setting and so they work very badly in this application.
It takes 43 muscles to frown and 17 to smile, but it doesn't take any to sit on your arse with a blank look on your face.
Click on my WWW link for information on chips and ElanScan.
Click on my WWW link for information on chips and ElanScan.
-
ESM - God
- Posts: 2441
- Joined: Thu 17.04.2003, 10:08
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