Impreza Digital Dash Display Project
23 October 2001, 12:45 AM
#31
Scooby Regular
Thread Starter
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
I've just finished my ECU interface and have sent and received some data successfully.
The baud rate _is_ 4800 baud.
Steve
[Edited by StephenDone - 10/26/2001 11:14:39 PM]
The baud rate _is_ 4800 baud.
Steve
[Edited by StephenDone - 10/26/2001 11:14:39 PM]
23 October 2001, 02:04 PM
#32
Scooby Regular
Thread Starter
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Hmmm,
Bit of lateral thinking was required, or perhaps just sleeping on it... The request does have start & stop bits, it's just that there are gaps between the packets sent by the select monitor. Probably because it is refreshing it little LCD display all the time.
Steve
[Edited by StephenDone - 10/26/2001 11:13:15 PM]
Bit of lateral thinking was required, or perhaps just sleeping on it... The request does have start & stop bits, it's just that there are gaps between the packets sent by the select monitor. Probably because it is refreshing it little LCD display all the time.
Steve
[Edited by StephenDone - 10/26/2001 11:13:15 PM]
23 October 2001, 03:06 PM
#33
Scooby Regular
Thread Starter
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
If you are interested in contributing to this project, please mail me now, since it's going to be impractical to distribute graphs, logs and other data via the bbs. I.e. this thread may go a little quiet.
Cheers
Steve
Cheers
Steve
23 October 2001, 11:11 PM
#34
Scooby Regular
Join Date: Nov 1998
Location: Derby, land of road legal race cars.
Posts: 1,445
Likes: 0
Received 0 Likes
on
0 Posts
well done steve,
Its interesting that you find you can only communicate at 4,800bps.
I am pretty sure the select monitor connects at 9,600bps....or 14,400bps if its a new model (based upon the testing I did).
Did those codes help you out ?
regards
Ian.
Its interesting that you find you can only communicate at 4,800bps.
I am pretty sure the select monitor connects at 9,600bps....or 14,400bps if its a new model (based upon the testing I did).
Did those codes help you out ?
regards
Ian.
24 October 2001, 12:34 AM
#35
Scooby Regular
Thread Starter
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Hi Ian,
The baud rate may depend on the ECU version. Mine is undoubtedly 4800 baud - I have a digital storage oscilloscope to watch it on ! The codes you supplied are for the OBD-II standard. Unfortunately the 99/00MY ECU is not OBD-II compliant, so the codes don't tie up.
What car model and year did you expieriment with ?
Cheers
Steve
The baud rate may depend on the ECU version. Mine is undoubtedly 4800 baud - I have a digital storage oscilloscope to watch it on ! The codes you supplied are for the OBD-II standard. Unfortunately the 99/00MY ECU is not OBD-II compliant, so the codes don't tie up.
What car model and year did you expieriment with ?
Cheers
Steve
26 October 2001, 05:18 PM
#36
Scooby Regular
Join Date: Aug 1999
Posts: 7,957
Likes: 0
Received 0 Likes
on
0 Posts
Just out of interest, i thought you migth like to know taht what you are talking abotu has already been done by a member of this bbs.
he is finalising things after a 2 year project.
he is finalising things after a 2 year project.
26 October 2001, 11:09 PM
#37
Scooby Regular
Thread Starter
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Hi Adam,
Wow, it must be a pretty impressive project after two years of development.
Don't keep us in suspense - tell us who it is and what it does !
Which model years of car does it work on ?
Steve
P.S. He has stayed very quiet. Is he working on a commercial project or something ?
[Edited by StephenDone - 10/26/2001 11:20:27 PM]
Wow, it must be a pretty impressive project after two years of development.
Don't keep us in suspense - tell us who it is and what it does !
Which model years of car does it work on ?
Steve
P.S. He has stayed very quiet. Is he working on a commercial project or something ?
[Edited by StephenDone - 10/26/2001 11:20:27 PM]
07 November 2001, 01:28 AM
#38
Scooby Regular
Thread Starter
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Well, I can now log anything that the select monitor can, using my laptop.
Anyone know what the 'Primary Control' parameter represents when retrieved via the select monitor ?
Cheers
Steve
Anyone know what the 'Primary Control' parameter represents when retrieved via the select monitor ?
Cheers
Steve
09 November 2001, 11:44 PM
#39
Scooby Regular
Join Date: Nov 1998
Location: Derby, land of road legal race cars.
Posts: 1,445
Likes: 0
Received 0 Likes
on
0 Posts
Steve,
sounds like you are making some good progress...
if you need any help building the Laptop/GUI side of things let me know m8.
regards
Ian
sounds like you are making some good progress...
if you need any help building the Laptop/GUI side of things let me know m8.
regards
Ian
03 January 2002, 07:54 PM
#40
Scooby Regular
Join Date: Nov 2000
Location: 32 cylinders and many cats
Posts: 18,658
Likes: 0
Received 1 Like
on
1 Post
Where are you at with this now Steve? Can you bump me a load of emails if you have been sending them to folk? The more the merrier I want to get my teeth into this and am learning PICs at the moment and a lot from a bit of driveway tuning 
06 January 2002, 07:48 PM
#41
Scooby Regular
Thread Starter
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Hi Guys,
Sorry for the sparse updates on this thread - I've been a bit busy lately. Anyway a few updates in one...
The project that Adam M mentioned wasn't a dash display for the standard ECU, but a display built up to go with an aftermarket ECU as a one off by one of the well known guys on this bbs - Pectel I think it was. So AFAIK, the only commercial display for std ECUs is still the Techtom. Anyone seen any others appear recently ?
I posted seperately on the drivetrain section to ask what the hell primary control is. I think it was Pete Croney who replied. It is the 'wastegate actuator duty cycle' to the rest of us.
The MY01/02 is an interesting one. Whilst it supports OBD-II, it also supports some Subaru specific protocol. If you plug on a select monitor, you can choose between OBD-II and standard scooby diags. If you compare them, you see just how poor OBD-II is - the update rate of OBD-II is so slow in comparison. Be glad Subaru did their own thing too. I have not yet had time to look at this MY, so there's a project for someone that way inclined !
I am working on both laptop and dashboard versions of display. The laptop version's working pretty well, as the guys from the recent PE Scooby Dyno day will confirm. The only thing I haven't done is document all the Diagnostic Trouble Codes, but there's no technical hurdles left - just my own time constraints now. The dashboard version is in the early stages, since it's easier to prototype features on the laptop version in a high level language, rather than in assembler.
Anyway, to cut a long story short, both products will be available commercially some time this year, if I pull my finger out. If any of you guys are working on projects, please continue to use this thread to post info or queries - I'm happy to help if I can.
Cheers
Steve
Sorry for the sparse updates on this thread - I've been a bit busy lately. Anyway a few updates in one...
The project that Adam M mentioned wasn't a dash display for the standard ECU, but a display built up to go with an aftermarket ECU as a one off by one of the well known guys on this bbs - Pectel I think it was. So AFAIK, the only commercial display for std ECUs is still the Techtom. Anyone seen any others appear recently ?
I posted seperately on the drivetrain section to ask what the hell primary control is. I think it was Pete Croney who replied. It is the 'wastegate actuator duty cycle' to the rest of us.
The MY01/02 is an interesting one. Whilst it supports OBD-II, it also supports some Subaru specific protocol. If you plug on a select monitor, you can choose between OBD-II and standard scooby diags. If you compare them, you see just how poor OBD-II is - the update rate of OBD-II is so slow in comparison. Be glad Subaru did their own thing too. I have not yet had time to look at this MY, so there's a project for someone that way inclined !
I am working on both laptop and dashboard versions of display. The laptop version's working pretty well, as the guys from the recent PE Scooby Dyno day will confirm. The only thing I haven't done is document all the Diagnostic Trouble Codes, but there's no technical hurdles left - just my own time constraints now. The dashboard version is in the early stages, since it's easier to prototype features on the laptop version in a high level language, rather than in assembler.
Anyway, to cut a long story short, both products will be available commercially some time this year, if I pull my finger out. If any of you guys are working on projects, please continue to use this thread to post info or queries - I'm happy to help if I can.
Cheers
Steve
07 January 2002, 01:23 PM
#42
Scooby Regular
Join Date: Nov 1998
Location: Derby, land of road legal race cars.
Posts: 1,445
Likes: 0
Received 0 Likes
on
0 Posts
Hi steve, glad you are still at it.
I need to talk to you at some point about a supplier of ready made ODB->serial connector cables. I think I have a place that can make them pretty cheap.
Ian.
I need to talk to you at some point about a supplier of ready made ODB->serial connector cables. I think I have a place that can make them pretty cheap.
Ian.
Thread
Thread Starter
Forum
Replies
Last Post
shorty87
Full Cars Breaking For Spares
19
22 December 2015 11:59 AM
JackClark
Computer & Technology Related
1
25 September 2015 06:50 PM
