What to use for DataLogging
Originally Posted by MalibuJack
Did you get a chance to work with him? I saw him online most of the afternoon (probably late at night for him) and he was AFK so I didn't bother him, I wanted to let him know that I started disassembling the rom for my car, I got pretty far along but need to clean up the data and code segments and label them if someone had entry point data for some of the calls.
Nothing in my indbox yet though. I am going to make a more concentrated effort to be online this evening to help out.
Originally Posted by PDXEvo
I still prefer straight C over most any other language, but thats mostly because I spend a lot of time writing hardware / ASIC drivers. And I cant stand VB. Its programming for stupid people that dont know what the hell they are doing.
Last edited by chmodlf; Jun 11, 2006 at 05:59 AM.
Originally Posted by chmodlf
Thanks for your wonderfull insight. 

What we really need is a way to see what load column the car is using. It would also be nice to see it real time and have it leave a ghost track of cells behind that it passes through. I wrote software to do this for the UTEC and it made my tuning job a heck of a lot easier.
I spend a lot of time messing with Corvettes and, at the end of the day, it would be really awesome if we could get a package that is as complete as, say, HP Tuners. This way you could log and see those logs over your maps and other tracked variables. I know that LM/LC-1 support is getting added into the software, and I am certain its only a matter of time before we end up with really great logging support built into the software. It seems that we will need to, at bare minimum, get the data directly from the sensors though, instead of OBD-II, since the OBD-II port is operating so slow.
Originally Posted by PDXEvo
Glad to see you had even a small amount of intelligence to add.
I just think it is better to keep on topic and air your gripes about languages in some other thread.
BTW I'm sure you are way more intelligent than I am...
Last edited by chmodlf; Jun 11, 2006 at 12:50 PM.
ok back on topic lol, hoping this week the scan datalogger software will be out and we all can start using it since last week was said it was a few days from done, im so exsided for this. and also this will help al a huge amount with all the e flashes he is geting order i think will make his work load down and also he can get them out faster to us who are inpasiont woot woot.
I need to apologize for my previous statement. It wasnt meant to be read as "You are stupid for using VB.", understanding of course, that its easy to read it that way. What was meant by stating VB is for stupid people, is that its a very simple language and requires little, to no, training to use. After spending the last 13 years of my life coding you come to learn all about the negatives of using a high level language, especially once the compilers start to mash things up.
Back on topic... Like I said earlier in this thread, this is one of the better, most useful, threads I have seen in quite sometime. There is a lot of good information here. I hope that we will have a solution that can work straight from the OBD-II port, but given what we know about the sampling rate, Im not all that optimistic. Not that I cant think of a few ways to possibly speed it up, but I havent played in this area all that much, so I dont really have the knowledge needed to risk damaging some internal components.
I ordered the LM-1 + aux box, so I will be sharing how that goes with logging and the built in accelerometer. Obviously its not really worth $600 to most everyone, potentially even myself, but you only live once so spend that money now before its too late
To MJ and whomever else was offended by my VB statement; sorry guys / gals.
Back on topic... Like I said earlier in this thread, this is one of the better, most useful, threads I have seen in quite sometime. There is a lot of good information here. I hope that we will have a solution that can work straight from the OBD-II port, but given what we know about the sampling rate, Im not all that optimistic. Not that I cant think of a few ways to possibly speed it up, but I havent played in this area all that much, so I dont really have the knowledge needed to risk damaging some internal components.
I ordered the LM-1 + aux box, so I will be sharing how that goes with logging and the built in accelerometer. Obviously its not really worth $600 to most everyone, potentially even myself, but you only live once so spend that money now before its too late
To MJ and whomever else was offended by my VB statement; sorry guys / gals.
Originally Posted by PDXEvo
Back on topic... Like I said earlier in this thread, this is one of the better, most useful, threads I have seen in quite sometime. There is a lot of good information here. I hope that we will have a solution that can work straight from the OBD-II port, but given what we know about the sampling rate, Im not all that optimistic. Not that I cant think of a few ways to possibly speed it up, but I havent played in this area all that much, so I dont really have the knowledge needed to risk damaging some internal components.
I ordered the LM-1 + aux box, so I will be sharing how that goes with logging and the built in accelerometer. Obviously its not really worth $600 to most everyone, potentially even myself, but you only live once so spend that money now before its too late
To MJ and whomever else was offended by my VB statement; sorry guys / gals.
I ordered the LM-1 + aux box, so I will be sharing how that goes with logging and the built in accelerometer. Obviously its not really worth $600 to most everyone, potentially even myself, but you only live once so spend that money now before its too late
To MJ and whomever else was offended by my VB statement; sorry guys / gals.
The Default OBDII protocol is definitely SLOW, but after talking to Evo4Mad he mentioned he was able to get a much higher speed and that the ECU itself is capable of running a faster speed, only the OBD-II protocol (for the US market) is standardized at a particular speed. He determined most of this by analyzing the functions of the MUT tool with an oscilliscope to see how fast the data exchange is in monitoring mode, and also how each function is communicated and responded to, though I think he said he needs some more time with the tool to get the rest of the data he needs.
Keep in mind he told me he did this data gathering on 2-3 seperate occasions of about 1 hour of analysis with his computer and oscilliscope.. Thats pretty damn impressive..
I'm pretty sure VB.net was chosen as the host language because it is the easiest to use and get a User interface that people won't ***** about.
Keep in mind he told me he did this data gathering on 2-3 seperate occasions of about 1 hour of analysis with his computer and oscilliscope.. Thats pretty damn impressive..
I'm pretty sure VB.net was chosen as the host language because it is the easiest to use and get a User interface that people won't ***** about.
From my experience, I have never seen an OBD-II port go as slow as the one on the EVO. With the 2000 Vette, we can get 3 data items at 72 s/ps. The Subarus also provide a much much faster OBD-II connection. The ECU may be intentionally limited so that its not used for "Tuning" purposes, but Im not sure how likely that really is. It would definitely be a great thing if he can figure out how to get the ECU to update over the OBD-II port quicker. If I had the *****, I would pull the ECU apart and find the component thats limiting it. Anyone got a wrecked ECU?
I logged a Subaru this weekend using ecuexplorer and my 1.3m cable. 3rd gear pull 3k to redline logging 8 data items resulted in samples every 50 rpm's. Very impressive. If the Evo is anywhere close to this I will be blown away.
Girlie
Girlie
Originally Posted by PDXEvo
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I ordered the LM-1 + aux box, so I will be sharing how that goes with logging and the built in accelerometer. Obviously its not really worth $600 to most everyone, potentially even myself, but you only live once so spend that money now before its too late
To MJ and whomever else was offended by my VB statement; sorry guys / gals.
I ordered the LM-1 + aux box, so I will be sharing how that goes with logging and the built in accelerometer. Obviously its not really worth $600 to most everyone, potentially even myself, but you only live once so spend that money now before its too late
To MJ and whomever else was offended by my VB statement; sorry guys / gals.
You arent able to log timing with the Aux box nj1266? According to the innovate web site (http://www.innovatemotorsports.com/p...s/MTS_grid.php) the aux box supports Ign timing sensing. Were you not able to do this?
Originally Posted by PDXEvo
You arent able to log timing with the Aux box nj1266? According to the innovate web site (http://www.innovatemotorsports.com/p...s/MTS_grid.php) the aux box supports Ign timing sensing. Were you not able to do this?
T be safe, give them a call and make sure that the Aux Box has the INTERNAL ability to log timing.
Read here (http://www.innovatemotorsports.com/s...MA3_Manual.pdf) on page 18. Actually gives you a nice lesson on how to determine timing.



