Ducati DDA+

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Jello said:
DDA comes with my SL. Once I get my hands on it and have some time to spare I will be attempted to reverse engineer their protocol and figure out what's what. I'll post notes in a new thread and if I'm successful release an open source tool (or provide an online utility).

I figure it will be a good project for rainy weekends.
Click to expand...

and have a lot new friends including me ;)

p.s. Do you think we could add a channel for the lean angle too? :eek:

Thanks
 
jarelj said:
LFX14A2-BS12 is the model for the Panigale, that what I have in mine.
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Thanks Jarel, I see that's different than the LFX18A1-BS12 model that Motowheels sells for the Pani. So this must be the smaller one that weighs less.
 
even using a AIM like product, you can stil have the Duati laptime. the EVO4 carries its own antenna and uses that gps and derived speed data for most of its analyses.. it plugs into the Ducati ECU to retreive most of the other stuff ... the dash or Ecu still works when you leave the Ducati GPS antenna in place.. triggering the start/finish button shows you lap times...

this said , i would really be interested to see the use of dda+ on street use as, frankly , i can't see it...
 
JeffD said:
Thanks Jarel, I see that's different than the LFX18A1-BS12 model that Motowheels sells for the Pani. So this must be the smaller one that weighs less.
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Yes sir, why would you want one that weighs more!?!? :D
 
Last edited:
jarelj said:
Yes sir, why would you want one that weighs more!?!? :D
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Jarel

Do you recommend this kind of battery for an hybrid use, track and road? I heard it can't crank the engine for too long, so in case you need to insist the battery will not stand as long as a regular one.

Thanks
 
Scorpio66 said:
Jarel

Do you recommend this kind of battery for an hybrid use, track and road? I heard it can't crank the engine for too long, so in case you need to insist the battery will not stand as long as a regular one.

Thanks
Click to expand...

I've had them on my last 3 bikes and had no problem, and we've sold lots of them for street bikes, same thing. Just make sure you have the correct battery tender/charger for it, I highly recommend getting the Shorai charger for the Shorai battery.
 
kope999R said:
even using a AIM like product, you can stil have the Duati laptime. the EVO4 carries its own antenna and uses that gps and derived speed data for most of its analyses.. it plugs into the Ducati ECU to retreive most of the other stuff ... the dash or Ecu still works when you leave the Ducati GPS antenna in place.. triggering the start/finish button shows you lap times...

this said , i would really be interested to see the use of dda+ on street use as, frankly , i can't see it...
Click to expand...

I didn't mean I bought it as a street toy. I got it yesterday and was playing around with it just to see what it does/how the software works. I wanted to log *something* vs waiting a couple weeks until the track.

However, a logger serves the exact same purpose on the street that it does on the track. Providing empirical evidence of what you are or aren't doing while you're riding. The pace may not be there but there are still consequences for poor technique. The data give you something to point at and correct and it's a lot easier to analyze what happened when you're sitting in front of your computer compared to sitting on your bike at 70MPH.
 
I use Harry's laptimer. Inexpensive $9.99 iPhone app purchase. If you stabilize the iPhone on your bike, you can download the track and get pretty accurate reads. Uses the GPS and accelerometer of the iPhone. I also read that it has a video appendage you can purchase that overlays telemetrics and videos natively. Have not tried it yet to report.
 
Iphone gps sampling frequency is 1hz, if I recall correctly. This is ok for occasional hobby, but for detailed track analysis you would want 10hz data sampling. You can get bluetooth gps receiver to connect to your iphone for a very cost effective solution.
 
Scorpio66 said:
I asked Dashware if they can overlay the DDA data and sent the file but since then just ... crickets :-(
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Put it as attachment here so I can grab it, perhaps? I'll test it with my dashware.
In theory, if it can be converted to csv it should be doable.
 
Ah, unfortunately DDA file is not simple comma-separated values, but instead it is recorded in tightformat presumably hexadecimal values.
So, to make DDA file workable with video overlay programs, one must first figure out how to parse the file and convert it to usable CSV.

This guy seems to have succeeded, but he hasn't shared his method.
DDA>CSV>TrackVision Test - Ducati.ms - The Ultimate Ducati Forum

Specification on the file's values is here, in case someone here wants to have a play
Ducati Data Analysis - File Format - Want to Import with video - Ducati.ms - The Ultimate Ducati Forum

Unfortunately I am not good enough to be able to crack it.
 
Marmoot said:
Specification on the file's values is here, in case someone here wants to have a play
Ducati Data Analysis - File Format - Want to Import with video - Ducati.ms - The Ultimate Ducati Forum

Unfortunately I am not good enough to be able to crack it.
Click to expand...
This is a great find and great start, and will certainly make my job much easier. I'm now quite confident having seen that data (assuming no radical changes in the last few years).

Now all I need is my bike, some samples, and a rainy unbooked weekend :)
 
There is a great thread on Rennlist (Porsche forum), breaking down the process of mating data over video of different formats. I'll dig it up and post the link shortly. I hope it helps!
 
RingMiester27 said:
There is a great thread on Rennlist (Porsche forum), breaking down the process of mating data over video of different formats. I'll dig it up and post the link shortly. I hope it helps!
Click to expand...

Thanks, though that will surely come much later. My plan is reverse engineer the binary format Ducati uses in their DDA, and then create export formats to put it in the CSV input format (or whatever) that other people on this forum would typically use with commercial software to mate it to video. This way once it's in a "standard" format, anyone should be free to use any tool of their choosing.

I'll probably start a dedicated thread about this, because in order for me to fully understand the framing of the binary file I'm likely going to need to see a variety of them from all of your bikes, along with a screenshot (or human readable export) of what the Ducati software rendered.

The good news is that based on the ducati.org thread above, there is no encryption or obfuscation, so it shouldn't be all that difficult once I have a decent sample size.
 
Jello said:
Thanks, though that will surely come much later. My plan is reverse engineer the binary format Ducati uses in their DDA, and then create export formats to put it in the CSV input format (or whatever) that other people on this forum would typically use with commercial software to mate it to video. This way once it's in a "standard" format, anyone should be free to use any tool of their choosing.

I'll probably start a dedicated thread about this, because in order for me to fully understand the framing of the binary file I'm likely going to need to see a variety of them from all of your bikes, along with a screenshot (or human readable export) of what the Ducati software rendered.

The good news is that based on the ducati.org thread above, there is no encryption or obfuscation, so it shouldn't be all that difficult once I have a decent sample size.
Click to expand...

Let me know when you need them, I have a bunch of DDA file and you can easily read them downloading the SW from the prosa.com website.

Thanks a lot!
 
Scorpio66 said:
Let me know when you need them, I have a bunch of DDA file and you can easily read them downloading the SW from the prosa.com website.

Thanks a lot!
Click to expand...

Oh sweet! I didn't realize there was Mac software to parse DDA files. This is going to make things MUCH easier! (I will never, EVER run Micro$oft anything... and while Linux is my platform of choice, I run a single instance of MacOS out of necessity). I thought I was going to have to rely on emulators or all of you... whew.

I guess I'll know a lot more once I actually get my hands dirty with all of this. Either way, expect a dedicated thread once that happens.
 
DDA to CSV

A very kind someone I contacted online converted my DDA files to CSV. He (TJ Creath, God bless him) told me to send him the files and he returned them to me right away as CSV.
Interesting what he mentioned, the actual speeds in the file are 6-8% lower than what's reported by PROSA's DDA Graphic Analyzer ... sneaky guys
 
I check this thread daily in excitement and it looks like you're really making valuable progress cracking the system. Cool.
 

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