NefMoto > Technical > Reverse Engineering > Getting started with IDA and MED9.1
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Author Topic: Getting started with IDA and MED9.1  (Read 58367 times)
Praga
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« Reply #45 on: February 19, 2018, 05:17:47 AM »
Quote from: gt-innovation on February 19, 2018, 03:01:15 AM
Totally wrong way to grab that data and post it...

Use a screen grab while you are on the actual code. If you don`t understand check what everyone has done in the previous post.
What you got is just hex strings displayed as .long

I would suggest to practice your ida skills a little bit more and check the forum on previous posts on what has been done.

Posting your original file and describing what you are searching for is also a good thing.


Sorry. Is this better ?
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gt-innovation
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« Reply #46 on: February 19, 2018, 06:24:57 AM »
No.

Read first page of posts and you will understand.
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Pr3muToS
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« Reply #47 on: February 22, 2018, 08:30:10 AM »
Quote from: ericpaulyoung on February 25, 2015, 03:11:56 PM
Has anybody made progress here? I am starting back into IDA on ME9 with the goal of getting a 5120 hack onto ME9.

thats a nice question, anybody worked here?
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nubcake
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« Reply #48 on: February 23, 2018, 12:18:12 PM »
Quote from: Pr3muToS on February 22, 2018, 08:30:10 AM
thats a nice question, anybody worked here?

I have done 5120 MED9.1, but in a "brute" way, just rescaling everything, apart from fueling.
I believe it can be done in a much more elegant way, since there's a bunch of 5120 stuff already in there.

Not enough time to research it right now. Maybe some day. Smiley
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gt-innovation
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« Reply #49 on: February 23, 2018, 02:37:40 PM »
You can easily compare a file from a golf 5 gti (bwa) with a file from an audi s3/cupra
and check what needs to be done ith a little bit more scaling if you are using a bigger map sensor.
By compare i mean disassemble and compare the code.
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Pr3muToS
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« Reply #50 on: February 23, 2018, 03:08:36 PM »
Quote from: gt-innovation on February 23, 2018, 02:37:40 PM
You can easily compare a file from a golf 5 gti (bwa) with a file from an audi s3/cupra
and check what needs to be done ith a little bit more scaling if you are using a bigger map sensor.
By compare i mean disassemble and compare the code.




but that doesnt help me ? both would have max requested boost @ 2550mbar..  255 x 10...
it not like scaling gradient and offset of boostsensor..

as far as is see its not like ME7 on MED9
« Last Edit: February 23, 2018, 03:10:43 PM by Pr3muToS » Logged
prj
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« Reply #51 on: February 23, 2018, 07:41:11 PM »
It's not like ME7, but you can do it brute force like ME7 if you want.
Or if you are more clever, you can do it a little easier.

But I can't help but get the feeling that you are looking to get a free handout.
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Pr3muToS
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« Reply #52 on: February 25, 2018, 01:21:34 PM »
Quote from: prj on February 23, 2018, 07:41:11 PM
It's not like ME7, but you can do it brute force like ME7 if you want.
Or if you are more clever, you can do it a little easier.

But I can't help but get the feeling that you are looking to get a free handout.

iam not looing for a free handout, we are already studying the process, but its not that easy to rewrite the sourcecode if u havent learnd the scripting.
tuning files in ols and programming scource codes in different script languages are 2 pair of shoes.
iam also open for buying help or trading...

BR
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J.Laborde
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« Reply #53 on: August 18, 2018, 07:26:02 PM »
Hello Lads,

I've got the MPCxxx Instruction Set and which should help people with the explanation of the Assembly Language seen in IDA Pro when looking at MED9.1 Binaries.

https://cache.freescale.com/files/product/doc/MPC82XINSET.pdf

How much progress have we made?
 
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I am here to learn and help others learn. Smiley

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nyet
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« Reply #54 on: August 19, 2018, 12:14:33 AM »
Quote from: Pr3muToS on February 25, 2018, 01:21:34 PM
different script languages

No ECU software in history was written in a scripting language, as far as I know.
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Pr3muToS
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« Reply #55 on: October 26, 2018, 02:27:02 AM »
change it to assembley language..
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BWF
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« Reply #56 on: April 18, 2020, 04:27:58 AM »
TOC and SDA addresses are always the same in MED9.1?
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lgtmelo
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« Reply #57 on: April 26, 2024, 12:32:41 PM »
Quote from: Basano on September 18, 2014, 03:40:21 AM
r4 is loaded with the map location, therefore by elimination r3 must be nmot_w – 0x7FD830

sorry to bring this up from the dead, but i have an honest question. did you by any change made a mistake when typing this and switched r4 with r3?
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