cem volvo

This talks about BDM used on card Engine computer
gljuk
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Posts: 4
Joined: Sat Sep 30, 2017 7:17 am

Post by gljuk »

Would you please share the pinout for connecting to Volvo CEM 1999-2004. You could send this with PM or make some offer.
Thank you!
Holtek
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Posts: 1
Joined: Mon Jan 15, 2018 7:58 am

Post by Holtek »

Hi :)
To meet the questions about the wiring diagram, I created a movie and instruction of programming VOLVO CEM.
Wiring diagram:
https://mega.nz/#!tIl3ALKR!3mGm6S2TUien ... x6fDL2D5Vg
Movie:
https://www.youtube.com/watch?v=uUIETPyCdJI

Best regards
gljuk
Junior Member
Posts: 4
Joined: Sat Sep 30, 2017 7:17 am

Post by gljuk »

Thanks to Holtek, i had a success reading flash memory content. But when comparing these images with those taken with parallel programmer, lets say TL866, byte order is different. So images are not compatible at all. Tried big and little endian within xml config, but images are still with swapped words.

Can we overcome this somehow?

Best Regards
ZRimaZ
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Joined: Fri Oct 07, 2016 1:11 am

Post by ZRimaZ »

They are just 16byte-swapped!
gljuk
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Joined: Sat Sep 30, 2017 7:17 am

Post by gljuk »

I would like to know if there is a compability fix, so that dumps would be equal.
ZRimaZ
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Posts: 15
Joined: Fri Oct 07, 2016 1:11 am

Post by ZRimaZ »

gljuk wrote:I would like to know if there is a compability fix, so that dumps would be equal.
Is it such a big problem to swap the bytes? :(
usbbdm
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Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm »

The data read from the programmer is byte swapped. USB JTAG NT is reading the byte in CORRECT order.
So it is the programmer's software that needs to provide the function of byte-swap.
gljuk
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Joined: Sat Sep 30, 2017 7:17 am

Post by gljuk »

Thank you!
hera1977
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Joined: Tue Jan 07, 2020 12:12 am

Re: cem volvo

Post by hera1977 »

Hi i get this error on a volvo s60 2.5T 2004 cem 08688513 08696035
here is the file read whit erom reader
Report these values http://www.usbjtag.com/phpbb3 00ff,d200
-getram 0 80000
Time 00:00:02 (.441)
-save 0 80000

Thanx

jonas
usbbdm
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Joined: Mon Jul 18, 2005 9:33 pm

Re: cem volvo

Post by usbbdm »

What it says is you need proper xml for this target.
After BDM is ON, the xml file will help to initialize the target CPU to allow read/write the flash segment to be able to issue command to detect the flash.
Send me the read back of the flash to [email protected] and I will disassemble the firmware and create the xml for you,
usbbdm
Junior Member
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Joined: Mon Jul 18, 2005 9:33 pm

Re: cem volvo

Post by usbbdm »

Check your email.
<Test>
<Name>VOLVE25</Name>
<Cat>Other</Cat>
<Protocol>BDM</Protocol>
<Endian>Big</Endian>
<Speed>1</Speed>
<Programram>0x0</Programram>
<sprogram>1</sprogram>
<Memorys>
<Memory>
<Name>Code</Name>
<Type>1</Type>
<Address>0x0</Address>
<Size>0x80000</Size>
</Memory>
</Memorys>
<Inits>
<Init>
<Address>0xFFFA48</Address>
<Value>0x0006</Value>
<Bytes>2</Bytes>
</Init>
<Init>
<Address>0xFFFA4A</Address>
<Value>0x7870</Value>
<Bytes>2</Bytes>
</Init>
<Init>
<Address>0xFFFA74</Address>
<Value>0x0006</Value>
<Bytes>2</Bytes>
</Init>
<Init>
<Address>0xFFFA76</Address>
<Value>0x7470</Value>
<Bytes>2</Bytes>
</Init>
</Inits>
</Test>
forumoto
Junior Member
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Joined: Tue Jan 14, 2020 2:45 am

Re: cem volvo

Post by forumoto »

I also have this Volvo CEM which because of this, I had to buy this programmer, I have never use it before and this will be my first time, I need serious help as to how to go about it, as I read so much that some datas need swap and others do not, in fact I need help
usbbdm
Junior Member
Posts: 8680
Joined: Mon Jul 18, 2005 9:33 pm

Re: cem volvo

Post by usbbdm »

Come online chat and I can help you out.
If you use BDM NT read and write you do not need to swap.
If you need third party tool to analyze the data you need to swap. Use 1.00 software it allows you swap and save to a file.
forumoto
Junior Member
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Joined: Tue Jan 14, 2020 2:45 am

Re: cem volvo

Post by forumoto »

thanks, am coming online
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