cem volvo

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

Post by gljuk » Sun Oct 01, 2017 12:00 am

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
Posts: 1
Joined: Mon Jan 15, 2018 7:58 am

Post by Holtek » Mon Jan 22, 2018 10:06 pm

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
Posts: 4
Joined: Sat Sep 30, 2017 7:17 am

Post by gljuk » Thu Mar 08, 2018 3:44 am

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
Posts: 15
Joined: Fri Oct 07, 2016 1:11 am

Post by ZRimaZ » Thu Mar 08, 2018 4:43 am

They are just 16byte-swapped!

gljuk
Posts: 4
Joined: Sat Sep 30, 2017 7:17 am

Post by gljuk » Thu Mar 08, 2018 5:20 am

I would like to know if there is a compability fix, so that dumps would be equal.

ZRimaZ
Posts: 15
Joined: Fri Oct 07, 2016 1:11 am

Post by ZRimaZ » Thu Mar 08, 2018 7:36 am

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
Posts: 8627
Joined: Mon Jul 18, 2005 9:33 pm

Post by usbbdm » Thu Mar 08, 2018 11:24 am

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
Posts: 4
Joined: Sat Sep 30, 2017 7:17 am

Post by gljuk » Thu Mar 08, 2018 11:19 pm

Thank you!

hera1977
Posts: 1
Joined: Tue Jan 07, 2020 12:12 am

Re: cem volvo

Post by hera1977 » Wed Jan 08, 2020 4:45 am

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
Posts: 8627
Joined: Mon Jul 18, 2005 9:33 pm

Re: cem volvo

Post by usbbdm » Wed Jan 08, 2020 8:58 am

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
Posts: 8627
Joined: Mon Jul 18, 2005 9:33 pm

Re: cem volvo

Post by usbbdm » Thu Jan 09, 2020 6:18 pm

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
Posts: 9
Joined: Tue Jan 14, 2020 2:45 am

Re: cem volvo

Post by forumoto » Wed Jan 15, 2020 1:16 pm

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
Posts: 8627
Joined: Mon Jul 18, 2005 9:33 pm

Re: cem volvo

Post by usbbdm » Wed Jan 15, 2020 1:33 pm

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
Posts: 9
Joined: Tue Jan 14, 2020 2:45 am

Re: cem volvo

Post by forumoto » Wed Jan 15, 2020 1:51 pm

thanks, am coming online

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