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Vida CEM swapping

A mid-size luxury crossover SUV, the Volvo XC90 made its debut in 2002 at the Detroit Motor Show. Recognized for its safety, practicality, and comfort, the XC90 is a popular vehicle around the world. The XC90 proved to be very popular, and very good for Volvo's sales numbers, since its introduction in model year 2003 (North America). P2 platform.
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matija0610
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Re: Vida CEM swapping

Post by matija0610 »

Screenshot_2.png
Screenshot_2.png (65.89 KiB) Viewed 596 times
8-bit SUM whole CONF block
I think everything is clear in the picture ;)
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ele288
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Year and Model: s60 2.4
Location: portsmouth

Post by ele288 »

Thank you, looks simple. What editor are you using?
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matija0610
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Post by matija0610 »

ele288 wrote: ↑08 Oct 2022, 02:44 Thank you, looks simple. What editor are you using?
HEX Workshop
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ele288
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Post by ele288 »

Thank you. I'll try and report the results
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oscilloscope
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Post by oscilloscope »

ele288 wrote: ↑07 Oct 2022, 16:09 You can use cem cracker or read directly from cpu and find the pin. If you look at page 9 there is details where the config is, but if you change any byte you have to recalculate checksum but can't figure this out yet

Page 9 From what the microcontroller datasheet or something else ?
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ele288
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Post by ele288 »

Page 9 of this thread
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5ft24
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Post by 5ft24 »

vtl wrote: ↑27 Sep 2022, 16:35
konielian wrote: ↑27 Sep 2022, 13:32 I am also interested on making an app which can write back by DiCE the modified flash into the car, thanks to T5Luke, on 28f400 cem that is possible but in the M32C CEM is still not solved.
Solve it! ;) Register at Renesas web site, download M32C datasheet and development environment. Renesas E8/E8a is slightly over $100 on Ebay. You will need a donor CEM, too. Once you have a flash-writing SBL ready, you are basically done. The CAN proto is very simple and wouldn't take long to implement.
Registered on their site. No datasheet for the M32C, and can't find a dev environment to dl there either
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5ft24
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Post by 5ft24 »

Finally found the HEW/compiler/debugger etc, but still no data sheet for the M32C
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oscilloscope
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Post by oscilloscope »

5ft24 wrote: ↑08 Oct 2022, 16:18 Finally found the HEW/compiler/debugger etc, but still no data sheet for the M32C
Are you refering to the older brick style cem with the MC68376 ? Or is there another one which uses the 400 flash memory externally?
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oscilloscope
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Post by oscilloscope »

Is this what you're after?
Attachments
REN_rej03b0047_32c84ds_DST_20050708.pdf
(903.63 KiB) Downloaded 168 times
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