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Post Info TOPIC: 2003-2004 Honda CBR600RR ECU
Don


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2003-2004 Honda CBR600RR ECU


I acquired a free California ECU from a 200-2004 Honda CBR600RR with a part number of 38770-MEE-772. I quickly opened it up and found a Mitsubishi CPU with a part number of M32171F2VFP.

I did a quick search and found a datasheet for that exact part number, so it appears that this CPU is a standard unit and not some custom variation.

The data sheet can be found here http://www.datasheetarchive.com/pdf/2097045.pdf

This ECU is manufactured by Keihin, so it seems that we have another project.

Does anyone know anything about these CPUs and how we may be able to pull the code. There are a bunch of test points near the CPU, but I have to remove some more rubber potting to see where they go.

Let me know if you need any additional information.

-- Edited by Don at 06:36, 2008-01-12

-- Edited by Don at 13:16, 2008-01-12

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Hello.

Did you have some pictures of the ecu and the MCU it has?

I'm also inresested to know...

Best regards


Christian Piasini

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Christian Piasini


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Actually Mitsubishi microcontroller was sucked up by Renesas along with Hitachi.

Go to http://america.renesas.com/ 

and enter m32171 in the part number search window in the upper left corner.

Then select m32171F2VFP pdf to get the goods.

This is the user's manual.  Check section 6.5 for flash info. Having justed glanced at it it looks like it is very similar to the 32 bit Denso with an onboard boot program that reads data from a serial line. It also has a JTAG port which would be your best bet for reading out the code.

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Don


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I have most of the black gook pealed off of the board now. I did find a bunch of test points across the rear of the board that go the the JTAG pins with resistors configured just like the user manual for this chip.

My big question is now what do I do with the JTAG interface?

Way back when, when I used to design with CPLDs, I used a JTAG interface cable that connected to the parallel port on the PC to program them using the Xilinx software. I still have this interface cable, is this the same interface?

What software do I use to pull the code?

Has anyone ever used the JTAG interface with a processor?

Thanks for the help!

-- Edited by Don at 13:48, 2008-01-25

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jtag used with any jtag enabled device is about the same drill

find the device spec and datasheets ( which you got )
find a jtag interface/ prog software to match the device ( lots and lots of google will help with this , if you cant afford the professional kit there is always an open source alternative )
Read the eeprom code out the jtag to whatever file format is being used, ( some intel hex derivetive i bet ) Modify then pt back in with the same software.
Yep exactly the same as prog fpga, in both cases you are programing e2prom ( fpga's are configured on initilisation by local serial e2prom )

What about unused pins? is there anything in there like the denso's?

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