mc9s12h microprocessor data merge.

[dmbaile2]

I need to merge the data on one microprocessor to a new one. This microprocessor is a mc9s12h128vfv, there is a six pad programming port on the rear of the circuit. Is there a way I can extract the data from one microprocessor and merge it to the new one without removing the chip from the circuit? With either a diy programmer and a standard computer?

 

[IRstuff]

What data are you referring to? Unless it's the same model of microcontroller, it's unlikely that the machine code will even work.

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[dmbaile2]

It is the same microprocessor in the same part,an instrument cluster, I just need to merge the data from the old one to the new one. I know the data can be accessed and manipulated via fancy programmers. But I just want to simply merge the data from the old unit to the replacement. My other thought is to attempt to unsolder it and re-install it on the new device. However, I was hoping there was an easier way..

The pads on the pack represent the following paths, Power, BDM, Reset, and Ground. If that makes sense...

 

[IRstuff]

If this is OEM equipment, then it's highly likely that the OEM has locked the code, which is what I would to do to prevent people like you from willy-nilly copying the code.

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[MacGyverS2000]

And if it's a high-volume item, the code is likely in masked-ROM, which means you won't have access to it. And you'd need more than one GPIO (BDM) to get the code out of there, too.

Dan - Owner

http://www.Hi-TecDesigns.com

 

[dmbaile2]

Is it possible to safely de-solder it and reinstall it?

 

[IRstuff]

Anything is possible. But is it likely? Not really, unless you have a well-developed re-work capability.

TTFN
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[MacGyverS2000]

In a nutshell, this is not a job for a hobbyist...

Dan - Owner

http://www.Hi-TecDesigns.com