Ron
We tried to read that NATIONAL SEMICONDUCTORS COP8622 when we first got into the P38 many years ago. nearly 10 actually.
It was a definate no no, locked, and a very secure processor at the time.
obviously containing the rolling code algorithm, and pre programmed for each specific vehicle via the 4 pads present on the PCB.
We could monitor its output and translate that into a Hex data stream, different every time you pressed a button, which i believe is now reverse engineer able to get the original 3 byte ID from the stream, but not by us.
However it would, at the time, have proved easier to reverse engineer the Motorola CPU of the BeCM. much weaker and containing the same algorithm.
In any event we passed on that and stuck to the diagnostics, although we did reverse engineer the BeCM CPU enough to provide our SM035 unlock software.
These days the COP Processor, like so many others, is quite probably hacked, and we get offers all the time, and for a few thousand pounds, or dollars you could no doubt get the code it contains given to you, but the question is, is it worth it any more?
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