[time-nuts] BC637PCI Flash Memory Dump
GandalfG8 at aol.com
GandalfG8 at aol.com
Fri Feb 14 17:01:11 UTC 2014
I've downloaded the flash memory contents from a BC637PCI card, it's a 128K
file but also had to save it as 64K to please the disassemblers I found
online.
That didn't look to be an issue, as far as I can tell only 64K is used
anyway.
The memory chip is a CAT28F010, as opposed to a 29F010 shown in the
schematics, and the processor is an MC68HC11F1CFN4.
If anyone wants to talk a look my files are here....
https://www.mediafire.com/?kavvrm2cow2365c
There's the two binary files there plus some of my efforts at disassembly
but I have to admit the disassembled files do even less for me than the
binaries:-)
Other than some messages at the beginning of the data area that seem to
relate to file update processes, perhaps for the GPS and oscillator options,
the only other obvious text string I found just said BC635IRIG.
I know that may not be too significant in itself but there's 512 bytes of
EEPROM inside the CPU and I'm wondering if that's handling the personalised
data such as serial number and configuration etc.
None of which helps with the 1024 week offset of course:-)
Regards
Nigel
GM8PZR
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