[Techtoolslist] Fluke 9010a 68000 Pod Eprom TestingonOutrun- help please !!

[John Robertson]

Mike Coates wrote:

> If a 68000 system uses 8 bit roms then they will be interleaved in the 

> memory map, hence generating the rom signature for just the 8 bit rom 

> on it's own is not going to match.

>

> I guess it either uses a different algorithm, or you need to 

> interleave the two roms, and generate the checksum for the new double 

> sided rom.

>

> biggest pain I found with the Fluke pod is that you can only do 16 bit 

> read/writes - I had some hardware that had a custom chip that 

> processed 32 bit writes, so had to 'poke' some machine code in to ram 

> and call that to do the job.

>


Hey, the machine runs on a Z80!

It was designed in the mid to late 70s after all...8-bits was king, 16 
and 32 bits were minis or supercomputers.

John ;-#)#

> On 09/06/2010 21:29, Colin Davies wrote:

>> OK... That kind of makes sense.....When I get my pod pluged into the

>> working board again (once I've fixed the header) , I'll try to do some

>> homework !!!

>>

>> eg.... read location 0000 in.... and see if its 16 bits and the pair of

>> 8 bits matches the first bytes of both roms :-)

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