Re: [f-cpu] testing

[Yann Guidon <whygee@f-cpu.org>]

hi !

Juergen Goeritz wrote:
> On Fri, 15 Feb 2002, Ben Franchuk wrote:
> 
> > With all this talk of testing -- why not a have nice 12 bit micro -
> > micro computer add,nor,store,jc - instructions and have it test out the
> > main F-cpu. If you really want to be sneaky have a core logic block
> > tested by normal means of a minimal F-cpu that then tests out the rest
> > of system. All that cache and main register file is a good bit of
> > program space.
> 
> Hi Ben,
> 
> do [you] really want to create a recursive problem?

ROTFLMAO ...

> JG
WHYGEE
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PS: to answer Kim, there must be a dedicated "BIST" unit in the pipeline,
which overrides the scheduler and performs the integrity check of most
of the ressources (let's say : 80%). The rest is done with a scan chain
for the ressources which are not directly addressable by the execution
pipeline. BIST could be extended later to include a L2 and SDRAM check
routine (it's not difficult).
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