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Changing Wait States in TS101 Tiger SHARC

Started by joe August 4, 2004
Hi, I hope someone can help me with my problem. In my DSP program I
want to change the wait states during the execution of my program, but
I can't get the DSP to change the wait states. It appears the wait
state settings are locked in at reset. Does anyone know if it is
possible to change the wait states during execution, for example,
change the wait states to read external memory and then change them
back after the read?

thanks,
joe
"joe" <jjlindula@hotmail.com> wrote in message
news:880397ee.0408040928.72e31bfe@posting.google.com...
> Hi, I hope someone can help me with my problem. In my DSP program I > want to change the wait states during the execution of my program, but > I can't get the DSP to change the wait states. It appears the wait > state settings are locked in at reset. Does anyone know if it is > possible to change the wait states during execution, for example, > change the wait states to read external memory and then change them > back after the read? > > thanks, > joe
I'm not sure of the TigerSharc specifically, but the Sharc family in general shouldn't have any issues in setting up the WAIT register (which sets up the wait states). Why do you want to setup the wait states before accessing memory and revert to another value? Wait states don't affect internal accesses, so you should just set it up at the initialization phase in your code and not mess with it. I'm sure others with TigerSharc experience will chip in with more details... Cheers Bhaskar