Lpc2000

At 11:54 AM 5/26/05 +1000, Bruce Paterson wrote:
>Robert Adsett wrote:
>
> > You can see this in the newlib-lpc source.
>
>Incidentally Robert, I had to add a couple of volatiles to the
>newlib-lpc lpx2XXX.h file in my case where you'd left them out (but most
>registers had them). Probably for a case you weren't expecting, but I
>was re-programming PINSEL registers before sleeping.
>
>Gcc had done a trick of moving the updates around since not specified
>volatile and of course it had weird (and non-obvious) results. Only
>found the problem eventually by looking at the assembly code.
>
>May be worth having a thought experiment on any other non-volatile
>registers specified.

Your right.  It probably would be.  I try to put them in only where 
necessary.  It's probably worth a check to make sure const is in there as 
often as possible as well.

Robert

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