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Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: VPB bad read behaviour

2004-01-30 by Richard

It came straight from Philips, it hasn't made the errata yet.

Richard

--- In lpc2100@yahoogroups.com, Robert Adsett <subscriptions@a...> 
wrote:
> At 06:14 PM 1/14/04 +0000, you wrote:
> >Again, proof that this group is on the cutting edge of LPC2100
> >development.  ;-)  The VPBDIV read problem is official, official
> >philips description:
> >
> >The problem of read of VPBDIV register is confirmed: read of VPBDIV
> >register may return a wrong  value. The workaround is to read the
> >VPBDIV register twice consecutively and the second read always
> >returns the correct value. The write to VPBDIV, the function of
> >VPBDIV and the other VPB/AHB registers are not affected.
> 
> Richard, where did you find this?  I'm updating my comments so I 
can 
> include a reference to this but I can't seem to find it.  The 
errata sheet 
> does include a note about an SPI problem but I didn't see anything 
about 
> VPBDIV.
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always 
restrictions,
> be they legal, genetic, or physical.  If you don't believe me, try 
to
> chew a radio signal. "
> 
>                          Kelvin Throop, III

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