Lpc2000

Thank you Robert

The pull up on SSEL cured the problem!!

Regards

Mark Butcher


--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@a...> 
wrote:
> At 05:07 PM 2/23/05 +0000, Mark Butcher wrote:
> >After the last command the status register has the bit 0x80 (SPIF)
> >set to 1, indicating that the transfer has completed (before it 
was
> >at 0), but I see no data sent (neither signals on the clock line 
nor
> >the data line nor the SSEL line). In fact they all seem to be in a
> >high impedence state since I measure zero voltage (or 3V3 with a
> >pull up resistor).
> >
> >Therefore I conclude that I have problems setting the SPI ports to
> >the correct mode but PINSEL0 seems to be correct (which I have
> >verified several times to be sure).
> >
> >So what is the trick involved to get it working?
> 
> 
> SSEL must a - be an input and b - be pulled high.
> 
> See http://www.open-research.org.uk/ARMuC/index.cgi?LPC2100Tips
> 
> 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