Lpc2000

--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@...> 
wrote:
>
> Quoting Danish Ali <danish@...>:
> 
> > A quick sanity check:
> > You say you have no hardware attached.
> > You know you need a pull-up resistor on the SSEL pin,
> > which MUST be routed to the SPI block in PINSEL0.
> >
> > The user manual tells you that you can't use the SSEL pin for GPIO
> > on devices earlier than the 2148 - even if you only ever use SSP 
as a master!
> > Without this, if the pin (or when wired as GPIO, the internal 
floating net)
> > goes low, the SPI will automatically be a slave.
> >
> > imho this should be in an official "gotcha" document even if it 
is 
> > not an errata item.
> 
> See http://www.open-research.org.uk/ARMuC/LPC2100Tips.html
> 
> Robert
>

I just added a pull-up to SSEL and it appears to be working! Thanks 
for the help Danish and thank you Robert for the link; I'm sure I 
would have been falling into one of the other "gotchas" in the next 
few days!

Paul