Lpc2000

if you are using spi as master then SSCS cannot be
used to select slave devices ,you have to use one of
the gpio for selecting slave device

but never forget to tie SSCS To tie to Vcc in spi 
master mode

SSCS is to select LPc device as slave by an other spi
device,but not to generate any signal,

thanks 
shridhar
--- Chris <chris_e_gr@...> wrote:
> Art Sobel wrote:
> > In the process of attaching some SPI peripherals
> to the chip I ran
> > into some strange  behaviour.  There are 4 pins to
> use, SPICLK, 
> MISO,
> > MOSI and SSCS, First the SSCS pin must be
> configured as an SPI PIN 
> or
> > the other parts of the SPI don't work at all, Next
> the SSCS signal 
> is
> > not generated, This means that I must use another
> GPIO as the CS
> > signal. So now it uses 5 pins ......
> 
> Maybe I misunderstand, but do you really mean that
> the pin 
> configured as SSCS does not produce any CS signal? 
> So it's just 
> useless, and you have to use yet another pin for
> this?  
> 
> I'm designing a circuit that will use SPI, and I was
> assuming I 
> could use the SSCS for chip select.
> 
> - Chris Graham
> 
> 



	
		
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