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Re: [lpc2000] Re: Problems with using SPI

2004-10-12 by Aminder Athwal

John
 
Thats right you shouldn't have any problems now. I've got some code which you might find useful to read and write to pins. If you're intrested let me kno.
 
 
Aminder

johnnorgaard2003 <john_2005@...> wrote:

Hi Robert

Ohh, I see. The SSEL in only a input to the LPC2106 to act as a slave
or master. Not to select an external slave device.
For selecting external device I have to use another I/O Pin.
Thanks Robert.

Best regards

John

--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@a...> wrote:
> At 11:47 AM 10/12/04 +0000, you wrote:
> >Ok I now have pull-up on SSEL pin. But how do I control it. Setting it
> >low when selecting the device ?
> >IOSET and IOCLR have no effect when any pin in configured as secondary
> >function(user manual p.82)
> You can't.  When using the SPI if SSEL goes low the microcontroller
acts as 
> a slave.  To select an external device you must use another pin.
> 
> 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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Regards,


Aminder Singh Athwal
		
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