Lpc2000

Hi John
Make sure you pull P0.7 (SSEL pin) to High (3.3V) I had alot of problems with this but It should resolve your problem.
 
Aminder

johnnorgaard2003 <john_2005@...> wrote:

Hi 
I am using lpc2106 and SPI.
I can't get it to work, it should be simple but..

Here is what I do
//----------------------------------------------
PINSEL0 |= 0x5500;      // enable SPI pins
SPCR     = 0x20;      // set master mode
SPCCR    = 128;            // SCK =pclk/128


SPDR = c;            // start transfer
//-----------------------------------------------

but there is no activity on the  SCLK.

1) Should be SSEL be pull-up ? (it is always low)
How do activate/deactivate SSEL ?
(in the user manual on page 127 is say SSEL is not directly driven by
the master.It could be driven by a simple general purpose I/O under
software control.)
2) Should I still select SSEL as alternate function SSEL or general
purpose I/O ?


Please if any one have used SPI and SSEL, please comment

best regards

John




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Regards,


Aminder Singh Athwal
		
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