Lpc2000

The purpose of my post was to indicate the SSEL pin must be used
and tied to the appropriate level for the SPI to operate.  Even if
used in MASTER mode.  I had remembered the level incorrectly but
thought the message indicated it was a guess and should be checked.
I found the following in my LPC2114/2124/2212/2214 manual.

Note: LPC___ configured to operate as SPI master MUST select SSEL functionality on
an apropriate pin and have HIGH level on this pin in order to act as a master.


Sorry about the confusion.

-Bill Knight
R O SoftWare



On Tue, 2 Mar 2004 08:10:22 -0500, James Dabbs wrote:

Reading through the message archives, I see conflicting information on
the SPI SSEL pin.  Bill Knight says the SPI SSEL pin must be pulled low
for the LPC210X to operate as an SPI master, but Aminder says it needs
to be pulled to 3.3V.  Page 127 of the user manual (that I have) implies
that this pin could be used as a GPIO in SPI master mode, and the manual
gives no mandate on the use of this pin in master mode.

What should I do with this pin?





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