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RE: [lpc2000] LPC210x SPI

2004-05-16 by Michael Mathews

Milos,

The SSEL pin must be pulled high from what I make of docs/posts. I put external pullup on it to get working and am using GPIO lines for my CSs. I was hoping to know like you if could use SSEL to CS (instead of GPIO) my first SPI device to save a pin but work on higher-pri projects came up ...

Mike

At 04:48 PM 5/15/2004, you wrote:
Hi,
I was able to get it to work once I put the SSEL to High… is there a possibility to get the SPI to work without having the SSEL signal. The amount of pins is limited and wasting one of the pins like that is just not an option.
Thanks a million,
m.

From: Milos Prokic [mailto:milos.prokic@...]
Sent: Saturday, May 15, 2004 7:25 PM
To: lpc2000@yahoogroups.com
Subject: [lpc2000] LPC210x SPI

Hi everyone,
I’m trying to get the SPI module to work. The description seems very straight forward, but for some reason I’m not getting any activity on the SCK pin nor on the MOSI…
Do I have to have SSEL also “selected” through the PINSEL block? The chip will always be a master, hence I never need to change modes. But I have to say that the doc is a bit fishy about that.
I was wondering if anyone has simple example of the SPI code just to compare it with whatever I have…
Thanks in advance,
m.





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