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Re: [avr-gcc-list] SPI slave select

From: Erik Christiansen
Subject: Re: [avr-gcc-list] SPI slave select
Date: Thu, 11 Sep 2003 11:09:03 +1000
User-agent: Mutt/1.3.28i

On Wed, Sep 10, 2003 at 05:40:08PM -0700, Jamie Morken wrote:

> For an SPI master (AVR) can I use the slave select pin as a general purpose
> output?  

I know looking is cheating, but taking a peek at Master Mode description
on page 138 of the ATmega16 data sheet:

If SS is configured as an output, the pin is a general output pin which does
not affect the SPI system. ... If SS is configured as an input, it must be held
high to ensure Master SPI operation.


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