Re: SPI Problem

Question.  Are you setting up the SS pin as an output before enabling
the SPI port?  I had a similar problem on the mega8.  If I set up the
sfr's for the SPI port, then the sfr's for PORTB to set SS as a general
purpose I/O port, my settings for DDRB were be overridden.  On a SPI
command I would get one pass thru the SPI ISR and the part would switch
to slave mode.  No data, no SCLK, nothing would happen coming "out" of
the SPI port.

I "fixed" it by setting up the port DDRB and PORT sfr's first, then
setting up the SPI sfr's (basically enabling the SPI port after setting
up SS as an output).

Hope this helps.
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