On Tue, Jun 06, 2006 at 06:51:35AM -0400, Timothy Miller wrote:
> The fact that the last address bit and
> the first read data bit are on different edges of the same clock pulse
> makes it a bit tricky.
But that's the nature of SPI, at least in some modes.
>
> So the way I first tried it, I too made the observation that things
> are done in bytes.
Yup.
>
> Well, it looks like you're doing it right. One thing to note is that
> different SPI controllers use different command numbers.
That's because the commands aren't part of the SPI protocol.
They're device-specific. Most of the SPI implementations I've done were
simple shift registers. Even buffered DACs don't have commands, just
control inputs.
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