> The last three instructions would seem (to me) to cause an
> endless loop. The PIC has set the interrupt flag when the
> data has been clocked out and the ACK bit clocked in.  You
> then clear the interrupt flag and wait for it to be set again, but
> with nothing in SSPBUF that interrupt is not going to
> happen.  I may be missing something...

Think it happened to work because sspif had not been cleared
beforehand and was still set from a previous operation

I've had a go at cleaning it up, mainly removing superfluous and,
for this test, unnecessary usagage of sspif

http://home.clear.net.nz/pages/joecolquitt/mssp_i2c.html

It looks pretty succinct and the result is what I want. Hopefully
all the ducks are lined up now

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