> I think I may have found the problem. Being the persistent type
> and double-checking that the IC is still alive I prodded around
> with the scope and found that Reset was low, even though it
> has a pullup. There was the minutest solder bridge to 0V under
> some flux. Man, I had to look hard for it, but it's gone now and
> the code flow has improved markedly. Well, it would do wouldn't
> it ?
>=20
> Now, Ken, should I still trust myself after working all day with a
> chip that's been in flipping reset ? 8-O
>=20
> BTW, if anyone does still see room for improvement in the
> posted code that would be appreciated

What about a timeout when waiting for the ack?

If the slave doesn't respond (due to being busy with a previous=20
request or being disturbed by noise) the code will hang forever=20
waiting for an ack that will never come.

Regards / Ruben
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
Ruben J=F6nsson
AB Liros Electronic
Box 9124, 200 39 Malm=F6, Sweden
TEL INT +46 40142078
FAX INT +46 40947388
ruben@pp.sbbs.se
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D

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