Re: [avr-chat] I2C controller: INT flag a bit leaves me confused !

[Vincent Trouilliez]

On Tue, 3 Mar 2009 05:07:26 +0100
Vincent Trouilliez <address@hidden> wrote:

> ...but not acknoledged, 'cause I blew the
> slave (PCF 8574, I/O expander, cheap way to test that the bus was
> working, by lighting LED's via this chip) when supplying it
> accidentally with unregulated 12Volts rather than the regulated 5
> Volts, oops !!! :-O  Poor slave... Will get a new one first thing
> tommorow, and hopefully everything should then be working :-)

Geez, some things just don't want to die !!!
I found a bad ground (the slave was a on dodgy solder less bread board,
not soldered on the target). I made a better ground and hey preto,
the slave now acknowledges it's address and data !

Who said electronic integrated circuits were fragile ?! ;-)
I am amazed...


--
Vince