I have an I2C to RS232 board that uses a 16C63 (or 16C66) available for I2C
communications. It's used in master mode. Could the I2C interface on the PIC
listen to the traffic without ack'ing the data? It would have to ignore the
address.
Is there a 'need' for this type of I2C device?


Andy Kunz wrote:

> Thanks, Win.  I'll check into that!
>
> Andy
>
> At 02:05 PM 8/26/98 -0400, you wrote:
> ><Andy Kuntz writes>
> >
> >>Does anybody have an I2C bus snooper?
> >>
> >>I need to be able to see all the data that's being passed back and forth
> >>between two ICs so I can determine where some invalid data is originating.
> >>I sure don't need to re-invent the wheel.
> >>
> >
> >An outfit called MIIC ((609) 466-1751) makes DOS and Windoze
> >software with I2C probes.
> >
> >12.5 KHz or 100 KHz data clocking but the software doesn't
> >seem to sample faster than 50us -- Windows is slower than
> >DOS, but not by a lot.
> >
> >Odd thing is that requested data can't be saved in a file.
> >
> >If your data isn't moving too fast this might work.
> >
> >Cheers,
> >
> >Win Wiencke
> >Image Logic Corporation
> >ImageLogic@ibm.net
> >
> >
> ==================================================================
> Andy Kunz - Statistical Research, Inc. - Westfield, New Jersey USA
> ==================================================================



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