On an analog scope, a burst of I2C data looks like a stream of bullets.
After beating my head against the lab bench during the last encounter with
I2C, I've concluded that one needs an I2C sniffer to really troubleshoot one
of these systems.  (Unless of course one has a $10,000 scope ;-)  This would
be a passive beast that would sit on the I2C bus and report when it sees a
start bit, address, ACK or data, and also report which is which.  I could
imagine sending the info out over an RS232 line, and also displaying it on a
4-line LCD, since a lot of conversations on an I2C bus might be pretty
short.  Didn't find any such animal in the PIClist archives.  Has anybody
looked  into this?


-- Lawrence Lile
Sr. Project Engineer
Salton inc. Toastmaster Div.
573-446-5661 Voice
573-446-5676 Fax

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