Hi Mark,
Thanks for your assistance,
5V on pin 8
4k7 pullups, have also tried 2k2s
pin 3 gnd
pin 4 gnd
both 5&6 are normally sitting at 5v and do go low (pulsing) during transmission, can see it with logic probe if I use i2cdelay=255
Don't know about the 12.5 load capacity for the xtal.
No other stuff connected to I2c
On the PCF8583, I tested as you suggested, I2C still works even with the xtal out of circuit.
Like I said, this ones got me stumped. It's only 8 Pins
I2c scan just goes thu and detects nothing.
Regards
Deanus
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