Hans Blichfeldt wrote:

> I would appreciate a bit of help with
> the following:
>
> I am trying to use a Phillips PCF 8593 which is
> a clock calendar circuit with i2c-interface.
>
> I can write and read registers in the circuit, this
> works and is confirmed by writes and read backs to check.
> The oscillator seems to work as the 1 Hz test signal
> output is working.
> The control/status register is loaded with 00.
> Re-set has been tried before or after writing the
> control/status register and both too.
>
> I cannot find any time readings - all shows 00
> - does anybody know if the circuit has to be
> activated in some way?

I think it starts up in a counter mode. I could be wrong, so check it out.

--
Friendly Regards

Tjaart van der Walt
mailto:tjaart@wasp.co.za

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