Am 06.01.2016 um 15:58 schrieb Cornie Malan:
> I suspect the read is just a dummy to complete the command, but it does
> return a byte?
>
Datasheet says it returns the value read from PIO input circuit while
the pulse is generated. As the PIO pins are open drain, this doesn't
have to be the same as the desired output state.
I think this function is mostly useless. We can just ignore this data.
> I want to make a low power passively powered opto-isolator to switch
> 230Vac. I will generate a passive Vcc at the chip, otherwise the pulse
> will not work. My other option is to switch and let the device do a low
> voltage reset when the power line collapses. I am not sure that planning
> for the supply to collapse will be reliable?
>
So, you want to use that pulse function to avoid the need for a watchdog?
Kind regards
Jan
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