[En-Nut-Discussion] TWI initialization - new attempt

[Douglas Pearless]

Do you have any pullup resistors on the SDA and SCL lines?

Douglas.

Peter Sodermanns wrote:

> Tim Tait schrieb:
>
>> Out of curiousity, what are the levels you see on SDA and SCL?
>
>
> They both show a logical zero (some millivolts).
> If I configure port D as output also logical ones appear, so 
> physically the outputs are ok.
>
>          Peter
>
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