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

Hans de Roode hans at rotronix.co.nz
Wed Feb 15 08:52:58 CET 2006


Hello Tim,
It's very difficult to see the start on the TWI because the pulse is
only a few uS and happens only once, so the scope's trigger level has to
be right to see anything.
Hope this helps,

Hans.


-----Original Message-----
From: Peter Sodermanns [mailto:peter.sodermanns at aixcon.de] 
Sent: Wednesday, 15 February 2006 20:20
To: Ethernut User Chat (English)
Subject: Re: [En-Nut-Discussion] TWI initialization - new attempt

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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