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Es scheint dass es ein kleines problem gibt! Ich nem an dass ein paar bits kommen nicht vom AN2315SC zu die DACs. Aber welche?

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It looks like I've got a small problem. I assume that some of the data lines are broken and therefore the DACs aren't seeing all the bits coming from the AN2315SC. But which data lines?

Hmm,

I see six or seven different positions for each axis, so at least D7, D6 and D5 are working. It is not so easy to recognize if D0, D1, ... are working.

Check the data lines (DAC pins 13,14,15,16,4,5,6,7) for short circuits or bad connections. If that doesn't help check with an oscilloscope if the voltage level of these lines changes. Maybe the outputs of the microcontroller are damaged.

Greetings,
afrob