Programming Sound Port DAC Directly
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Author:  bear [ Thu Jan 30, 2014 12:45 am ]
Post subject:  Programming Sound Port DAC Directly

I want to do some debugging where it would be useful to have a programmable analog output (DAC) – the output of the DAC would be displayed on an oscilloscope. I don’t think the motor outputs are suitable for my purpose. The Cortex has a “speaker port” which probably has the hardware capability that I need, but there does not seem to be a way to program the DAC output of the speaker port directly. Does anyone know how to do this?

I do not want to play music or sound files.

Author:  CARBOT [ Fri Jan 31, 2014 1:11 pm ]
Post subject:  Re: Programming Sound Port DAC Directly

Motor ports 1 and 10 on the cortex are for connection of DC motors directly and would work will for connection of your scope. Motor ports 2 through 9 are PWM outputs which a motor controller would give you an analog output.

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