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Arbitary waveform generator using a micro-controller

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Tapajit Mondal

New Member
Hello dear friends,

The following image is that of a Data signal, one waveform is used to represent logic level 1 and other 180 degree phase shifted waveform represents logic 0. Can someone please provide some input on how I may be able to generate the following waveforms on a micro-controller ?

Regards,
TM
 

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MikeMl

Well-Known Member
Most Helpful Member
Do you need help with the code, or how to build a two-bit Digital to Analog converter?
 

MikeMl

Well-Known Member
Most Helpful Member
5V micro?
25mA or 40mA source/sink port pins?
What is the load? (capacitance?)

Here is a guess:

30..png

You may have to tweak the resistor values a bit after you see the loaded micro port voltages. PortA can source current to the voltage divider tap; PortB can only sink current.
 
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Tapajit Mondal

New Member
Dear Sir,
This image below is the signal on an Oscilloscope. The signal is generated from a Training Setup. Please let me know if any modification is required to the above circuit.

IMG-20161015-WA0013.jpg
 
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