AD9850 DDS code

[sean-h]

I will like to understand what are OUTPUT_1 and OUTPUT_2 : any help? Sine or square ?
What about the other two outputs ?
What is the purpose of R_13 Trim ?

The module has two outputs for Sine Wave and two outputs for Square wave.

In Henriks handy pin-out picture he shows the two sine waves outputs, the next two pins above are the square wave outputs.

Played with a module today and the code examples Henrik supplied work great and thank you Henrik.

The Pic Chips tend to max out at 25khz when pulsing stepper drivers which retricts the speed when running them at say 2000 pulses per revolution. It limits you to a max of around 500 RPM.

Now with the DDS boards + Pic Chip combination, I had some stepper motors here today hitting over 5000 RPM no problems at all.

Great little modules and good prices.

Cheers

Sean.