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Square wave output using fmcdaq2

Thread Summary

The user wanted to output a 1 kHz square wave from the AD9144 DAC on the FMCDAQ2 board. The solution involved modifying the HDL to add a square wave generator using the `dac_dds_phase_0_0` signal and setting the `dac_data_sel_s` to `4'h3` to select the square wave output. The user also needed to ensure the JESD link was properly configured and the DDS frequency was set correctly. Oscillations in the square wave output were resolved by further adjustments to the HDL and ensuring the DAC's output filters were appropriate for the low-frequency square wave.
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Dear EngineerZone community


Please support.

I am currently creating a communication system.
The concept is to generate an information signal with vc707 and output it as a Square wave from the DAC (ad 9144) of fmcdaq2. Then, the output Square wave is input to the modulator and communication is carried out.

Before that, I am trying to output a Square wave of 1 kHz (offset 0V) from DAC (AD9144) of fmcdaq2.
How can I do it?

Can you create a design as per the user guide and store a Square wave in the buffer?

I can use both Linux / no-OS.

Yuta

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