DAC Channel synchronisation

[Martin]

Hi,

I am trying to generate a differential sine wave with the two DAC channels. I modified the generate.c file to fill both g_awg_cha_mem[] and g_awg_cha_mem[] with the corresponding data. Is there an easy way to synchronize the output of both channels?
Has anyone tried something similar?

I'd appreciate any help.

Thanks,
Martin

[Nils Roos]

The two DAC channels run from the same clock, and can be started simultaneously, since the software triggers for both are located in one register.

So if you reset the ASG, set both channels up with sample data, frequency, amplitude and offset and then write 0x00110011 to the configuration register, both channels start generating output synchronously.

[Martin]

Thanks, this helped me a lot.
But I had to reset the state machines as well, therefore the configuration register needs to be 0x00510051.

[emmazhang]

Hi, I have the same question about channel synchronisation. Could you please tell me how to do it? Thank you in advance.

[Nils Roos]

You cannot do it from the web-apps.
After loading the waveforms into the bufffers, you need to open a console and use the monitor utility, or you write a program that does it.
Either way, after setting up your parameters, write 0x00400040 to the DAC configuration register (0x40200000) to reset the ASG, followed by 0x00110011 to the same address to simultaneously start both channels.