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adfmcomms1 interpolation

Question asked by mashmaro on Jun 15, 2016
Latest reply on Jun 27, 2016 by DragosB

Hi On Line 174 No-Os code no-OS/main.c at master · analogdevicesinc/no-OS · GitHub

XCOMM_SetDacInterpolationFreq(valArray[i - 1]);

Does it mean that the interpolation freq is always set to the highest possible? (I tried some debug msg in setinterpolate function and it is indeed called)

Then does it mean that the dac clock I'm setting in the definit needs to be always 983040000.

By studying ad9122 datasheet, dacclk needs to be interpolationxdata clock. How is this reflected in the dds example? If, say, the dds freq is 122880000, should I set dac sample rate in the definit interpolation times 122880000?

 

Thanks and regards,

Yiqi

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