Change of Frequency : demo_txcw code

Projects Reference Development Kit
1

Hi All,

This is with reference to the demo_txcw code.
May i know how the frequency of the NCO can be changed .
Also is it would be helpful if any one can provid me any snapshots of the spectrum of the demo_txcw code.

Regards,
Lakshmikanth

2

I think NCO frequency = FPGA reference / 8. Change reference frequency to change NCO freq.

Andrew

3

Hi Mr.Andrew, Thank you for the quick reply.
However my intention is to change the NCO frequency keeping the reference frequency constant.
Also it will be helpful if you share the snapshots of the spectrum .

P.S : I’m unable to observe the I and Q at TXI and TXN pins on Myriad RF Board