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How can I transmit  data by DAC_DMA on ZedBoard and Fmcomms2?

Question asked by xujiuchao on Aug 7, 2018
Latest reply on Aug 8, 2018 by DragosB

Hi:

       I'm using ZedBoard + fmcomms2 + hdl-hdl-2016R2+no-OS_2016R2;As a beginner, I have debugged the reference project. There are three kinds of data sent by DDS ,LoopBack or DAC_DMA (sine_lut[128]), now I can send  data by DDS or LoopBack,but In the same way,I can not send data by DAC_DMA. 

I have defined "DAC_DMA" and used "DATA_SEL_DMA".

 

The steps I have taken:

 

1、 I defined DAC_DMA

2、I selected "DATA_SEL_DMA" as the input to function “dac_init”(dac_init(ad9361_phy, DATA_SEL_DMA, 1); )

 

 

SO where is the fault? What should I do and how to do?

I am looking  forward to your help.thank you!

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