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Do you have any documentation on any library written for accessing ADC/DAC channels?
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There is no 'accessing' of ADC/DAC channels.
You create data streams (samples) to send to DACs and you receive samples from ADCs.
You create Avalon-ST (streaming) components to feed samples to DACs, and you can treat an ADC data stream as an Avalon-ST source (that has no backpressure).
The only thing a NIOS II processor can do when dealing with high-speed (high-data rate) devices like DACs (or ADCs), is setup packets in memory that are then consumed (or produced) by the Avalon-ST streams that ultimately connect to the ADCs/DACs.
Before trying to create a wireless communication link in an FPGA, you first need to understand how to create one in a tool like MATLAB. Then you will have a better understanding of data (samples) flow.
Cheers,
Dave
Honored Contributor
