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Read a signal via SMA cable

Honored Contributor II

Hi, I am completely new to Quartus and DSP Builder and I am having a few issues. I have a Stratix III board with a data conversion card. I am trying to read a sinusoidal signal from a signal generator via SMA cable. How do I go about doing this (preferably through DSP Builder)? I feel that this should be very basic but so far I have had no luck and I am running out of ideas. Thanks!

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Honored Contributor II

You need the documentation from the ADC chip, it should give you some idea of the signalling/framing used to get data into the FPGA. It may be eg. SPI or some custom parallel bus. Once you have the data through the appropriately configured IO pins you need to shape the payload part as an Avalon-ST bus to have it easily consumed by DSP Builder.