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Is there some way I can get a signal from A/D stored onto a DDR2 SDRAM, then stream the data out via a cable like USB or Ethernet? I'm using a Stratix III DSP Development Board.
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You can stream data from an ADC to memory. You need to calculate the data rates though. First, create an SOPC/Qsys system containing an Avalon-MM master (eg. the verification IP suite BFM), DDR memory controller and a DMA controller, and determine the maximum sustained transfer rate to your DDR memory. This rate determines the maximum sampling rate you will be able to run your ADC.
You can define your ADC as an Avalon-ST streaming source component, and then add that to SOPC/Qsys along with an SGDMA component, and using that you can DMA from the Avalon-ST component to the DDR memory.
Cheers,
Dave
Honored Contributor
