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Altera_Forum
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14 years ago

ALTLVDS_RX megafunction

Hi, guys: when i build a new project with HDL and megafunction , I use the ALTLVDS_RX for adc data(8 channels and deserialization factor is 1) and it works . Now, I want to generate a system i...
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Altera_Forum
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14 years ago

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And what are Avalon-ST 'source' and 'sink' ?

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Altera's definition of a streaming bus. Read the Avalon Interface Specification.

http://www.altera.com/literature/manual/mnl_avalon_spec.pdf

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How about SG-DMA ?

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You still need to make the ADC look like an Avalon-ST component, so that you can connect it to a DMA controller.

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On my board, a ddr2 is used for Nios ii CPU ,and I allocate some space for adc data . So I want to stream the adc data into ddr2 sdram and then stream out via uart port.

Which Avalon-ST components are all right ?

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There are DMA controllers that can transfer data between an Avalon-ST component and bus master an Avalon-MM bus to access a DDR controller. I've never used any of them. I just write my own when I need them.

Cheers,

Dave