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Observer ahmedmohamed85
Observer
367 Views
Registered: ‎07-02-2015

AXI Memory mapped to stream vs AXI DMA

Hi all,

what is the difference between AXI DMA and AXI Memory mapped to stream? which one should be used to send data from Zynq to stream FIFO as both can be used for this task

Best regards

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3 Replies
Voyager
Voyager
361 Views
Registered: ‎02-01-2013

Re: AXI Memory mapped to stream vs AXI DMA

The AXI DMA IP is the general-purpose, high-performance IP one should use to move data between memory-mapped devices (e.g., BRAM and DDR), or between memory-mapped device and AXIS stream interfaces.

The AXI MM-to-Stream IP is a specialty IP designed to encapsulate entire AXI MM transactions and move them over an AXIS interface (e.g., between two FPGA's). It's a way to 'extend' an AXI MM interface, without requiring all of the (possibly hundreds of) IO pins.

-Joe G.

 

Observer ahmedmohamed85
Observer
339 Views
Registered: ‎07-02-2015

Re: AXI Memory mapped to stream vs AXI DMA

So if i want to send data from ZYNQ PS to AXI Stream Data FIFO shall i use AXI MM-to-Stream IP?

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Voyager
Voyager
331 Views
Registered: ‎02-01-2013

Re: AXI Memory mapped to stream vs AXI DMA

No.

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