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Altera_Forum
Honored Contributor I
1,197 Views

how to launch DMA by host port in own IP?

I designed a image capture IP with FIFO and DMA. I don't know how to desige the host port to launch the DMA which transfer the data from FIFO to sdram. I don't know how to relate the host port with DMA. 

Thanks very much!
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4 Replies
Altera_Forum
Honored Contributor I
42 Views

I'm sorry I can't see the links due to my low posts. 

But I want design it myself.Also the exiting ip is not suit for earlier device such as cyclone.
Altera_Forum
Honored Contributor I
42 Views

hi,skw2xx 

what is the meaning of host port ,cpu?
Altera_Forum
Honored Contributor I
42 Views

I am sorry. Actully,I mean the Avalon Memory-Mapped Master port.

Altera_Forum
Honored Contributor I
42 Views

 

--- Quote Start ---  

I am sorry. Actully,I mean the Avalon Memory-Mapped Master port. 

--- Quote End ---  

 

in my opinion,DMA transfer is lauched by CPU,FPGA is slave,only receive DMA command and response.
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