Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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!

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    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's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    --- 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.