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Altera_Forum
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19 years ago

How to control DMA core?

I am doing a project which need to use PCI core. Since I am not going to use the NiosII, so DMA become my option. My question is: how can I control the DMA to read the data from PCI and write i...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

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First, how do you plan to control the DMA engine? From the PCI bus?[/b]

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Can I control the DMA in both way? Either from the PCI bus or from an user ip core in the inside of the FPGA? What do I need to do? In either way, how can I set the source/destination address and the interrupt to the DMA?

If I want to control the DMA from inside, I shoul connect the User IP core to the DMA&#39;s "control slave port", is that right?

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Second, I gather you want the board to master both PCI reads and Memory writes or are you just trying to access memory from the PCI bus?[/b]

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Yes I want to set the PCI as a master device, so is the memory controller.

Thanks for your reply, Mike.