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Beginner
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ALTERA Scatter-Gather DMA core

Hello,

I'm looking for a windows driver for the DMA feature.

Can you please help ?

 

Thank you,

Zvika

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Employee
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Hi,

 

May I know which driver you are looking for?

Do you make connection to on chip ram/rom through dma in Platform Designer?

If not, could you tell more detail about the driver?

 

Thanks

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Beginner
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Hello, Thank you for your reply. Do you have any experience with the DMA core described here ? https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_pcie_avmm_dma.pdf I have to develop a windows driver for it. Do you know if ALTERA provides reference source code ? According to the PDF, maximum number of descriptors is 128. Can you confirm ? What should we do in case we need more ? Best regards, Zvika
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Employee
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Hie Zvlka,

 

Please check my replies to your questions below:

 

  1. Do you know if ALTERA provides reference source code ? - No the reference source code is encrypted. Its only available for usage with Intel FPGA.
  2. 2. According to the PDF, maximum number of descriptors is 128. Can you confirm ? Yes it is.
  3. What should we do in case we need more ? You will need to use external descriptor using external memory. The information is available in the following user guide:

 

 

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an708.pdf

 

 

Regards,

Nathan

 

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Beginner
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Hi Nathan, Thank you very much ! Best regards, Zvika
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Employee
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Sure Zvika,

 

Glad I could be of help.

 

Regards,

Nathan

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