FPGA, SoC, And CPLD Boards And Kits
FPGA Evaluation and Development Kits
Announcements
Intel Support hours are Monday-Fridays, 8am-5pm PST, except Holidays. Thanks to our community members who provide support during our down time or before we get to your questions. We appreciate you!

Need Forum Guidance? Click here
Search our FPGA Knowledge Articles here.
4969 Discussions

ALTERA Scatter-Gather DMA core

ZVere
Beginner
404 Views

Hello,

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

Can you please help ?

 

Thank you,

Zvika

0 Kudos
5 Replies
MEIYAN_L_Intel
Employee
280 Views

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

ZVere
Beginner
280 Views
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
Nathan_R_Intel
Employee
280 Views

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

 

ZVere
Beginner
280 Views
Hi Nathan, Thank you very much ! Best regards, Zvika
Nathan_R_Intel
Employee
280 Views

Sure Zvika,

 

Glad I could be of help.

 

Regards,

Nathan

Reply