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Sijith's avatar
Sijith
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

Debugging PCIe DMA transfer example design

Hi, I would like to have your continued support on this thread. Unfortunately this ticket got closed https://community.intel.com/t5/FPGA-Intellectual-Property/A-design-based-on-the-PCIe-DMA-transfe...
Pcie
VenT_Altera's avatar
VenT_Altera
Icon for Frequent Contributor rankFrequent Contributor
2 years ago

Hi @Sijith,


Thanks for the update.


From my understanding, if you're following the entire design provided (In Chapter 7.6 PCIe Reference Design - DDR4) with no modification, you can directly install the PCIe Driver and follow the steps to execute the application program, PCIE_DDR4.exe, provided by Terasic. This will allow you to perform 4 GB data DMA for both SODIMM as demonstrated in DE5a_Net_User_Manual.pdf, which you have previously tested.


However, in your case, you have modified the design to suit your own application, which means you no longer wish to perform 4 GB data DMA for both SODIMM, I do not think merely making changes in ../PCIE_DDR4.cpp would be sufficient. In Chapter 7.4, subsection 'Create a Software Application', the necessary procedures to follow in order to create a desired application are outlined. I'm not certain if the TERASIC_PCIE_AVMM.dll consists of the API you need for your desired application. If it does not, you will likely need to modify the driver and create a new application. Please consult with the Terasic software application or driver expert on this matter.


Thanks.

Best Regards,

VenTingT