DMA - Controller [Cyclone V, DE1SOC]

[Central1]

Hello,  I am trying to perform an FPGA TO HPS and vice versa communication using the following method. (This platform designer design isn't made by me, took it from the cornell website).

So what i want to do is to add a bunch of PIO's and the design in order to have an exported signal to the verilog (top level module).

Should i connect the PIO to the write_master of the DMA, when i want to send data from HPS TO FPGA? (is this way possible? for exporting a signal into the verilog?) 

I checked on the intel website how to use the dma for reading/writting, data transfers, burst transfers and it's control registers , interrupts extc.

thank you!

[EBERLAZARE_I_Intel]

Hi,

There is DMA for FPGA and DMA for HPS, which one are you referring to?

[Central1]

Hello, both. I am trying to use the DMA to send data from HPS to FPGA, and receive the data back from FPGA to HPS. [But the wires that we are sending data and receiving data with to be exported to the FPGA Verilog top level].

Basically i have an monochromatic image in my c code on my hps ( in form of a 2d array), i want to send the data from HPS to FPGA using dma, then on the fpga i want to do some processing on them ( apply on them a digital image filter), and then send the pixels of the image back to FPGA using DMA .

Also i have a question, the c code we put on linux is stored on the sd card inserted into the fpga ( the one linux is intalled on?) or on the sdram?

[EBERLAZARE_I_Intel]

Hi,

I may need sometime to help you with this issue, please expect delay in my respond.

Thanks and I appreciate your patience.

[EBERLAZARE_I_Intel]

Hi,

Unfortunately, we do not have the particular design example, for the HPS DMA you may refer to:

https://www.intel.com/content/www/us/en/docs/programmable/683126/21-2/dma-controller-45584.html

For the FPGA DMA:

https://www.intel.com/content/www/us/en/docs/programmable/683130/22-3/dma-controller-core.html

You application C code can be stored in the SD card, and be loaded whether in U-boot or Linux.

[EBERLAZARE_I_Intel]

Hi,

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