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Altera_Forum
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14 years ago

Connecting Custom Logic to M4K block?

Hi, I have built a system which loads images from SDCARD to the onchip memory in Cyclone II in DE2-70 board using NIOS II IDE and C code .. Now I need my custom logic modules to read the ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Yes, you need to wrap your custom logic into a custom SOPC component so that you can connect it to the SOPC system.

You'll either want to

a) design your custom component with an Avalon-MM interfance and DMA capable

b) design your custom component with an Avalon-ST interface and use the "sgdma" component to perform DMA

Or maybe a third option:

When reading the image from the SDCARD, store it directly into your custom component, instead of having a separate onchip memory component.