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Altera_Forum's avatar
Altera_Forum
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16 years ago

The best way to store a large data into SDRAM

Hi all

I need your help.

how can I store a large data into SDRAM, I tried RS232 but it slow.

plz help me.

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    You know you have a FPGA. You can usse everythink you are able to implement. So why not somethink like USB.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    USB is pretty easy to do this with, a long time ago I made a dumb little USB interface to bridge an FTDI chip to SOPC Builder in a schematic. They give you drivers for free and so all you would need is a DMA and maybe a protocol if you want to build more intelligence into it. I don't know what I did with it since I just through it together in a hurry but it only took a few hours to get my PC sending data back and forth at around 10kB/s (Nios II was moving data one by one so a DMA would be way better in terms of performance).