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[Resolved] Ask about using Ft2232 SPI for reading/writing to Flash on Neso Artix 7

Discussion in 'FPGA Boards' started by Vu Quang Huy, Nov 16, 2017.

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  1. Vu Quang Huy

    Vu Quang Huy New Member

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    Hello,

    I use Neso Artix7 FPGA board for my project, and I need to both read/write files on FLASH to PC via USB 2.0 FT2232H:

    (Software on PC Windows/Linux) <---- USB 2.0 protocol ----> FT2232H <---SPI protocol---> FLASH

    I config Channel A of ft2232 as SPI with D2XX driver.

    I have spent more than 2 weeks to write a PC program to read/write Flash using D2XX, LIBMPSSE-SPI FT2232 lib with no success!

    Does anyone know how to do this?

    Thank you so much.
     
    Vu Quang Huy, Nov 16, 2017
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  2. rohith

    rohith Administrator Staff Member

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    Hi Vu Quang,

    Please check out this excellent open source tool by [amilkovich] which supports reading/writing Saturn, Neso and Skoll flash. You can get the correct logic from the source code of that tool.

    Tool: https://github.com/amilkovich/numato-loader

    Thanks!
     
    rohith, Nov 16, 2017
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  3. Vu Quang Huy

    Vu Quang Huy New Member

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    I have done successfully read write from Channel A SPI to flash with the code. Thank you so much for your reply.

    For an image of resoultion (640x480x2byte): Reading from Flash to PC takes ~1 second, writing takes ~25s. Do you have any idea to speed up the reading/writing process?
     
    Last edited: Nov 18, 2017
    Vu Quang Huy, Nov 18, 2017
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  4. rohith

    rohith Administrator Staff Member

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    Hi Vu Quang,

    It's good to know that you were able to finally read and write the SPI flash!

    As for the ideas on increasing the speed, unfortunately I'm not very experienced in that area, so I'm afraid I cannot help you with that. You might want to check out on internet.

    -Rohit
     
    rohith, Nov 19, 2017
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