Re: [Xc3sprog-users] Trying to write to SPI of Nexys4

[Uwe B. <bo...@el...>]

>>>>> "Sven" == Sven Oliver Moll <xc3...@sv...> writes:

    Sven> Hello, I'm trying to write to the SPI flash of an Nexys4
    Sven> board. Uploading and running bitstream either via USB or via SD
    Sven> card works fine, but I can't get it running from flash. As far as
    Sven> I can tell, there's a matching "bscan_spi"-code missing.

    Sven> I'm using the board for the sole purpose of running the MEGA65
    Sven> core only (http://mega65.org), so I'm not writing any vhdl-code,
    Sven> and don't have an IDE for creating FPGAs.


    Sven> So here are my questions:
    Sven> - Is my assumption about the missing bscan_spi for the
    Sven>   Nexys4 correct?

The bscan_spi file is specific to a FPGA, not a board. So there are chances
that there is a bscan_spi file already available. What FPGA is used?

    Sven> - Will it work (as in getting it to load bitstream from flash on
    Sven>   startup) once I've got a working bscan_spi?

Start with getting in contact with the FPGA. Is is recognized?

    Sven> - Can I use any of the other bscan_spi already
    Sven> provided?

Perhaps. Your mails misses information about the FPGA used.

Regards

-- 
Uwe Bonnes                bo...@el...

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
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