USB/Ethernet Example

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originally posted by daniellew@Aug 9 2006, 07:07 AM

i used the "standard" nios core example that came with the dsp board and copied the flash programmer description to the nios components directory (as the readme instructions suggested). when i open the sopc builder however, epcs serial flash controller is already added to the project. this serial flash uses u17 as its reference designator, and i can therefore not add cfi flash (which needs the same ref. des.).

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Yes, you have to deselect the board description at the top of the SOPC builder window.

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Even if the CFI was able to be inserted, how would the kernel get booted to SDRAM from it without a pinout?

Or is this to fake the IDE uClinux kernel project into thinking there is CFI so that you can boot it directly, via nios2-terminal?

**EDIT**

I found your post from July 19 about this same issue. I will try it that way and see if that solves these problems.[/b]

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Download the kernel using "nios2-download -g zImage".

The only way to add a real CFI would be to buy the Microtronix CF interface, or make your own. This isn&#39;t really needed, as once the design is finished, you can tack the zImage onto the end of the .sof file as is described in the wiki.

I&#39;ve also found that the easiest way to keep your SOPC description (.ptf file) syncronised between the Linux build system and your Quartus project is to keep the CFI component in SOPC, but just untick it before generating the system.