how to config fpga with flash?

Question

hi , i am Tig , a starter .

and my board is Nios II Embedded Evaluation Kit, Cyclone III Edition.

the flash device is cfi_16M.

i want to know how to use flash config the fpga

i have read the document "using Parallel Flash Loader "

but i am confused by the relationship between the fpga & cpld

actually , i don't know how to assign the pins

i tried to convert .sof to .jic , however , the board doesn't support EPCS

so ,

thanks all

altera_forum · Answer

Hi,

There are two types of Parallel Flash Loader(PFL). One is implemented to MAX II or other CPLD. It writes data from JTAG to Flash and loads data from Flash to any FPGA device. A function writing data from JTAG is called programmer, and one loading to FPGA is called loader.

Another is implemented to FPGA. It writes data from JTAG to Flash and is programmer only. Loader? Only the Cyclone III FPGA has dedicated loader circuit to load from Flash, and this must be the way to configure FPGA in your board. It is described in AN-478.

Probably you can use the "Factory Default PFL", so you just convert sof to pof instead of jic. All the pins for PFL are dedicated in the Cyclone III, so you don't need to assign them.

Thanks,

altera_forum · Answer

You have to convert the programming file in active parallel setting to file type *.pof.

altera_forum · Answer

thank u a lot.  can i use the Signaltap II to detect the signals  after programming the *.pof into flash device?  :)

altera_forum · Answer

Not for debugging  the configuration process.

altera_forum · Answer

so , that means the Singnaltap is disabled ?  thanks

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how to config fpga with flash?

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