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Another thought occured to me. I would like to be able to use the serial flash device to store lookup tables that are used and updated in the program. I assume that this would be possible in one serial flash (if suffieciently large) such that I can:
1) Configure FPGA
2) Load NIOS code into SDRAM
3) Store lookup tables for use by main program.
I would imgaine that as long as I make sure that I dont overwrite the config and C prgram it should be OK?
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Yes, this will work fine. I'm planning on putting a Spansion S25FL512S device on a board I am working on. Its not an officially supported AS device, however, the serial flash command codes are identical. The device can be configured to operate in Quad-SPI mode, so once the Cyclone IV E has configured, I will be able to access the flash much faster for reads (writes involve 'programming' delays, so the Quad nature is not as much of a benefit there).
Cheers,
Dave
Honored Contributor
