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Altera_Forum
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20 years ago

Where does the boot loader come from

Hello: I've got a NIOS 2 running out of DRAM. So I plan to put the configuration into epcs (done) and put the application program into a FLASH (also done). I used elf2flash to creat...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

George,

Most anyone who's programmed flash (either CFI or EPCS) on one of Altera's dev. kits has used these bootloaders. They are what's used to boot the "factory" designs.

In the case of the EPCS device, the bootloader gets placed into a small onchip memory that's part of the epcs_controller. When booting from a CFI flash, the bootloader gets prepended to whatever application code you'd like to copy from the flash into volatile memory. The code is pretty well commented, as well!

Cheers,

- slacker

P.S.: Yes, I work for Altera.