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Altera_Forum's avatar
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

Well I've confirmed with Altera Technical that that is the correct boot loader program.

I've programmed the epcs device and I've programmed my flash device with the loader and application code(s).

But on porwe up the epcs configures the FPGA but no code is executed. It seems that the SDRAM 0x400 0000 to 0x7FF FFFF (spacing for clarity) in connected to both the NIOS instruction and data masters. But the flaos 0x800 0000 to 0x9FF FFFF is only connected to the NIOS data master. How can I get the NIOS to execute code from the FLASH.

Reset vector is pointing to FLASH.

gm