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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

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originally posted by gmm50@Oct 25 2005, 08:48 AM

2.) the flash devices were connected to the tri-state bus. that bus was not connected to the instruction and data master on the nios side.

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Yeah, that's one of those mistakes everyone makes once and never again.

BTW, the rationale for 8-bit transfers is that the various blocks of data in the program may not necessarily have sizes that are multiples of 2 or 4 bytes. It's barely alluded to in the bootloader source comments.