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Altera_Forum's avatar
Altera_Forum
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15 years ago

fail to boot from norflash to sdram?

hi~~~everyone~~ I have a problem,I use the tool quartus 9.0(sp2)+ IDE9.0(sp2) to embed a nios system on my board. The Fpga device is CycloneIII.cpu clock is 100Mhz, sdram clock is 100Mhz,and pha...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Where is your Reset Address pointed on the Nios II CPU Wizard (it should be pointed at the norflash's base address)? How are you programming your norflash?...your EPCS?

Use elf2flash and sof2flash, along with nios2-flash-programmer (or the Nios II Flash Programmer in the IDE) to program your flash content.

Regarding printf...no known bug. If you're seeing this over jtag_uart, then I'd suspect some sort of SI (signal integrity) issue.

Cheers,

--slacker