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Altera_Forum's avatar
Altera_Forum
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13 years ago

Avalon bus addressing wrong

Any idea why in my C code I poll address 0x8000 but actually see 0x0c00 (divide by 2) on Avalon address signals utilizing SignalTap? I would expect to see 0x2000 (divide by 4).
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I am triggering on NIOS RD signal & see address 0xC00.

Another observation is that when I run my code via Eclipse I would expect tool to stop at MAIN() then I click on RUN again. Eclipse does not do this and as mentioned I see NIOS RD's at 0xC00.

I've used these tools on other projects before but this issue has me stumped.