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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

-CPU is reading all zero's

-I am trying to read my custom designed IP.

-I am monitoring ADDRESS signal on my slave side

-CPU has no cache

I've did this sort of thing 1 year ago & was successfull. Appears to me to be a Quartus\QSYS bug. I am using version 12.0 sp2