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Altera_Forum
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16 years ago

Nios+PCI doesn't work together, help.

I create Nios+PCI compiler (PCI target 32-bit) system on Cyclone II. When PCI is connected, Nios doesn't load any software, but works good without PCI. I've made PCI in reset, without clk - doesn't h...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

by the way ,I find my pci t32 ip can not support brust transaction, PC read some words from sdram which connect to the pci ip , in SignalTap I find the PC read word one by one . that is so slowly.

at last I find "Reads originated from an x86 (Intel) architecture CPU destined to a PCI slav

e device (such as PLX 9050) will never be bursted. This is a x86 IA32 limita

tion."

this is the addr of this words http://learn.tsinghua.edu.cn:8080/20...-4100/1368.htm (http://learn.tsinghua.edu.cn:8080/2004210935/bm/csarch2000-4100/1368.htm)

I do not known whether your pci t32 has this condition or not.