Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Arria GX + PCI express IP card powers down the PC, instead of just restarting.

Hi, I'm using Quartus-II 8.0 sp1 and PCI express soft IP core on Arria GX device. Card sits on a x4 slot of an Intel quad-core motherboard running Windows XP. I have a custom driver which com...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi Kevin,

Those are good points. Checked the reset pin and impedance matching issues you mentioned and found them to be conforming. Our vendor also verified impedance characteristics of PCIe traces.

The issue happens randomly. Sometimes after adding a node to the SignalTap-II and sometimes after adding a seemingly innocuous line of verilog code (like an assignment) to a state-machine of a custom Avalon module.

I don't know if moving to Quartus 9.0 (we're on 8.0 sp1) would resolve the issue; but that is one option we are considering.

regards,

-swguy