Forum Discussion

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

Can someone give a hint of what the problem is? (CycloneIV, PCIe, GigE MAC)

I'm trying to implement GigE and PCIe protocol on CycloneIV starter board. I presume that I'm allowed to use one channel of GXB for PCIe and the other for GigEMAC. The fitter gives me these fol...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Yep, got both examples working separately, and even got a from scratch project working with GigE built from megawizard. The problem only seems to be trying both at the same time. I do use both refclks as you described. I'm suspicious of some issue related to transceivers sharing a quad block, perhaps I need to do some special reconfig magic to make them work together? Not really sure. Been banging my head on the wall for a while now with this.