Forum Discussion

Honored Contributor

12 years ago

Intermittent PCIE LTSSM stuck at Detect Quiet

Hi I had an intermittent issue during power-up or reset. Sometimes it works and the ltssm state is at L0. sometimes it is not working and the ltssm state is stuck at Detect.quiet. Anyone e...

Altera_Forum

Honored Contributor

12 years ago

Please see http://www.altera.com/literature/ug/ug_s5_pcie.pdf#page=316

If you are stuck in detect.quiet it sounds like you might not be exiting reset correctly. Check the signal voltage levels into the FPGA conform to PCIe 3.3V spec.

Forum Discussion

Intermittent PCIE LTSSM stuck at Detect Quiet

Recent Discussions

Can't generate F-Tile Ethernet Hard IP Design Example

MAX10 TSE reference design

Accessing registers in the PCIE IP beyond MCDMA using system console

Constraints not being picked for DCFIFO

Cyclone IV GX project failed migration from 20.1 to 23.1std