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Shark121's avatar
Shark121
Icon for New Contributor rankNew Contributor
4 years ago

Downloading Error when both 3V I/O & tranceivers are used in a project

Hello, I use a Avst-PCIe IP in my project, which has a 3V I/O pin for reset, and tranceivers's pin assignments for tx/rx channels. After compilation, I downloaded the .sof file into device use Qua...
JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
4 years ago

Hi,


Have you try other simple design? May I know if your refclk is running?


Shark121's avatar
Shark121
Icon for New Contributor rankNew Contributor
4 years ago

Hi:

Yes, the refclk is running. I make a mini-system design to download, it works.

This design only include three IPs(release_reset, clock, PLL), and some very simple logics(a counter connecting to a GPIO to drive a LED, to make a breathing lamp). This design can be downloaded and worked correctly.

I also make a design with instantiation of xcvr & 3V I/O seperately, with the same constrains of PCIe mentioned above, this design can also be downloaded, so it looks like only when the tranceiver & 3V I/O have internal relationshaips with each other, can trigger this problem.