Forum Discussion

Dzar's avatar
Dzar
Icon for Occasional Contributor rankOccasional Contributor
7 years ago

How to configure/access Cyclone V HPS EMAC counters.

I have a Cyclone V system where I use both EMAC0 and EMAC1 on the HPS. To test, my system is set up as a wire, essentially. Every packet that comes into EMAC0 is copied to EMAC1. Using wireshark I ca...
Dzar's avatar
Dzar
Icon for Occasional Contributor rankOccasional Contributor
7 years ago

I've perused the drivers and I believe I'm doing what they to to initialize the EMAC (and remember, I initialize EMAC0 and 1 the same). I think it could be that the Linux system is not using the mac counters, but using another method to "fake" the counters. I will dig into this, but it seems to me there should be an admission that EMAC0 counters are broken and there is no way to make them work, or there should be a published example that shows the counters working so I can duplicate that.

The counters are necessary to count errors. If I count frames, myself, I'll never see the errors which is what I really want to know.

Thanks,

Dave