My customer has a problem with 1Gb PHY DP83867 - issue with packet loss.
System architecture is following:
1Gb switch connects up to 50 measuring devices, that send in real-time 200-byte packets, and the controller.
There is a DP83867 PHY and a Freescale ls1021 processor on a controller. The switch synchronously receives Ethernet packets which are transmitted to the controller for processing. The traffic is about 50 Mbps, IPG - 96ns.
Controller receives damaged packets with fcs error in SGMII or RGMII mode 3-5 times in 2 sec. Traffic is continuous at the same frequency.
For the diagnosis, the following experiments were carried out:
- other devices were taken instead of our controller. No packet loss.
- put an external switch between the switch and the controller. No packet loss.
Could you please help with identifying the problem?
Thank you
