Part Number: EVMK2H
I have a EVMK2H board with last (4) revision. I'm use last SDK 06.01.00.08.
I have two problems:
1) I have a MDIO issue (Ethernet link down intermittenly). I this forum this question was sended some time, for example https://e2e.ti.com/support/processors/f/791/t/574040?EVMK2H-Ethernet-link-down-intermittently.
Solution for it (changing of dts file for disabling PHY MDIO) is not working. I saw problem like this https://e2e.ti.com/support/processors/f/791/t/720199?Linux-EVMK2H-Ethernet-link-down-intermittently and output message after booting like this "cpts: unable to obtain a time stamp" (indefinite repeat).
How I can solve this hardware problem?
2) when I use UDP transfer (PC is transmitter, EVMK2H is receiver), and transfer rate about 400Mbit/s, I have a significant lost packets. My problem is like https://e2e.ti.com/support/processors/f/791/t/451659?K2HK-UDP-packet-loss-issue . But increasing of rx-queue-depth and rx-buffer-size is not works. I have drops using when I run iperf test or when I run my custom application.
How I can increase perfomans of UDP transaction?