Hi Got the RJ45 cable this week and just want to make sure i connect it the right way. It looks like the connectors of socket are on the border side of each board so i put the blue part of cable to towards the center of board. Is this correct?
Regards Frank
I’ve also used this connector, and it was indeed connected according to your diagram.
Thank you for response @hyf can you tell me if the leds can be driven over the fpc cable? I have prepared my code to map the orange led like for lan5 and try it soon as now i know that my hardware connection itself is correct.
No additional driver is needed; this port is an internal switch in the MT7988 and has no external PHY.
It is clear that it is port3 from internal switch,but not sure if led pins are exposed over the cable too.
edit: tested it and it is working including orange/yellow led in my 7.2-rc tree
root@bpi-r4:~# ip a a 192.168.0.19/24 dev lan-fpc
root@bpi-r4:~# ip link set lan-fpc up
[ 107.154614] mt7530-mmio 15020000.switch lan-fpc: configuring for phy/internal link mode
root@bpi-r4:~# [ 107.164325] mt7530-mmio 15020000.switch lan-fpc: Link is Up - 1Gbps/Full - flow control rx/tx
root@bpi-r4:~# ping 192.168.0.21
PING 192.168.0.21 (192.168.0.21) 56(84) bytes of data.
64 bytes from 192.168.0.21: icmp_seq=1 ttl=64 time=0.367 ms
64 bytes from 192.168.0.21: icmp_seq=2 ttl=64 time=0.392 ms
64 bytes from 192.168.0.21: icmp_seq=3 ttl=64 time=0.393 ms
--- 192.168.0.21 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2113ms
rtt min/avg/max/mdev = 0.367/0.384/0.393/0.012 ms