01-02-2019, 06:34 PM
Hello, this is my first message on this board.
I have a Rock64 4G board, to which I'd like to add the needed electronic for the second Ethernet port. I've followed this thread and read somewhere else about the MagJack. I ended up buying one from SparkFun, but I have still some doubts about the proper way to hook it up to the P5 pins. For instance:
What are you referring to when talking about terminating resistor? Can you please elaborate on the electric schema which works for you? I understand that there is no standard for the MaJack's pinout (each vendor has its own), have you added caps and resistors in between?
Also, I'd like to know if someone which succeeded into having the second Ethernet working have managed to drive the MagJack LEDs, at least the green on which may be useful to indicate that the link is active. Is there the relevant support code in the Ayufan kernel to drive the LEDs with P5 pins 21 and 22?
Thanks.
I have a Rock64 4G board, to which I'd like to add the needed electronic for the second Ethernet port. I've followed this thread and read somewhere else about the MagJack. I ended up buying one from SparkFun, but I have still some doubts about the proper way to hook it up to the P5 pins. For instance:
(07-27-2018, 11:41 AM)t4_4t Wrote: http://files.pine64.org/doc/rock64/ROCK6..._Board.pdf
If someone created it according to the circuit diagram above and it worked, please report it.
Initially, this circuit diagram itself would be wrong.
Because, it became to work after adding a terminating resistor.
What are you referring to when talking about terminating resistor? Can you please elaborate on the electric schema which works for you? I understand that there is no standard for the MaJack's pinout (each vendor has its own), have you added caps and resistors in between?
Also, I'd like to know if someone which succeeded into having the second Ethernet working have managed to drive the MagJack LEDs, at least the green on which may be useful to indicate that the link is active. Is there the relevant support code in the Ayufan kernel to drive the LEDs with P5 pins 21 and 22?
Thanks.
