libstock ETHERNET Library - RMII Alternate / Default signals

[phil31]

Dear all,

i plan to use the libstock Ethernet library with the LAN8720A PHY and PIC32MX664F128H.

there is 2 mode available for the RMII interface : Default or Alternate interface signals.

- Need i only select the right values in the FETHIO bit of DEVCFG3 register ?
- either interface signals works witht the ME library ?
- no advantage / disadantage to use standard or alternate interface ?

thanks for any advice, regards
Phil

[darko.minic]

Hi Phil,

1. You should set right value of FETHIO bit, and change configuration bits in InitPHYPins() sub procedure.
You can set FETHIO bit in project settings (Ethernet I/O pin select), disabled is 0, enabled is 1.
2. Either interface signals should work with our library.
3. There is no advantages or disadvantages of using default or alternate interface signals.
With our MCU card we use alternate interface signals.

Regards,
Darko