2020-05-05 06:41 AM
I use ethernet switch instead of PHY with stm32f4. While RMII pins are connected to STM32, I manage MDIO pins with SPI.There is basic things whic is I can not understand.What is the difference between the autonegation,speed settings in STM32 ethernet driver configuration and switch autonegation,speed configuration?
Solved! Go to Solution.
2020-05-05 10:35 AM
Depends on the switch.
If it is like Micrel /Microchip KS: STM32 connects to its internal port which has fixed parameters, so don't autonegotiate, just match these parameters.
Enable autonegotiation on external ports of the switch, if desired.
-- pa
2020-05-05 10:35 AM
Depends on the switch.
If it is like Micrel /Microchip KS: STM32 connects to its internal port which has fixed parameters, so don't autonegotiate, just match these parameters.
Enable autonegotiation on external ports of the switch, if desired.
-- pa