2023-03-22 09:23 AM
I am using DP83848 PHY RMII interface and 50MHz external oscillator and PA1 as ETH_RMII_REF_CLCK pin. I ignored 125MHz input pin.
But when active ethernet, I see a problem similar to Stm32mp157 Ethernet problem, saying that there is no input clock.
I check my pin and 50MHZ clock on scope, it is fine. When I read datasheet, the clock has to be 25MHz or 125MHz? and has to connect to 125MHz input clock pin?
2023-03-22 10:04 AM
I see 50MHz should be fine.