Questions tagged [lan8720]

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LAN8720A - Reset and Power-up Issues

I am developing a new board that uses an STM32F427 MCU and the LAN8720A as an ethernet PHY. This is my first design with this MCU, but I've done multiple designs with this PHY and other MCUs. I never ...
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Inverting REFCLOCK of Ethernet PHY

A few years ago I had to design a board that uses the NXP LPC1769 MCU and had Ethernet connectivity. I was in need of a PHY chip and the LAN8720 was choosen. During design however, I noticed that NXP ...
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STM32F407 + LAN8720A + lwIP + FreeRTOS = No received Ethernet frames

I'm trying to bring up a PCB that uses an STM32F407 and LAN8720A Ethernet PHY, and I can't seem to receive any Ethernet frames — even though I have no problem transmitting frames. Hardware setup I ...