4 years, 3 months ago.

LAN8720 on LPC4078


I created a design with an ethernet phy (LAN7820) and the LPC4078. The schematics are based on the LPC4088 development board. My code runs fine on the development board, but it fails to connect on my custom hardware.

The switch indicates 'Link', also LED1 lights up, indicating 'Link'. eth.connect() fails.

Do I have to make changes in the software to make the ethernet work?

I checked my design with this document http://ww1.microchip.com/downloads/en/DeviceDoc/LAN8720A%20QFN%20Rev%20D%20Schematic%20Checklist.pdf

I checked the hardware over and over again but still can't find any issues, ethernet just won't connect

Regards Robin

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