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DM9051 connection issue custom board

Posted: Mon Aug 17, 2020 7:22 am
by westlund
Hi,

I made a custom board with DM9051 connected to ESP32, see attached schematic.

I can run the basic eth example code for esp idf.

But when I connect a cable between the board and my laptop and restart the board I get connected and then directly disconnected:

Serial monitor output:
*Ethernet Connected (Yellow light and green blinking on the port on the DM9051 side)
*Your Mac address: XXXXXXXX (2 seconds after connected)
*Ethernet disconnected (2-5 seconds after Mac address)

Anyone that can point me in the right direction to find the problem?

Re: DM9051 connection issue custom board

Posted: Thu Jan 07, 2021 10:20 pm
by markus.fischbacher
Have you been able to fix that problem?
Thinking about also using the DM9051 instead of a LAN8742 to safe GPIOs.

Regards,
Markus