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espressif / esp-idf

Espressif IoT Development Framework. Official development framework for Espressif SoCs.
Apache License 2.0
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ESP32 ETHERNET PHY Reset Timeout, init mac failed Error (IDFGH-2141) #4298

Closed aiden-kim-j closed 4 years ago

aiden-kim-j commented 4 years ago

Hello. I have made a PCB based on the circuit diagram shown in ESP32-ETHERNET-KIT V1.0 developed by your company and I am in the middle of TEST. But there's a problem working on it. image

I think the problem is that the ESP32-WROVER-B product does not come with the GPIO0 signal, the 50Mhz frequency. I've tried TEST with 25Mhz CRYSTAL on the outside, but so is this. Can you help me?

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suda-morris commented 4 years ago

If you have referenced our official board design, obviously, your GPIO0 didn't get the RMII clock(50MHz) from outside. So the mac can't be initialized successfully. You can post your hardware problem in the forum to get more help from community.

Alvin1Zhang commented 4 years ago

@aiden-kim-j Thanks for reporting.