Hi,
I made a custom ESP32 board with an lan8720 controller to provide ethernet. Using the wifi/lan8720 example in arduino I am able to see if a device is connected but can't communicate with the router.
On closer inspection it seems I messed up and wired the TXD0 pin on the lan8720 to the TXD1 on the ESP32, and similarly the TXD1 goes to the TXD0. Urgh.
Is there a way to reassign the TXD0 and TXD1 pins on the ESP32 ? from what I am finding it seems these are part of the RMII bus which is fixed...
RMII pins on a custom board
-
- Posts: 290
- Joined: Wed Sep 05, 2018 6:23 am
Re: RMII pins on a custom board
Correct, you can't switch the pin without hack your board. RMII signals are all routed by IO MUX, not IO Matrix.
Who is online
Users browsing this forum: No registered users and 97 guests