Hi ocpseq,

yes, it's possible for your particular use case. It's true that `esp_netif_deinit` is still not supported but you don't need to de-initialize the "netif" since you are going to use it for the WiFi interface. You just need to destroy Ethernet related "netif" instance.

For full Ethernet ...

The datasheet says "Communication with an external Fast Ethernet PHY through IEEE 802.3-compliant MII and RMII interfaces". The EMAC supports MII and RMII - two interface options are listed hence plural in "interfaces". Just to note that either MII or RMII can be used at a time.

If you don't need to manage the switch, try the approach demonstrated at https://github.com/espressif/esp-eth-dr ... ric_switch

Hi,

just a quick answer to your question:

1) Espressif has always used IP101 in its Ethernet devboards - https://docs.espressif.com/projects/esp-dev-kits/en/latest/esp32/esp32-ethernet-kit/user_guide.html#get-started-esp32-ethernet-kit-v1-2

2) LAN8720 always outputs REF RMII CLK at its output ...

W5500 does not have MAC address burned. You need to set it manually:
https://github.com/espressif/esp-idf/blob/master/examples/ethernet/basic/components/ethernet_init/ethernet_init.c#L271
https://github.com/espressif/esp-idf/blob/master/examples/ethernet/basic/components/ethernet_init/ethernet_init ...

Check the Note 5-7 in LAN8720 datasheet. It seems the chip itself consumes less power in 10BASE-T mode. However, the overall power consumption of Ethernet component is higher due to different signal encoding in comparison to 100BASE-TX.

The workaround are the lines of code I've already shared

Could be effect of LAN8720 errata, please see https://github.com/espressif/esp-idf/bl ... #L167-L182

With newer versions of iperf (not publicly available yet), and with suppressed log of "insufficient buffer size" error (now it's at debug level) we can get close to 95 Mbps which is theoretical maximum when we subtract all the Ethernet frame and IP packet overhead.

I'm also in process of extension ...

User "nopnop2002" suggests to use Ethernet driver reset pin configuration, see https://github.com/espressif/esp-idf/issues/15004 It's little bit hacky but should do the job.

Clearer approach is presented at https://github.com/espressif/esp-eth-drivers/blob/master/ksz8863/examples/simple_switch ...