Emac rx buff err in ETH example

[gjongenelen]

Emac rx buff err in ETH example

[jovermann]

I see the same issue with the Olimex ETH_PHY_demo (also using a Rev C board). I can also confirm that the workaround pointed to by the link above works.

Concretely, the workaround is:

1. Use the ethernet example provided with the esp-idf. Do not use the ETH_PHY_demo at all.
2. Use these settings in make menuconfig (under "Example Configuration"):
   CONFIG_PHY_TLK110=
   CONFIG_PHY_LAN8720=y
   CONFIG_PHY_ADDRESS=0
   CONFIG_PHY_CLOCK_GPIO0_IN=y
   CONFIG_PHY_CLOCK_GPIO0_OUT=
   CONFIG_PHY_CLOCK_GPIO16_OUT=
   CONFIG_PHY_CLOCK_GPIO17_OUT=
   CONFIG_PHY_CLOCK_MODE=0
   CONFIG_PHY_USE_POWER_PIN=
   CONFIG_PHY_SMI_MDC_PIN=23
   CONFIG_PHY_SMI_MDIO_PIN=18

[DanKoloff]

The software example was written for older version of ESP-IDF, it needs to be updated, for now follow the advice I posted here until we fix it: OLIMEX/ESP32-GATEWAY#3

[gjongenelen]

Thanks, it works

[DanKoloff]

The examples had been updated and should work properly with the latest ESP-IDF.