05993b5090
Add a dedicated sublayer example under examples/ethernet and enable sublayer usage in the PTP example.
1.7 KiB
| Supported Targets | ESP32 | ESP32-P4 | ESP32-S31 |
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Ethernet Sublayer Example
Demonstrates the experimental Ethernet netif sublayer (esp_eth_sublayer): one physical Ethernet driver shared by an untagged esp_netif (DHCP) and a tagged 802.1Q VLAN esp_netif (static IP).
Uses the ethernet_init component for driver setup.
How to use example
Configure the project
idf.py menuconfig
See common configurations for Ethernet examples from upper level.
This example requires enabling CONFIG_IDF_EXPERIMENTAL_FEATURES and CONFIG_ETH_SUBLAYER_SUPPORT.
Build, Flash, and Run
Build the project and flash it to the board, then run monitor tool to view serial output:
idf.py -p PORT build flash monitor
(Replace PORT with the name of the serial port to use.)
(To exit the serial monitor, type Ctrl-].)
Setup VLAN interface on Linux
Create a tagged 802.1Q interface on the host so you can reach the ESP VLAN netif (defaults: VID 20, IP 192.168.20.10):
# Replace eth0 with your host Ethernet interface (e.g. enp3s0)
sudo ip link add link eth0 name eth0.20 type vlan id 20
sudo ip addr add 192.168.20.1/24 dev eth0.20
sudo ip link set eth0.20 up
ping 192.168.20.10
To remove it later:
sudo ip link delete eth0.20
Match id / address to Example Configuration if you changed the defaults. The physical link between the host and the board must carry tagged frames (direct cable, or a switch port in trunk/hybrid mode).
See upper-level Ethernet README for hardware notes and common troubleshooting.