WIZnet W6100-EVB-Pico2 board support

[realdelik]

Describe your request

The current version of ESPHome supports RP2350 and w6100. I haven't been able to create a configuration that works with W6100-EVB-Pico2 board - the code seems to run, but it won't connect to the network.

Why the uncertainty?

No response

Use cases

The WIZnet W6100-EVB-Pico2 board could be used for ESPHome

What areas might this affect?

No response

Anything else?

No response

[bogdanr]

W6100 on RP2350 is supported. Your problem is in the configuration, not in missing support.

Use the pinout from ESPHome's own test config (tests/components/ethernet/common-w6100-rp2040.yaml):

rp2040:
  board: rpipico2

ethernet:
  type: W6100
  clk_pin: 18
  mosi_pin: 19
  miso_pin: 16
  cs_pin: 17
  interrupt_pin: 21
  reset_pin: 20

There is no wiznet_6100_evb_pico2 board definition, neither in ESPHome nor in arduino-pico. Only the 5100S, 5500 and 6300 boards exist. Use board: rpipico2.

Then read the log. Two different failures look the same from outside:

• Failed to initialize Ethernet — begin() failed. Your SPI pins or your CS pin are wrong.
• No error, but the link stays down — the chip answers, but the PHY does not start.

For the second failure, remove reset_pin and power-cycle the board. RESET_DELAY_MS is 10 ms for the W6100, but the related W6300 gets 100 ms (ethernet_component.h:288-294). 10 ms can be too short.

Please add your YAML and the ethernet: lines from the log.

[realdelik]

Thank you for your response. When I remove reset_pin it starts working ...