Port, board and/or hardware

stm32 on Portenta H7 + Vision Shield ETH

MicroPython version

MicroPython v1.23.0 on 2024-06-02; Arduino Portenta H7 with STM32H747

Reproduction

import network
import socket
import pyb

# Initialize the LAN interface with PHY parameters
lan = network.LAN()

lan.config(trace=8, low_power=False)
lan.ifconfig('dhcp')

# Activate the LAN interface
lan.active(True)

print("MAC Address:", lan.config("mac").hex())

# Wait until the link is up
while not lan.isconnected():
    pass

print("Network configuration:", lan.ifconfig())

# Get the IP address of www.google.com
try:
    ip_address = socket.getaddrinfo('www.google.com', 80)[0][-1][0]
    print("IP address of www.google.com:", ip_address)
except Exception as e:
    print("Error:", e)

Expected behaviour

We should get the DHCP IP address.

Observed behaviour

15:27:36.010 -> Traceback (most recent call last):
15:27:36.010 ->   File "main.py", line 9, in <module>
15:27:36.010 -> OSError: timeout waiting for DHCP to get IP address
15:27:37.495 -> MicroPython v1.23.0 on 2024-06-02; Arduino Portenta H7 with STM32H747
15:27:37.529 -> Type "help()" for more information.
15:27:37.529 -> >>> 

Additional Information

I actually tried with setting a static IP instead, like this:

lan.ifconfig(('192.168.10.231', '255.255.255.0', '192.168.10.1', '8.8.8.8'))

And somehow it gets the DHCP lease successfully, but not using the specified IP.

It also works if I just call: lan.ifconfig()

but it does not work with: lan.ifconfig('dhcp')

15:39:14.146 ->   File "main.py", line 8, in <module>
15:39:14.204 -> OSError: timeout waiting for DHCP to get IP address

In OpenMV v4.5.9 this trick does not work, I could not use network.LAN there at all. CC @kwagyeman, not sure what is different, since the MP version is the same 🙁

Can it be because of the MAC address? I see a generic one being assigned (02:37:47:12:32:bb).

This should be in another issue, but it would be nice to be able to set the MAC address:

mac_bytes = b'\xA8\x61\x0A\xAE\x44\xE0'
network.LAN.config(trace=8, low_power=False, mac=mac_bytes)

Code of Conduct

Yes, I agree