ESP32C3 with W5500 in V1.25.0, driver is ok but not connected #17299

kenjican · 2025-05-14T02:37:21Z

kenjican
May 14, 2025

W5500 with ESP32C3 is initialized successfully, but not connected.

code as below:

from machine import Pin, SPI, reset
import network,json
spi = SPI(1,500000)
sta_if = network.LAN(phy_type=network.PHY_W5500,phy_addr =0,cs=Pin(1),spi=spi,int = Pin(0))
sta_if.active(1)
sta_if.ifconfig(["192.168.98.87","255.255.255.0","192.168.98.1","192.168.98.1"])

test
1: sta_if.status() is 5, means "GOT IP" ,
2: sta_if.isconnected() return True.
3:sta_if.config('mac') got b'\xd8;\xda\x12\x90o'
As seen, W5500 should be drived ok.
BUT, ping no response. Anyone has the solution?

Answered by shariltumin

Jun 5, 2025

Why do you need to set addresses specifically in your sta_if.ifconfig()? Why not let your router set these values automatically?

I am running MicroPython v1.26.0-preview.82.gae6062a45 on ESP32-C3 and here is my run log:

>>> from machine import Pin, SPI
>>> import network
>>> spi = SPI(1,500000)
>>> sta_if = network.LAN(phy_type=network.PHY_W5500,phy_addr =0,cs=Pin(1),spi=spi,int = Pin(0))
>>> sta_if.active(1)
True
>>> sta_if.ifconfig()
('192.168.5.8', '255.255.252.0', '192.168.4.1', '192.168.4.1')
>>> sta_if.status()
5
>>> sta_if.isconnected()
True
>>> sta_if.config('mac')
b'`U\xf9t<\x0f'

Ping from Linux PC:

$ ping 192.168.5.8
PING 192.168.5.8 (192.168.5.8) 56(84) bytes of data.
64 bytes…

View full answer

liudr · 2025-05-24T17:10:49Z

liudr
May 24, 2025

I am using phys_addr=1 even thought I can't recall the reason. What is the IP address of the computer you're using to ping your W5500? Are you connecting everything with a home wifi router? Are you sure the router permits traffic between ethernet ports and your computer that might be on WiFi. You can put a second computer on ethernet and ping the second computer with the first computer. If you get ping, then you CAN ping an ethernet port device with a wifi. Otherwise you can't. Also, you didn't set mac address before activating your W5500. I don't believe W5500 has an assigned MAC address. You need to derive one from your ESP32C3. On traditional ESP32, it is base address +3 (base address is for wifi).

0 replies

kenjican · 2025-06-05T05:52:32Z

kenjican
Jun 5, 2025
Author

Thaks for the reply. I've tried ,but not working.
1: phy_addr = 1
2: I am sure the local network is fine
3: v1.25.0 do have mac .but not v1.22.0, the mac of v1.22.0 is b'\x00x00x00x00x00x00' ,mac is unique_id + 3

any successful example could offer?

0 replies

shariltumin · 2025-06-05T11:56:35Z

shariltumin
Jun 5, 2025

Why do you need to set addresses specifically in your sta_if.ifconfig()? Why not let your router set these values automatically?

I am running MicroPython v1.26.0-preview.82.gae6062a45 on ESP32-C3 and here is my run log:

>>> from machine import Pin, SPI
>>> import network
>>> spi = SPI(1,500000)
>>> sta_if = network.LAN(phy_type=network.PHY_W5500,phy_addr =0,cs=Pin(1),spi=spi,int = Pin(0))
>>> sta_if.active(1)
True
>>> sta_if.ifconfig()
('192.168.5.8', '255.255.252.0', '192.168.4.1', '192.168.4.1')
>>> sta_if.status()
5
>>> sta_if.isconnected()
True
>>> sta_if.config('mac')
b'`U\xf9t<\x0f'

Ping from Linux PC:

$ ping 192.168.5.8
PING 192.168.5.8 (192.168.5.8) 56(84) bytes of data.
64 bytes from 192.168.5.8: icmp_seq=1 ttl=64 time=1668 ms
64 bytes from 192.168.5.8: icmp_seq=2 ttl=64 time=636 ms
64 bytes from 192.168.5.8: icmp_seq=3 ttl=64 time=636 ms
64 bytes from 192.168.5.8: icmp_seq=4 ttl=64 time=635 ms
64 bytes from 192.168.5.8: icmp_seq=5 ttl=64 time=635 ms
64 bytes from 192.168.5.8: icmp_seq=6 ttl=64 time=635 ms
64 bytes from 192.168.5.8: icmp_seq=7 ttl=64 time=636 ms
64 bytes from 192.168.5.8: icmp_seq=8 ttl=64 time=636 ms
^C
--- 192.168.5.8 ping statistics ---
9 packets transmitted, 8 received, 11,1111% packet loss, time 8032ms
rtt min/avg/max/mdev = 635.461/764.601/1667.544/341.280 ms, pipe 2

Now with the LAN disabled

>>> sta_if.active(0)
I (978385) ethernet: Ethernet Link Down
I (978386) ethernet: Ethernet Stopped
False
>>> sta_if.ifconfig()
('0.0.0.0', '0.0.0.0', '0.0.0.0', '192.168.4.1')

As expected, there will be no response to the ping:

$ ping 192.168.5.8
PING 192.168.5.8 (192.168.5.8) 56(84) bytes of data.
From 192.168.4.27 icmp_seq=1 Destination Host Unreachable
From 192.168.4.27 icmp_seq=2 Destination Host Unreachable
From 192.168.4.27 icmp_seq=3 Destination Host Unreachable
^C
--- 192.168.5.8 ping statistics ---
5 packets transmitted, 0 received, +3 errors, 100% packet loss, time 4080ms

If you need to set the address manually, first verify that the IP address is not already in use by another device. Then, ensure that you are using the correct netmask value.

1 reply

kenjican Jun 17, 2025
Author

@shariltumin Thank you,,I tried v1.26.0-preview.251.g5ade8b705, and DHCP. it works~~
And I will test v.1.25 , manually set ip , gatewat etc..latter

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