Portenta H7 Ethernet does not connect

@kwagyeman

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

@razvanphp

@razvanphp - I can confirm that the latest firmware doesn't work. This is a regression as this worked previously.

Can you let Arduino know about the issue and they will assign us to fix it.

@iabdalkader - For visibility.

Thanks for the quick answer!

Can you let Arduino know about the issue and they will assign us to fix it.

Not sure how/where can I do that.

How else can I help? In which source-code is the most probable place to fix this?

Start a thread on their forum:

https://forum.arduino.cc/c/hardware/portenta/pro-family/168

Or email their help support.

The issue is likely something buried in MicroPython as the Ethernet is completely controlled by that.

@razvanphp

@razvanphp - I can confirm that the latest firmware doesn't work. This is a regression as this worked previously.

Not sure if this ever worked, I tried all those firmwares for H7 and all of them fail in the same way:

ARDUINO_PORTENTA_H7-20220618-v1.19.1.dfu
ARDUINO_PORTENTA_H7-20230426-v1.20.0.dfu
ARDUINO_PORTENTA_H7-20231005-v1.21.0.dfu
ARDUINO_PORTENTA_H7-20240222-v1.22.2.dfu
ARDUINO_PORTENTA_H7-20240602-v1.23.0.dfu
ARDUINO_PORTENTA_H7-20240918-v1.24.0-preview.315.g8feb714b4.dfu

It's not possible to set a static IP (it gets dhcp instead) and when trying dhcp string as parameter, it throws the timeout error. If you point me into the right file, maybe I can figure it out myself and contribute this back, we are really blocked by this, should it be somewhere here?

micropython/extmod/network_lwip.c

Lines 79 to 84 in 3ca01ec

    
           while (!dhcp_supplied_address(netif)) { 
        
               if (mp_hal_ticks_ms() - start > 10000) { 
        
                   mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("timeout waiting for DHCP to get IP address")); 
        
               } 
        
               mp_hal_delay_ms(100); 
        
           }

BTW, I also tried with:

lan.ipconfig(dhcp4=False, addr4=('192.168.10.133', '255.255.255.0'))

but still the same behaviour...

I noticed that ifconfig is deprecated in favour of ipconfig, but those two documentations are not in sync:

@razvanphp

@razvanphp - Yeah, it did previously work. Have you reported the issue to Arduino yet? We have a support contract with them to work on this. Once they assign us the work, we can fix it.

Note, we support the Nicla through our firmware. You should be pulling it from here: https://github.com/openmv/openmv/releases

Try firmware v4.5.2 and older: https://github.com/openmv/openmv/releases/tag/v4.5.2

MicroPython typically gets fixes our firmware receives afterwards as things can take a while to merge upstream.

Have you reported the issue to Arduino yet? We have a support contract with them to work on this. Once they assign us the work, we can fix it.

Yes, on the forum here and also through contact-us form (request ID is: 304917).

Tried also another older version of OpenMV, same thing:

OpenMV v4.5.2; MicroPython v1.20-omv-r22; PORTENTA-STM32H747
Type "help()" for more information.
>>> 
raw REPL; CTRL-B to exit
>OKTraceback (most recent call last):
  File "<stdin>", line 9, in <module>
OSError: timeout waiting for DHCP to get IP address
>

OpenMV v4.5.1; MicroPython v1.20-omv-r17; PORTENTA-STM32H747
Type "help()" for more information.
>>> 
raw REPL; CTRL-B to exit
>OKTraceback (most recent call last):
  File "<stdin>", line 9, in <module>
OSError: timeout waiting for DHCP to get IP address
>

the difference is that now, OpenMV behaves like vanilla micropython, in the sense that it works with (only) DHCP, if passing nothing to lan.ifconfig(), but when passing a tuple for a static IP, it still gets DHCP, so I think this is a bug upstream anyway.

Ah, I never checked this with non dhcp. Yes, probably a big upstream. We don't touch the Ethernet code on the OpenMV Cam.

Ok, mistery solved!

It seems that the order of lan.active(True) and lan.ifconfig([tuple]) matters, in the sense that calling active resets the interface to DHCP:

micropython/ports/stm32/network_lan.c

Lines 73 to 90 in 17d8234

    
           static mp_obj_t network_lan_active(size_t n_args, const mp_obj_t *args) { 
        
               network_lan_obj_t *self = MP_OBJ_TO_PTR(args[0]); 
        
               if (n_args == 1) { 
        
                   return mp_obj_new_bool(eth_link_status(self->eth)); 
        
               } else { 
        
                   int ret; 
        
                   if (mp_obj_is_true(args[1])) { 
        
                       ret = eth_start(self->eth); 
        
                   } else { 
        
                       ret = eth_stop(self->eth); 
        
                   } 
        
                   if (ret < 0) { 
        
                       mp_raise_OSError(-ret); 
        
                   } 
        
                   return mp_const_none; 
        
               } 
        
           } 
        
           static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_lan_active_obj, 1, 2, network_lan_active);

micropython/ports/stm32/eth.c

Lines 852 to 864 in 17d8234

    
           int eth_start(eth_t *self) { 
        
               eth_lwip_deinit(self); 
        
               // Make sure Eth is Not in low power mode. 
        
               eth_low_power_mode(self, false); 
        
               int ret = eth_mac_init(self); 
        
               if (ret < 0) { 
        
                   return ret; 
        
               } 
        
               eth_lwip_init(self); 
        
               return 0; 
        
           }

micropython/ports/stm32/eth.c

Lines 777 to 801 in 17d8234

    
           static void eth_lwip_init(eth_t *self) { 
        
               ip_addr_t ipconfig[4]; 
        
               IP4_ADDR(&ipconfig[0], 0, 0, 0, 0); 
        
               IP4_ADDR(&ipconfig[2], 192, 168, 0, 1); 
        
               IP4_ADDR(&ipconfig[1], 255, 255, 255, 0); 
        
               IP4_ADDR(&ipconfig[3], 8, 8, 8, 8); 
        
               MICROPY_PY_LWIP_ENTER 
        
               struct netif *n = &self->netif; 
        
               n->name[0] = 'e'; 
        
               n->name[1] = '0'; 
        
               netif_add(n, &ipconfig[0], &ipconfig[1], &ipconfig[2], self, eth_netif_init, ethernet_input); 
        
               netif_set_hostname(n, mod_network_hostname_data); 
        
               netif_set_default(n); 
        
               netif_set_up(n); 
        
               dns_setserver(0, &ipconfig[3]); 
        
               dhcp_set_struct(n, &self->dhcp_struct); 
        
               dhcp_start(n); 
        
               netif_set_link_up(n); 
        
               MICROPY_PY_LWIP_EXIT 
        
           }

Not sure if adding this to documentation would be beneficial, but this was a waste of time for everybody, I'm sorry for that!

@razvanphp

@razvanphp - Thanks for debugging this. You should send a documentation update to MicroPython about this for their Ethernet module: https://github.com/micropython/micropython/blob/master/docs/library/network.LAN.rst

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Portenta H7 Ethernet does not connect #15877

Port, board and/or hardware

MicroPython version

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	while (!dhcp_supplied_address(netif)) {
	if (mp_hal_ticks_ms() - start > 10000) {
	mp_raise_msg(&mp_type_OSError, MP_ERROR_TEXT("timeout waiting for DHCP to get IP address"));
	}
	mp_hal_delay_ms(100);
	}

	static mp_obj_t network_lan_active(size_t n_args, const mp_obj_t *args) {
	network_lan_obj_t *self = MP_OBJ_TO_PTR(args[0]);
	if (n_args == 1) {
	return mp_obj_new_bool(eth_link_status(self->eth));
	} else {
	int ret;
	if (mp_obj_is_true(args[1])) {
	ret = eth_start(self->eth);
	} else {
	ret = eth_stop(self->eth);
	}
	if (ret < 0) {
	mp_raise_OSError(-ret);
	}
	return mp_const_none;
	}
	}
	static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(network_lan_active_obj, 1, 2, network_lan_active);

	int eth_start(eth_t *self) {
	eth_lwip_deinit(self);

	// Make sure Eth is Not in low power mode.
	eth_low_power_mode(self, false);

	int ret = eth_mac_init(self);
	if (ret < 0) {
	return ret;
	}
	eth_lwip_init(self);
	return 0;
	}

	static void eth_lwip_init(eth_t *self) {
	ip_addr_t ipconfig[4];
	IP4_ADDR(&ipconfig[0], 0, 0, 0, 0);
	IP4_ADDR(&ipconfig[2], 192, 168, 0, 1);
	IP4_ADDR(&ipconfig[1], 255, 255, 255, 0);
	IP4_ADDR(&ipconfig[3], 8, 8, 8, 8);

	MICROPY_PY_LWIP_ENTER

	struct netif *n = &self->netif;
	n->name[0] = 'e';
	n->name[1] = '0';
	netif_add(n, &ipconfig[0], &ipconfig[1], &ipconfig[2], self, eth_netif_init, ethernet_input);
	netif_set_hostname(n, mod_network_hostname_data);
	netif_set_default(n);
	netif_set_up(n);

	dns_setserver(0, &ipconfig[3]);
	dhcp_set_struct(n, &self->dhcp_struct);
	dhcp_start(n);

	netif_set_link_up(n);

	MICROPY_PY_LWIP_EXIT
	}

Portenta H7 Ethernet does not connect #15877

Description

Port, board and/or hardware

MicroPython version

Reproduction

Expected behaviour

Observed behaviour

Additional Information

Code of Conduct

Activity

kwagyeman commented on Sep 19, 2024

razvanphp commented on Sep 20, 2024

kwagyeman commented on Sep 20, 2024

kwagyeman commented on Sep 20, 2024

razvanphp commented on Sep 23, 2024

razvanphp commented on Sep 23, 2024

kwagyeman commented on Sep 23, 2024

razvanphp commented on Sep 24, 2024

kwagyeman commented on Sep 24, 2024

razvanphp commented on Sep 28, 2024

kwagyeman commented on Oct 2, 2024

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