Good morning (o;
Long time I’ve used riot-os…so I pulled out my old nrf52840 USB dongles and started with the gnrc_border_router example…
It builds fine and flashes correctly…but after flashing /dev/ttyACM0 is no longer available…and I see in the logs:
Sep 20 10:35:44 blender kernel: [12871.030979] usb 1-5: USB disconnect, device number 19
Sep 20 10:35:44 blender kernel: [12871.032786] xhci_hcd 0000:01:00.0: WARN Set TR Deq Ptr cmd failed due to incorrect slot or ep state.
with the gnrc_networking example I still have /dev/ttyACM0 device and can see the riot-os console…
Anything broken with the border router example and the nrf52840 USB dongle?
thanks in advance
richard
Seems I have to add to the Makefile:
USEMODULE += auto_init_usbus
USEMODULE += usbus_cdc_ecm
But then after flashing /dev/ttyACM0 is gone again…but instead I see a new ethernet interface listed as:
enxa63b490bf381: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether a6:3b:49:0b:f3:81 txqueuelen 1000 (Ethernet)
But “make term” still wants to use a serial port…
So how can I use the nrf52840 dongle as a border router?
Or it is impossible to use this device?
The stdio_cdc_acm module should be included automatically for this board, but does it help when you add it manually?
@hauke has used this board as a border router not too long ago.
I’m a little further (o;
Of course UPLINK needs to be set to cdc-ecm…so the ACM entry is still there after flashing…
sudo sh /home/me/develop/riot/dist/tools/usb-cdc-ecm/start_network.sh --use-dhcpv6 xxxx:aa08:401f:fff0::/64 /dev/ttyACM0
Waiting for network interface.
Found interface: enxa63b490bf381
net.ipv6.conf.enxa63b490bf381.forwarding = 1
net.ipv6.conf.enxa63b490bf381.accept_ra = 0
Twisted not available, please install it if you want to use pyterm's JSON capabilities
2021-09-24 12:45:18,753 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
So how would I now tell the nrf dongle to use the IPv6 prefix from my ISP…
Well…not really a guide (o;
But no help when applying the changes…
Not even the the interface 6 ipv6 address is pingable from the host…or vice versa…
Doesn’t even show a L2 neighbour address for the wired link:
2021-09-24 13:54:53,781 # Neighbor link layer stats:
2021-09-24 13:54:53,782 # L2 address fresh etx sent received rssi lqi avg tx time
2021-09-24 13:54:53,783 # -------------------------------------------------------------------------
2021-09-24 13:54:53,783 # Neighbor link layer stats:
2021-09-24 13:54:53,784 # L2 address fresh etx sent received rssi lqi avg tx time
2021-09-24 13:54:53,785 # -------------------------------------------------------------------------
2021-09-24 13:54:53,786 # A6:3B:49:0B:F3:81 16 200% 0 16 0 dBm 0 0 µs