Wifi dongle not detected Apalis Imx8 Evaluation board

Technical Support
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1

Hello everyone,

I am using an Apalis imx8 4GB module with an Apalis Evaluation board 1.1.

I just got the Apalis Evaluation board, I connected a USB wifi dongle to one of the ports and the wifi worked on the board and everything was fine, now the next day , turning it on and the wifi dongle is not detected anymore, I tried re-plugging to different ports, restarting, testing with a different dongle, but nothing changes.

I tried one wifi dongle from ASUS and one from TP link, they work fine on the PC, and the ASUS one worked fine yesterday on the evaluation board.

Any ideas what is happening ?

Additional info:
When connected first time, I got this message:

Device ‘wlan0’ successfully activated with ‘f064700f-3ded-474a-95cb-aecfd7949198’.

today I can’t even detect wlan0 using the “nmcli device” command
image

but using “nmcli connection show” I get the following:


torizon@apalis-imx8-07278749:~$ nmcli connection show
NAME      UUID                                  TYPE      DEVICE
O2        f064700f-3ded-474a-95cb-aecfd7949198  wifi      --
network0  958cc5e3-1bbf-3d64-beeb-020d4414e254  ethernet  --
network1  78c31df4-8c89-31a6-9aeb-d5603e230e4e  ethernet  --

also using "*nmcli device wifi list:

torizon@apalis-imx8-07278749:~$ nmcli device wifi list
IN-USE  BSSID              SSID  MODE   CHAN  RATE        SIGNAL  BARS  SECURITY
        B2:A7:B9:FA:AB:02  --    Infra  2     260 Mbit/s  9       *     WPA2
        B0:A7:B9:FA:AB:02  O2    Infra  2     260 Mbit/s  4             WPA2

IN-USE  BSSID              SSID  MODE   CHAN  RATE        SIGNAL  BARS  SECURITY
        B2:A7:B9:FA:AB:02  --    Infra  2     260 Mbit/s  9       *     WPA2
        B0:A7:B9:FA:AB:02  O2    Infra  2     260 Mbit/s  4             WPA2

Note: O2 is the wifi SSID

update 2:
I tried connecting to the wifi again anyways, it prompts for the password and gives the connection successful message but to ‘mlan0’ instead of ‘wlan0’
However, pinging the internet is not working and I cannot ssh into the ip of the device

torizon@apalis-imx8-07278749:~$ nmcli d
DEVICE           TYPE      STATE         CONNECTION
mlan0            wifi      connected     O2
uap0             wifi      disconnected  --
ethernet0        ethernet  unavailable   --
br-b3ad46e88aa8  bridge    unmanaged     --
docker0          bridge    unmanaged     --
can0             can       unmanaged     --
can1             can       unmanaged     --
veth8322cd7      ethernet  unmanaged     --
veth885caf9      ethernet  unmanaged     --
sit0             iptunnel  unmanaged     --
lo               loopback  unmanaged     --
2

Hello,

the issue is solved, I forgot to mention that I removed some of the GPIO connections between rows A and B in X3 GPIO connector ( GPIO 1-8 and PWM 1-4, some SPI X9 pins), putting them on fixed the issue, in this case I am not sure which pins exactly caused the problem, but with rows disconnected all USB ports didn’t detect anything and the DVI display also wasn’t responding.

Any idea which pins caused this ?

3

It could one or more pins in A31-A34 range. Please inspect the Apalis Eval board schematic for details.

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