I followed the steps in the Ultra96-V2 Getting Started Guide v2.0 to test my newly purchased Ultra96V2. I am using the Windows 10 operating system. After using Etcher v1.18.11 to flash the Ultra96v2_oob_2020_1_210303_8GB image onto the SD card, I set Ultra96V2 to boot from the SD card.
However, the terminal is always reporting ERROR:gcm_channel_status_request.cc(145)] GCM channel request failed, and i cannot see the network called Ultra96-V2_<MAC_ADDRESS> in windows10 of my pc.
I also tried using the wifi.sh, I get the problem as follow:
root@ultra96v2-2020-1:~# ./wifi.sh
Stopping Connection Manager
ifdown: interface wlan0 not configured
Successfully initialized wpa_supplicant
[ 452.862578] power up request for already powered up source Wifi
[ 452.868507] Device already up. request source is Wifi
[ 452.873584] wilc_sdio mmc1:0001:1 wlan0: Failed to get mac address
[ 452.879769] wilc_sdio mmc1:0001:1: wilc_sdio_disable_interrupt
Could not set interface wlan0 flags (UP): Invalid argument
nl80211: Could not set interface 'wlan0' UP
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
wlan0: Failed to initialize driver inte[ 452.901227] power up request for already powered up source Wifi
rface
[ 452.910258] Device already up. request source is Wifi
[ 452.918127] wilc_wlan_firmware_downloadDownloading firmware size = 136788
[ 453.141540] wilc_wlan_firmware_download Offset = 119860
[ 453.149016] wilc_wlan_firmware_download Offset = 136788
[ 453.685160] wilc_sdio mmc1:0001:1: wilc_sdio_disable_interrupt
RTNETLINK answers: Input/output error
udhcpc: started, v1.31.0
[ 454.724941] power up request for already powered up source Wifi
[ 454.730897] Device already up. request source is Wifi
[ 454.735992] wilc_sdio mmc1:0001:1 wlan0: Failed to get mac address
[ 454.742177] wilc_sdio mmc1:0001:1: wilc_sdio_disable_interrupt
RTNETLINK answers: Invalid argument
udhcpc: sending discover
udhcpc: sendto: Network is down
udhcpc: read error: Network is down, reopening socket
udhcpc: sending discover
udhcpc: sendto: Network is down
udhcpc: read error: Network is down, reopening socket
udhcpc: sending discover
udhcpc: sendto: Network is down
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
udhcpc: read error: Network is down, reopening socket
So i tried ip link set wlan0 down and ip link set wlan0 up, then i got erros as follow:
root@ultra96v2-2020-1:~# ip link set wlan0 down
root@ultra96v2-2020-1:~# ip link set wlan0 up
[ 792.877742] power up request for already powered up source Wifi
[ 792.883680] Device already up. request source is Wifi
[ 792.891445] wilc_wlan_firmware_downloadDownloading firmware size = 136788
[ 793.113877] wilc_wlan_firmware_download Offset = 119860
[ 793.121413] wilc_wlan_firmware_download Offset = 136788
[ 793.653169] wilc_sdio mmc1:0001:1: wilc_sdio_disable_interrupt
RTNETLINK answers: Input/output error
Besides, I also get a img called ultra96v2_sbc-v2022.2-2023-05-10.img from Ultra96V2 GSC. After flashing this img, the GCM channel error is disappered. But the wifi is still not working, after excuting ./wifi.sh, errors are as follow:
root@u96v2-sbc-2022-2:~# ls
Vitis-AI bt.sh usb_gadget_ethernet.sh
asl_classification_vitis_ai dpu_sw_optimize wifi.sh
avnet_dualcam_python_examples pmic-prog wpa_supplicant.conf
root@u96v2-sbc-2022-2:~# ./wifi.sh
Stopping Connection Manager
ifdown: interface wlan0 not configured
Successfully initialized wpa_supplicant
nl80211: kernel reports: Authentication algorithm number required[ 79.334456] power up request for already powered up source Wifi
[ 80.095288] wilc_sdio mmc1:0001:1 wlan0: WLAN initialization FAILED
Could not set interface wlan0 flags (UP): Timer expired
nl80211:[ 80.102467] wilc_sdio mmc1:0001:1 wlan0: Failed to frame register
Could not set interface 'wlan0' UP
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
wlan0: Failed to initialize driver interface
[ 80.176570] power up request for already powered up source Wifi
[ 80.182567] wilc_sdio mmc1:0001:1 wlan0: Failed to set driver handler
[ 80.189050] wilc_sdio mmc1:0001:1 wlan0: Failed to get mac address
RTNETLINK answers: Invalid argument
And errors of ip link set wlan0 up/down are as follow:
root@u96v2-sbc-2022-2:~# ip link set wlan0 down
root@u96v2-sbc-2022-2:~# ifconfig -a
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:65536 Metric:1
RX packets:1073 errors:0 dropped:0 overruns:0 frame:0
TX packets:1073 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:82876 (80.9 KiB) TX bytes:82876 (80.9 KiB)
p2p0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
sit0 Link encap:IPv6-in-IPv4
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
root@u96v2-sbc-2022-2:~# ip link set wlan0 up
[ 295.100081] power up request for already powered up source Wifi
[ 295.839213] wilc_sdio mmc1:0001:1 wlan0: WLAN initialization FAILED
RTNETLINK answers: Timer expired
root@u96v2-sbc-2022-2:~#
I want to determine what’s causing this problem, whether my hardware is corrupted of if there is a problem with the image that I download from Avnet. Any suggestions would be great!