Hi,
In our project, we are planning to use the nRF9160 for both LTE-M and Wi-Fi.
Thus, we have connected the nRF9160-DK to the nRF7002-EK in the developing phase as we read that the nRF7002 should work with the nRF91 series.
https://www.nordicsemi.com/-/media/Software-and-other-downloads/Product-Briefs/nRF7002-IC_Product-Brief-v1.1-1.pdf
When we're flashing the shell application with the scan-only overlay, everything works fine and we are able to scan for available networks using the shell.
However, when we are flashing an application to connect to a specific network from the Wi-fi-lessons, we get error messages after flashing:
[00:00:00.623,474] <err> wifi_credentials_backend: psa_export_key failed, err: -134
[00:00:00.623,474] <err> wifi_credentials: Initializing WiFi credentials storage backend failed, err: -14
*** Booting nRF Connect SDK v2.9.99-00d62ec60e31 ***
*** Using Zephyr OS v4.0.99-71b0e2cc8bc4 ***
[00:00:00.624,328] <inf> Lesson2_Exercise2: Initializing Wi-Fi driver
[00:00:00.624,664] <inf> wifi_supplicant: wpa_supplicant initialized
[00:00:00.634,674] <err> wpa_supp: Failed to open socket: Unknown protocol, proto: 36488, af: 3
[00:00:00.634,735] <err> wpa_supp: Failed to create l2_packet: 0
[00:00:01.668,548] <err> wifi_supplicant: Failed to add iface wlan0
Build command: west build -p -b nrf9160dk/nrf9160/ns -- -DSHIELD=nrf7002ek
Application: https://github.com/NordicDeveloperAcademy/wifi-fund/tree/main/v2.9.0-v2.8.0/l2/l2_e2_sol
However, when flashing the same application to the nRF7002-DK, which is using the nRF5340, we are able to connect to our Wi-Fi network.
Therefore, we are wondering if there is any missing functionality in the nRF9160 in order to connect to Wi-Fi or could we be missing something?
We observe that there is less RAM on the nRF9160 than on the nRF5340, but are there other limitations we need to know about?
Best regards,
Morten Lie
Adigo AS
