nRF7002 cannot connect to SSID after a while

[Ben_Squar3d]

Hi,

As the title states, after a while, the nRF7002 fails to connect SSID after a while. It happens either we perform net_if_up/down or not. I suspect the nRF7002 to be in a bad state because when I measure the consumption with the ppk2, I have around 750µA instead of around 80µA idle on my system, or ~150µA when interface is Up but IDLE

During connect attemp, I have several mA spikes, but not even close to the  ~200mA spikes and ~60mA floor I am supposed to have when connecting/transmitting.

I am sorry I did not captured the trace as I wasn't expecting to post the issue here at first. As it happend after several days of working, I did not managed to attach a debug session to it yet.

Maybe you have some insight on what is going on, or what could be the issue.

Thank you for your help

[Simonr]

Hi Benoit

Håkon is out of office, so I have taken over this case while he's away. Have you also set the RPU recovery propagation delay for example which seems to be required when doing an RPU recovery. https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/drivers/wifi/nrf70_native.html#kconfig_configuration

If not it could be that this strange behavior is the device being caught in a reset loop due to the RPU recovery because the app/stack hasn't had enough time to clean up the resources used before rebooting.

Are you able to see this issue when running one of our sample projects on your custom board? Alternatively, can you see the same issue when using an nRF7002 DK with your custom firmware?

I think a good first step is to narrow down whether this is a SW or HW issue.

Best regards,

Simon

[Ben_Squar3d]

Hi,

Sorry for delay, I was out of office. I could tweak  CONFIG_NRF_WIFI_RPU_RECOVERY_PROPAGATION_DELAY_MS but how much? What are typical values and which value do you suggest? 

Best regards