topic How to Extract CSI Data from NXP FRDM RW612 Module in Wi-Fi® + Bluetooth® + 802.15.4

How to Extract CSI Data from NXP FRDM RW612 Module

mieintern02 — Mon, 04 Aug 2025 08:42:40 GMT

Hi all,

I’m currently working with the NXP FRDM-RW612 development board and aiming to extract Channel State Information (CSI) data for a Wi-Fi sensing application. I’ve reviewed the SDK documentation and explored some RF diagnostic modes but haven’t found a clear path for accessing CSI.

Could someone share guidance or point me to the right commands, firmware configurations, or examples that enable CSI data extraction on this platform? If you’ve done this successfully or found relevant NXP resources, I’d really appreciate your input.

Thanks in advance

Re: How to Extract CSI Data from NXP FRDM RW612 Module

Darlena — Mon, 04 Aug 2025 23:18:07 GMT

Hi @mieintern02,

There is a separate application note on how to configure CSI on FreeRTOS platforms. The commands and examples are clearly explained. Please refer to AN14281: Channel State Information (CSI) on FreeRTOS. Let me know if you have any further questions!

Thanks,

Darlena Nguyen

Re: How to Extract CSI Data from NXP FRDM RW612 Module

rb_ots — Fri, 19 Dec 2025 17:29:43 GMT

I am currently also trying to extract CSI data from the FRDM-RW612. I assume that I am missing a key component that is causing CSI callbacks to note work, as misconfiguring parameters does result in the firmware announcing an error such as incorrect channel configuration, etc. Unfortunately I still cannot get any callbacks for CSI.

Despite secure access, the AN14281: Channel State Information (CSI) on FreeRTOS file is showing as unavailable and I haven't been able to get help from Tech Support or docstore support on how I can get access to this file (I have requested and been approved for access on all related categories). Posts like this tell me it's possible, but I cannot figure it out.

Any help would be much appreciated.