We have the list of wl commands WL Tool for Embedded 802.11 Systems: CYW43xx Technical Information where you can bypass the WiFi stack and interact with the interface directly. Please check the above document and see if it's helpful.
We can change the channels and data rates by using WL commands but I am not sure regarding rest of the functionalities(setup Rx packet filters & send and receive raw data frames). Please give me some time to check internally and I will get back to you with more information.
Thank you for the message. The commands in the above linked document are for Linux commands for when a Linux system is interfaced with the CYW43xx WiFi transceivers.
I should clarify my query above. We need to interface an ARM Cortex-M4 microcontroller with the CYW43xx WiFi devices using SDIO serial communicates. This microcontroller will run with or without an RTOS (not Linux).
Can you please send through the reference manual for the SDIO serial communication commands to perform the above WiFi operations on the CYW43xx WiFi devices?
Many thanks, Andrew