Hi Ilya,
The node generating the request is indeed out of any network in my case. My setup includes a board that I bring up as a coordinator. Another board then starts up, the SPI interface to the ZNP is initiated, the ZNP is reset and then before anything else I execute this command. So the node is definitely out of any network. My aim is to retrieve a list of available networks and then join one that I select manually from the list.
A little correction to my analysis in my original post. I mentioned that the 0x02 which I get in the response indicated invalid parameters error code, but actually it indicates Invalid command id as per CC2530 ZNP Interface Specifications document page 16.
This leads me to think that the firmware that I have flashed onto the CC2530 is not recognizing the 0x25 0x26 command I am sending to it (My command string is 0x05 0x25 0x26 0x00 0x01 0x00 0x00 0x0e).
Can this be a possibility ?
Thanks and with best regards,
Sushanta.