This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC2520 GPIO setting

Other Parts Discussed in Thread: CC2520, CC2530

Hello,

I use CC2520 & CC2530 with our own evaluation board.

I'd like to build antenna diversity system using external RF switch with MCU.

CC2520 does have the function of SFD notification/exception, but it doens't have the preamble notification/exception.

 

Does anyone know how to detect the preamble (Appropriate GPIO setting value) and issue the exception to MCU?

(So, I'd like to decide the antenna using preamble detection signal.)

 

# if I set 0x40 to GPIOx as input signal, it seems like preamble detection... Please confirm the below.

Many thanks