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CC1101: Is there any way to achieve full-duplex communication between CC1101s?

Andrew Su
Intellectual 1625 points
Part Number: CC1101

Tool/software:

dears,

my customer is planning to use CC1101for elevator repeater, from the manual that CC1101 is a half-duplex chip, and the sending mode and receiving mode are controlled  by software configuration. the repeater need the underlying path (between two CC1101s) to communicate in  full-duplex mode. So the customer is wondering if there is a way to achieve full-duplex communication between 2 CC1101s?  Could we use CC1101 to simulate full-duplex, such as achieving synchronization between two CC1101s, and switching uplink and downlink communications according to specific time slots? (Can the clock signal output by GDO achieve synchronization between two CC1101s).

Or do we have any other solution similar to CC1101 but support full-duplex communication?

thanks a lot!

  • 0
    TI__Expert 7645 points

    Hi Andrew,

    CC1101s is a transceiver which means it is either in RX or in TX. It can never transmit and receive at the same time.
    In a usual setup you would connect an MCU to the CC1101 that would set it to RX and TX depending on what is needed.

    I'm confused about you full-duplex statement. With 1 radio you will always need to chose if you are in receiving or sending mode. This is the same for the wireless MCUs.
    But of course the timing on when to be in sending and when to be in receiving mode - the communication protocol - is what decides about the information flow.

    Can you help me to understand better what you would like to achieve so that I can help with more detailed suggestions?

    Kind regards,
    Theo