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RTOS/LAUNCHXL-CC2650: RTOS/LAUNCHXL-CC2650:

nan li44
Expert 2025 points
Part Number: LAUNCHXL-CC2650
Other Parts Discussed in Thread: CC2650, CC2500

Tool/software: TI-RTOS

Use CC2650 to send 15 bytes,config as:    

Preamble :4 byte

Sync : 4 byte

Baud rate :70K

NO CRC

i find it takes 3352us to finish the  transmission,but the cc2500 just takes less than 3100us,what's the different between those two?

and how to shorten the CC2650's transmit time?

  • 0
    TI__Genius 9705 points

    Hello,

    How are you measuring the transmission time, are you looking at the RFC_GPO signal for PA timing? In addition to the payload time, there is additional time needed for command processing on CC2650. However, we need information how this number was measured to validate it.

    Regards,

  • 0 in reply to SVS
    Expert 2025 points

    yes, i measure the  transmission time 3 ways:

    1.look at the RFC_GPO

    2.Set the IO7 when call Cmd to send the 15 bytes, and enable the interrupter transmission finished,in the callback(), reset the IO7,Pulse Width is 3352us.

    3.use one CC2650 sends,and the other one to receive,the time is also 3352us

    can TI team give us a accurate data: how long does it takes to send 15 bytes ?

  • 0 in reply to SVS
    Expert 2025 points
    Hello,
    Are there any news regarding this topic?