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.

CC2642R: Simple central device quickly connects slave machines

Part Number: CC2642R
Other Parts Discussed in Thread: SYSCONFIG,

Routine: simple_ central_ CC26X2R1_ LAUNCHXL_ tirtos7_ ticlang

To achieve a simple central device fast connection to the slave, the default central device connects to the slave (via MAC address connection) and writes data as quickly as 8-10 seconds. How can I accelerate this? The main delay lies in the slow callback of "Updated: 0xF460770B051C, connTimeout: 6000"

  • Hello,

    Can you specify the SDK being used for the simple_central project? Is the peripheral device also a CC2642R? If so, then can you specify which project is running on the CC2642R? If it is the simple_peripheral project, then I would suggest disabling the "Send Parameter Update Request" checkbox in SysConfig to speed up connection & paring.

    Can you try this modification and verify if the connection time is reduced?

    Best Regards,


  • Thank you for your reply! It does use a simple central project based on CC2642R. Before that, I could speed up the connection by modifying "paramUpdateDelay", which requires a total of 4-5 seconds for write operations. Why does it take 2 seconds to modify the write time? As shown in Figure 1.

    If you uncheck "sendParamsUpdateReq" as described above, the write operation cannot be performed. Why? As shown in Figure 2

  • Hi,

    Got it. Thank you for the additional information! Can you share the connection interval that you are using for you connection? If possible, then I would try to reduce it to 30-50ms or lower.

    Best Regards,