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CC2340R5: Inquiry About Data Exchange in Connected Mode for CC2340R5 BLE Devices.

Ratan Dalei
Prodigy 145 points
Part Number: CC2340R5

Tool/software:

Hi Team,

We have two CC2340R5 launchpad board, with one acting as a central device and the other as a peripheral. I used the basic BLE SDK without making any changes, only configuring one device as a peripheral and the other as a central. My question is: in connected mode, do BLE devices continuously exchange information to maintain the connection? If so, how many bytes are exchanged, and is there a method to find out?

Board:-LP-EM-CC2340R5

SDK:simplelink_lowpower_f3_sdk_7_40_00_64

Your assistance would be greatly appreciated.

Thanks & Regards

Ratan

  • 0
    TI__Genius 15535 points

    Hello Ratan,

    Thanks for reaching out. May I ask if this is an automotive related application? Are you using the cc2340r5-Q1 device version?

    During a connection, the devices will send data in the form of packets. If there’s no data to be send during connection events, then “empty" packets are sent. In general the packet exchanges are used as a handshake to maintain the connection. You can use a Bluetooth sniffer to take a look at the information/packets that are being exchanged over the air and inspect the amount of bytes that will depend on the Bluetooth configuration and your application.

    BR,

    David.