LAUNCHXL-CC2650: How to send 5000 data which is 32-bit length each?

Remukee S

Prodigy 120 points

Part Number: LAUNCHXL-CC2650

Hi,

We need to transfer 5000 samples of data via BLE.

The MTU size has been changed to 255(maximum).

It takes around 3 mins to transfer the 32-bit 5000 samples of data.

How to speed the above transfer?

over 2 years ago

0 Ammar N over 2 years ago

TI__Mastermind 25810 points

Hey Remukee,

Have you also changed MAX_NUM_PDU? A sniffer capture will help understand what is going on over the air with regards to throughput.

You can also change the connection interval when you need to transmit the data. If the connection interval is every 1s, then this will slow things down quite a bit (as opposed to a 10ms interval).

Please see the following related threads as they might help:

https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/739986/cc2650-how-to-achieve-ble-maximum-throughput-through-data-extension

https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/825276/cc2650moda-transmit-large-data-through-ble-of-cc2650moda

https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/598018/cc2640-unable-to-send-large-data-to-master-through-notifications

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LAUNCHXL-CC2650: How to send 5000 data which is 32-bit length each?