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STM32WBA BLE Data Throughput example : throughput optimization

SnoZek
Associate II

Hello everyone,

I'm currently working with the STM32WBA65RI Nucleo board.

For my upcoming application, I require a stable BLE throughput of over 800 kbps. However, using the provided example, I can only achieve around 600 kbps.

So far:

  • I'm using an MTU of 244 bytes.

  • 2M PHY 
  • Manage to minimize connection interval : 11.25 ms when using the ST BLE Toolbox app, and 7.5 ms when using a custom script on Windows.

  • I’ve tested with several smartphones/ configuration and also tried increasing the MCU clock, but none of these changes improved the performance significantly.

Has anyone managed to achieve a higher throughput with this setup or found effective optimizations?

Thanks in advance for any insights.

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