CONFIG_BLE memory optimization

[Ubaid_M]

Hi.

I am using nCS with vscode to develop an application, So far I was only working with peripherals and my build file (.bin) size was about 70kb.
Now I want to add BLE APIs to my application & the moment I enabled CONFIG_BLE in prj.conf, the build file (.bin) size spiked suddenly to 180kb.

This 100kb spike on my application build file (.bin) just by enabling BLE is unacceptable for my device, kindly suggest how do I cut this down..?

Thanks,

[Marte Myrvold]

Hi,

We have a guide for how to reduce the memory footprint of your application, Memory footprint optimization.

Best regards,

Marte

[Ubaid_M]

Hi,

Thanks for the suggest 

Marte Myrvold said:

Memory footprint optimization.

Can you further suggest how to similarly optimize BLE-Mesh builds..?

Thanks,

[Marte Myrvold]

Hi,

Unfortunately we do not have similar guides for Bluetooth mesh as of now, but the general recommendation for optimizing memory footprint is to turn off features you do not use and to reduce the stack size of threads and buffer sizes. You can find a list of configuration options in the Kconfig reference here: All Configuration Options. If you search for mesh there you will find configuration options regarding mesh that you can set, such as CONFIG_BT_MESH_ADV_STACK_SIZE.

Best regards,

Marte