Use nrf52832 to be a BLE Gateway . SRAM is not enough in NCS. How to optimize?

[QiuR]

I use nrf52832 to be a BLE Gateway in NCS V1.4.2

I only added it in the prj.conf file
CONFIG_BT=y
CONFIG_BT_CENTRAL=y
CONFIG_BT_GATT_CLIENT=y
These configuration items, after compilation, occupy over 80% of SRAM
Combined with the currently written code, SRAM has been used up to 99%
How can I delete some unnecessary configuration items that occupy SRAM?
Is there any way to leave extra SRAM space?

Compiled print information

[236/241] Linking C executable zephyr\zephyr_prebuilt.elf

Memory region Used Size Region Size %age Used

FLASH: 36228 B 48 KB 73.71%

SRAM: 23664 B 64 KB 36.11%

IDT_LIST: 72 B 2 KB 3.52%

[280/293] Linking C executable zephyr\zephyr_prebuilt.elf

Memory region Used Size Region Size %age Used

FLASH: 169336 B 204288 B 82.89%

SRAM: 65482 B 64 KB 99.92%

IDT_LIST: 152 B 2 KB 7.42%

[Vidar Berg]

Hello,

You can find general recommondations on how you can optimize your Bluetooth application in the SDK documentation here: https://docs.nordicsemi.com/bundle/ncs-2.7.0/page/nrf/test_and_optimize/optimizing/index.html 

I also recommend considering using a more recent SDK version (the latest SDK version at the time of writing is v2.7.0). Multiple improvements have been made to the memory usage, among other things, which may help you reduce the overall memory footprint of your application.

Best regards,

Vidar