MTU size with using Multi-Link Peripherals

[boseongjjang]

Hi, everyone

I'm developing nRF52832 S132 with SDK 17.0.x

I wanted to change MTU size to 247 using 2 peripheral link in ble_app_multiperipheral example.

but i got these error messages

<warning> nrf_sdh_ble: Insufficient RAM allocated for the SoftDevice.

<warning> nrf_sdh_ble: Change the RAM start location from 0x200037C0 to 0x20003A70.

<warning> nrf_sdh_ble: Maximum RAM size for application is 0xC590.

<error> nrf_sdh_ble: sd_ble_enable() returned NRF_ERROR_NO_MEM.

<error> app: ERROR 4 [NRF_ERROR_NO_MEM] at

C:\Work_Nordic\nRF5SDK17009d13099\examples\ble_peripheral\experimental\ble_app_multiperipheral\main.c:518

PC at: 0x0002E70B

<error> app: End of error report

what i need to do to fix it ??

is it possible to use 247 MTU size ??

thank you

[Eugene Yu]

Hi boseongjjang,

Please refer to this blog post.

You need to adjust the start address of RAM for your application.

Thanks