multiperipheral with 64byte MTU

[Dream Cob]

Hello

I am working to connect several centrals(MAX : 4) for one peripheral. I found nRF5_SDK_14.1.0_1dda907\examples\ble_peripheral\experimental\ble_app_multiperipheral example for me in SDK library.

Based on this example and nus_uart example, I am going to implement multiperipheral firmware with NUS service, but it doesn't work for 64bytes MTU size. It works well on default MTU size 23bytes.

I want to increase to 64 bytes for MTU size.

SDK is 14.1 and S132. Please help me.

Thank you.

[endnode]

Just based on this info it suggests that stack don't have enough RAM space to allocate all the resources needed to handle larger MTU sizes in (G)ATT layer. But that would be indicated by certain error codes returned to some SD calls. So if you run the project with proper level of debug print-outs in UART or RTT console you should see it easily. That's why I'm asking what does it mean for you "it doesn't work". If you don't know what is happening inside your system then we cannot help you...