Increase ATT_MTU size in x-nucleo-BNRG2A1 evaluation board or BLUENRG-M0A

[Gfang.1]

I have seen some thread about this topic but it's still not clear to me.

I'm using the x-nucleo-BNRG2A1 which embed a BNRG-M2SP. Is it possible to increase the ATT_MTU size ? for example in the sample example code we do a aci_gatt_exchange_config(connection_handle) but there is no way to change or initialize the ATT_MTU size.

same thing with the BLUENRG-M0A which is 4.2 compliant.

Regards,

[Winfred LU]

Set the attMtu parameter during initialization when calling BlueNRG_Stack_Initialization().

GATT exchanging for MTU is still required, since the ATT MTU is a negotiated value.

[Gfang.1]

Thanks for your reply, But I'm currently running the X-cube-BLE2 examples code (version 3.2.0) and there is no  BlueNRG_Stack_Initialization() function.

Can you point me to the right API to use?

Indeed the MTU is a negotiated value that's why I try to pair two x-nucleo-BNRG2A1 or using the sample App on an iPhone

Regards

[SYann.11]

Any response here?

[mikez33308]

Did you ever find the solution for this? I'm stuck in the exact same shortcoming.