CC2640R2F: How to know the MTU of current connection? (I don't want to change it.)

Victor Chu

Part Number: CC2640R2F

Hi,

My program is working in BLE SimplePeripheral. Is there any other API to get the MTU for current connection? I don't want to change the MTU size.

To be precise, how to get the value of MTU_SIZE in the SimpleBLEPeripheral_processStateChangeEvt() of simple_peripheral.c when GAPROLE == GAPROLE_CONNECTED?

Thank you!

Best Regards,

Victor

over 6 years ago

0 Zahid Haq over 6 years ago

TI__Mastermind 25035 points

Hi,

The central device should issue an Exchange MTU Request after connection has been established, then you should get an ATT_MTU_UPDATED_EVENT GATT callback with the updated MTU value. See User's Guide for more info:

software-dl.ti.com/.../l2cap.html

Best wishes

0 Victor Chu over 6 years ago in reply to Zahid Haq

Intellectual 670 points

Dear Zahid,
I found it works for iOS, but not for Android. Does it mean that Android always use 20-byte by default if the phone do not change the MTU?
Thank you!

Best regards,

Victor

Bluetooth®︎

Bluetooth forum

CC2640R2F: How to know the MTU of current connection? (I don't want to change it.)