TM4C1290NCZAD: Facing problem when connecting via BT classic after BLE connection

Amalorpavam Raju

Prodigy 10 points

Part Number: TM4C1290NCZAD
Other Parts Discussed in Thread: CC2564MODN

Details: TM4C1290NCZAD MCU.

Compiler: v5.2.9

TI RTOS: v2.16.1.14

Tiva C series: v2.1.1.71b

Bluetooth stack: V1.2 R2 (CC2564MODN)

I have paired and connected using BLE. After disconnecting BLE device, I tried to connect using already paired BT classic device. But It is not successful. I had to pair again to make the BT classic connection. It looks like the key is removed when disconnecting BLE connection.

I have seen that V1.2 R2 is the latest bluetooth stack for Tiva series. Is this key removal is a know bug with this bluetooth stack or something missing in the application side?. Please share feedback if anyone has tried this scenario.

28 days ago

0 Eric Rentschler 22 days ago

TI__Prodigy 280 points

Hi Amalorpavam,

I believe connected devices must be added to a white list to be remembered for the next time it attempts connection. Are you adding the device to the white list?

Thanks,

-Eric Rentschler

0 Amalorpavam Raju 7 hours ago

Prodigy 10 points

Hi Eric,

Thanks for your response. I found that the root cause of this problem was in my application and I fixed it. It has nothing to do with the stack as it does what is expected.

Thanks

Arm-based microcontrollers

Arm-based microcontrollers forum

TM4C1290NCZAD: Facing problem when connecting via BT classic after BLE connection