RTOS/CC2640R2F: Flow control violated if UART_LOG_ENABLE is defined

souhaib touati

Part Number: CC2640R2F

Tool/software: TI-RTOS

Hello

On the CC2640R2F, after connecting with the BLE central, when service discovery starts, I get a FLow Control violation message "Flow control violated. Opcode of offending ATT msg: 0x10"

and this happens only if UART_LOG is enabled.

Project is based on Project_zero with one additional Task ( priority 1, not communicating directly with ble stack).

Project_zero_task priority is raised to 2

Thank you for your help.

over 8 years ago

0 AB over 8 years ago

TI__Mastermind 24856 points

Hello,

Do you get this problem if the additional task is the same priority as the project zero task?

Regards,
AB

0 AB over 8 years ago in reply to AB

TI__Mastermind 24856 points

Hello,

Any updates on your problem?
Regards,
AB

0 souhaib touati over 8 years ago in reply to AB

Prodigy 30 points

Hello,

sorry for the late reply, I was digging on other issues .)

for the problem, I tried all combinations:

- prz_task -> 2 ; pTask -> 1

- prz_task -> 1 ; pTask -> 1

- prz_task -> 1 ; pTask -> 2

but the problem is always there. everything is working except ble connection. (the device is advertising correctly)

thank you

Souhaib Touati

0 RachelP over 8 years ago in reply to souhaib touati

TI__Genius 12815 points

Hi Souhaib,

Are you using the default Simple Central application to connect to your Project Zero device? Other than adding an additional task, did you make any other modifications to your project?

I would recommend following the guidance in the SimpleLink Academy Bluetooth low energy + Sensors BoosterPack lab to see how to create an additional non-BLE task: dev.ti.com/.../

Bluetooth®︎

Bluetooth forum

RTOS/CC2640R2F: Flow control violated if UART_LOG_ENABLE is defined