RTOS/CC2640R2F: Default spinlock

avgustine

Part Number: CC2640R2F

Tool/software: TI-RTOS

Hello.
I've got such a problem.
I use a Multirole example for my project on cc2640r2f board
I need to connect 4 BLE devices and a tablet.
When I connect to more than 3 devices from the board (or to 2-3 devices and connect by tablet to board) I ve got "DEFAULT SPINLOCK" error.

What can be the problem and how to get rid of it?

Kind regards.
Ivan.

over 7 years ago

0 Evan W over 7 years ago

TI__Mastermind 40660 points

Ivan,

In the folder for the multi-role example, you will find a README.html file. Under Assumptions/Considerations, you will find the discussion around the preprocessor define MAX_NUM_BLE_CONNS.

If you right click on your app project, go to properties > build > arm compiler > predefined symbols you will find the variable MAX_NUM_BLE_CONNS=x where x is a number. What is yours set to?

Due to the large amount of functionality in this project, it is rather RAM-constrained. If the project is configured for too many connections (via the MAX_NUM_BLE_CONNS preprocessor define) and also security, it is possible for heap allocation failures to occur which will break the stack.

Also see the note for MAX_NUM_BLE_CONNS with regards to HEAPMGR_SIZE in the Stack Users Guide: http://software-dl.ti.com/lprf/simplelink_cc2640r2_latest/docs/blestack/ble_user_guide/html/ble-stack-3.x/creating-a-custom-bluetooth-low-energy-application.html?highlight=multiple%20connections#options

Debugging Heap Issues might also be helpful to review: software-dl.ti.com/.../ble-common_heap.html

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RTOS/CC2640R2F: Default spinlock