CC2652P7: Stack and Heap

Hi Krishna,

The default stack size from the linker file is not the same as the task stack size for RF protocols: https://e2e.ti.com/f/1/t/948859 

The BLE and Zigbee tasks are allocated from Heap which can be configured in the .cfg (TI-RTOS) or .syscfg (TI-RTOS7) files.

Regards,
Ryan

Thanks for the info. I would like to monitor BLE and Zigbee task stack growth/usage. How it can be done?

I am using IAR Embedded Workbench version 8.50.9 and with this how I can see ROV window?

You can define HEAPMGR_METRICS to monitor heap usage as described in the BLE5-Stack Debugging Guide.  It also covers IAR ROV usage.

Regards,
Ryan

Thanks for the info.

I have a question about task stack.

Task stack is allocated from Heap or RAM (general RAM memory)?

I can see that, Stack allocated by linker file and Task stacks both were water marked with 0xBE.

Does task stack contain any header and footer? Please refer below image of Zigbee task stack where first 4 bytes were filled with 0x00 and then it is water marked with 0xBE. Even at the end there 4 bytes of 0x00.

During code execution if I check, last 4 bytes were filled 0x00 and it previous 4 bytes were filled with 0xBE.

But same is not observed in BLE stack task (below image), where there is no 0x00 in 4 array indices.

Can you please explain why it is so? or can you please tell me where I can get details about this (any articles/documents)?

Thanks in advance.

Task stack is allocated from Heap.  I have no comments on task stack default contents.  You could review differences between the taskParams used for Task_construct of both stack tasks, among other protocol differences.  Please refer to the TI-RTOS 7 Kernel Documentation for more information.

Regards,
Ryan