RTOS/LAUNCHXL-CC1352R1: hitting 1500 byte stack memory limit?

Taylor Ramirez

Tool/software: TI-RTOS

I'm trying to combine two projects together and enhance them.

The multi-role project from SDK: simplelink_cc13x2_26x2_sdk_3_10_01_11
The guiboostxlsensors project from SDK: sail_1_40_00_00

When testing the individual projects the multi-role project performs pretty much as expected, however, the guiboostxlsensors seems to not work correctly. Further investigation into the project lead me to find the issue is something to do with memory. I disabled certain task threads in the project leaving only the taskTMP, taskOPT, and updateControlThreadHandler tasks active. After doing this I can get information from the sensors to the terminal. Counting all the task stack sizes I get 5684 bytes when I reduce the project down in order to get it to run I have about 1500 bytes of stack space. To my understanding, this device has 80KB of RAM, though I know some is reserved for the Ti-RTOS. I am unable to determine why this memory issue is being hit. Is there a way to increase the stack size or am I missing something here?

Thanks

over 6 years ago

0 Evan W over 6 years ago

TI__Mastermind 41380 points

Hi Taylor,

Have you used TIRTOS ROV to check the peak stack sizes and watch your heap to make sure you aren't having a heap overflow?

http://dev.ti.com/tirex/content/simplelink_cc13x2_26x2_sdk_3_10_00_53/docs/ble5stack/ble_user_guide/html/ble-stack-5.x-guide/debugging-index.html#ti-rtos-object-viewer

http://dev.ti.com/tirex/content/simplelink_cc13x2_26x2_sdk_3_10_00_53/docs/ble5stack/ble_user_guide/html/ble-stack-5.x-guide/debugging-index.html#debugging-common-heap-issues

Do you have auto heap enabled? I suggest reading through this documentation on Memory and RAM usage as well: http://dev.ti.com/tirex/content/simplelink_cc13x2_26x2_sdk_3_10_00_53/docs/ble5stack/ble_user_guide/html/ble-stack-common/memory_management.html#ram

I've assigned your thread to an expert to follow up. Please verify if you have profiled your heap and stack sizes and whether or not you are using auto heap.

0 Taylor Ramirez over 6 years ago in reply to Evan W

Prodigy 130 points

Thanks for the information, I also found that the heap was set to be only 4096 which explains why I was getting out of memory errors. After changing that value and reviewing the memory usage via memory allocation, everything now works.

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RTOS/LAUNCHXL-CC1352R1: hitting 1500 byte stack memory limit?