RTOS/CC1352P: Crashes during Task_create

Hi Bill,

For clarification, are you using Task_create or Task_construct? Can you provide an example of the code you are trying to implement which causes the crash? You can further enable debug settings by using app_debug.cfg from source\ti\zstack\rtos of the SDK installation path. You may also want to turn off optimizations for further insight.

Regards,
Ryan

Hi Ryan,

Not sure if you saw my update to the original post where I added this snippet of code showing how we're calling the Task_create. 

Task_Params_init(&taskParams);
taskParams.stackSize = taskInfo->stacksize;
taskParams.stack = malloc(taskInfo->stacksize);
taskParams.priority = taskInfo->priority;
taskParams.arg0 = (UArg)tss;
tss->taskId = taskid;
tss->taskHandle = Task_create((Task_FuncPtr)taskInfo->threadStart, &taskParams, Error_IGNORE);

This is being done inside taskFxn() in main.c We've already turned off optimization (that's usually the first thing we do).

Besides increasing the number of allowed tasks (ICALL_MAX_NUM_TASKS), we had also increased the heap0 size in the BIOS setting of app.cfg.  In this SDK version when we do the same thing we get this warning:

BIOS.heapSize and Memory.defaultHeapInstance have both been set.  BIOS.heapSize ignored.  Using Memory.defaultHeapInstance.

How should we be increasing the heap?

I will try the app_debug.cfg, but what should I be looking for? Would using the ROV provide any insight? (I don't know how to use this tool, I've only read a little about it)

Thanks for the help.

- Bill

Hi Bill,

Can you please provide me with the constants and variables so that I can re-create the issue? I would recommend moving this code from taskFxn() to main(), renaming taskParams as this is typically used for the application task (at least in the examples), and using Task_construct instead of Task_create. Here is how zc_ota_server creates another task for the NPI:

void NPITask_createTask(void)
{
memset(&npiTaskStack, 0xDD, sizeof(npiTaskStack));

// Configure and create the NPI task.
Task_Params npiTaskParams;
Task_Params_init(&npiTaskParams);
npiTaskParams.stack = npiTaskStack;
npiTaskParams.stackSize = NPITASK_STACK_SIZE;
npiTaskParams.priority = NPITASK_PRIORITY;

Task_construct(&npiTaskStruct, NPITask_Fxn, &npiTaskParams, NULL);
}

http://dev.ti.com/tirex/content/simplelink_cc26x2_sdk_2_30_00_34/docs/zstack/html/tirtos/config.html?highlight=heap#creating-vs-constructing 

The Heap Configuration in app.cfg has been reworked due to the deprecation of ICALL, HEAPMGR_CONFIG = 0x80 is set by default for auto-sizing (so you shouldn't need to alter it) but you can try using 0x00 instead for static as defined by HEAPMGR_SIZE.

And yes, using app_debug.cfg enables the ROV for heap management: dev.ti.com/.../zigbee-index.html

Regards,
Ryan

Hi Bill,

I'm glad to hear that you were able to resolve the issue, this is unfortunately no clear or recommended path for debugging a HWI exception handler as further explained by Severin in this E2E post: e2e.ti.com/.../2564438

Regards,
Ryan