CC 2640 system crashes when a new task is added in main under simple ble central project.

Neil,

It depends on what you are going to do with this task. If it is a task that will be registered with the stack to communicate with it then you need to modify these variables. For a standalone RTOS task (for example to handle button inputs, sensors etc) there is no need to modify these.

When using SmartRF Flash Programmer 2, make sure you also flash the stack image (or merge the two hex files for the app and stack) before running.

The below example sets up a new low-priority task in your system waking up every 100ms to execute.

#include <ti/sysbios/knl/Task.h>
#include <ti/sysbios/knl/Clock.h>
#define STACK_SIZE 512
Task_Struct myTask; // Must be global for TI RTOS ROV viewer plugin to find it.
uint8_t taskStack[STACK_SIZE];

void taskFxn(UArg a0, UArg a1) {
  while(1) {
    //Wake every 100ms
    Task_sleep(100 * 1000 / Clock_tickPeriod);
  }
}

int main(void) {
  Task_Params params;
  Task_Params_init(&params); 

  taskParams.stack = taskStack;
  taskParams.stackSize = sizeof(taskStack);
  taskParams.priority = 1;
  Task_construct(&myTask, taskFxn, &taskParams, NULL);
  //...
  
  BIOS_start();
}

Hi,

I am currently using simple ble central project, under main I am trying to add gaprole task for peripheral(GAPRole_createTask();) ,the compilation works fine but after flashing while running the system crashes.

Do you have any inputs how to prevent crash.Thanks for your support.

Regards,
Neil

Hi,

Thanks for the example the problem is solved.

Regards.