CC2652R7: Disabling and enabling interrupts globally

We are not using osal_port. Where can I find the hal_mcu file? I did a search in the sdk folder. I could find it only in the ble5stack folder or ti154stack folder. Do I need to include these stacks in the code mandatorily?

Or, is there any other way to include the file?

Are you using a radio stack?  It will be included in these projects by default.  It's ultimately a call to HwiP_disable (HwiP_tirtos) or Hwi_disable (Hwi)

/* Enter critical section */
#define HAL_ENTER_CRITICAL_SECTION(x)                   \
  do { x = HwiP_disable(); } while (0)

/* Exit critical section */
#define HAL_EXIT_CRITICAL_SECTION(x)                    \
  do { HwiP_restore(x); } while (0)

BLE5-Stack uses an Icall implementation

/* For now critical sections completely disable hardware interrupts
 * because they are used from ISRs in MAC layer implementation.
 * If MAC layer implementation changes, critical section
 * implementation may change to reduce overall interrupt latency.
 */
/* Enter critical section implementation. See header file for comment. */
ICall_CSState ICall_enterCSImpl(void)
{
  ICall_CSStateUnion cu;
  cu.each.swikey = (uint_least16_t) Swi_disable();
  cu.each.hwikey = (uint_least16_t) Hwi_disable();
  return cu.state;
}

/* See header file for comment */
ICall_EnterCS ICall_enterCriticalSection = ICall_enterCSImpl;

/* leave critical section implementation. See header file for comment */
void ICall_leaveCSImpl(ICall_CSState key)
{
  ICall_CSStateUnion *cu = (ICall_CSStateUnion *) &key;
  Hwi_restore((UInt) cu->each.hwikey);
  Swi_restore((UInt) cu->each.swikey);
}

You can find more information in the TI-RTOS7 Kernel documentation and SimpleLink MCU SDK User's Guide.  I must caution about critical section usage as this could block other application activity from being completed in the time expected.

Regards,
Ryan

Thank you and I understand the problem associated with it. Can I use semaphores before and after the critical section?

Use of semaphores around, but not contained within, critical sections is allowed.  Once again, please refer to the TI-RTOS7 and SYS/BIOS documentation.

Regards,
Ryan