RTOS/CC2630: SysCtrlResetSourceGet seems to return wrong reset source

Tool/software: TI-RTOS

Hello,

i have Z-Stack 1.2.2a on top of Ti-RTOS running on a CC2630 Device. After BIOS_start(); i execute the following piece of code. No zigbee stuff is done at that point, only the following tirtos functions.

            /* Get the reason for reset */
            uint32_t rSrc = SysCtrlResetSourceGet();
            
            if(rSrc == RSTSRC_WAKEUP_FROM_SHUTDOWN) {
              
                Board_Led_control(board_led_type_LEDGREEN, board_led_state_BLINK);
              
                zstack_sysResetReq_t pReq;
                pReq.type = zstack_ResetTypes_DEVICE;
                pReq.newNwkState = false;
                Zstackapi_sysResetReq(zswEntity, &pReq);
            }
            else{
                PIN_setConfig(keyPinHandleSOS, PINCC26XX_BM_WAKEUP, Board_KEY_SELECT | PINCC26XX_WAKEUP_NEGEDGE);
                Power_shutdown(NULL);
            }

On power up the device correctly enters the else-path and goes to shutdown. After i press the button the LED blinks and resets and apparently enters the if-path again (infinitely).

I assumed that sysReset would issue a soft-reset as the following api function suggests:

static bool processSysResetReq( ICall_EntityID srcEntityID, void *pMsg )
{
  zstackmsg_sysResetReq_t *pReq = (zstackmsg_sysResetReq_t *)pMsg;

  if ( pReq->pReq )
  {
    if(pReq->pReq->newNwkState)
    {
      zgWriteStartupOptions( ZG_STARTUP_SET, 
                         ZCD_STARTOPT_DEFAULT_NETWORK_STATE | ZCD_STARTOPT_DEFAULT_CONFIG_STATE);
      
    }
--->SystemResetSoft();
    pReq->hdr.status = zstack_ZStatusValues_ZSuccess;
  }
  else
  {
    pReq->hdr.status = zstack_ZStatusValues_ZInvalidParameter;
  }

  return (TRUE);
}

Following SystemResetSoft() eventually leads to the following macro:

*((uint32 *)0x40082270) = 1;

Based on this i would assume the next time i use SysCtrlResetSourceGet(); after calling reset would return anthing but RSTSRC_WAKEUP_FROM_SHUTDOWN, enter the else-path and go to shutdown again.

Do i somehow need to clear any register before i reset my device to clear the reset source or something?

kind regards,

stephanie