CC1352P: How to Switch off external TCXO when system goes in StandBy mode

Hello Champions,

for power saving I would like to switch off TXCO when CC1352P goes in StandBy mode, and re-enable it when system wakes up.

I used this to register a callback

    Power_registerNotify(&rFSwitchPowerNotifyObj,
                       PowerCC26XX_ENTERING_STANDBY | PowerCC26XX_AWAKE_STANDBY,
                       (Power_NotifyFxn) extTCXOStatusCb, NULL);

On the Callback we manage the DIO_x status :

static uint8_t extTCXOStatusCb (uint8_t eventType, uint32_t *eventArg,
                                uint32_t *clientArg)
{
    if (eventType == PowerCC26XX_ENTERING_STANDBY)
    {
        Board_RF_TCXO_Off();
    }
    else if (eventType == PowerCC26XX_AWAKE_STANDBY)
    {
        Board_RF_TCXO_On();
    }
    // Notification handled successfully
    return Power_NOTIFYDONE;
}

This way is not working, CC1352P get reset each time TI-RTOS enters in STDBY . I think I'm switching off TCXO before System has really activated STDBY mode.

Have you any suggestion how I can reach my goal

Thank you,

Paolo