how can i implement UART wake up from halt mode ? please give me suggestion

[DJosh.0]

I have development board of STM8L152R8. I want process like after uart interrupt comes controller should exit from halt mode . and after completing the routine it goes in halt mode again.

I didn't find example regarding this subject.

please help me to find the solution

thanks and regards

Deoyani

[DJosh.0]

And after changing it to GPIO_Mode_In_PU_IT I am getting the result as you said .

Thank you

[WilkoL]

:thumbs_up:

[DJosh.0]

void EXTI_setup(void)

{

   disableInterrupts();

   GPIO_Init(GPIOC, GPIO_Pin_0, GPIO_Mode_In_PU_IT);

   EXTI_DeInit();

   EXTI_ClearITPendingBit(EXTI_IT_Pin0);            //to be absolutely sure

   EXTI_SetPinSensitivity(EXTI_Pin_0, EXTI_Trigger_Rising_Falling);

   enableInterrupts();

}

/**

 * @brief external interrput handler .

        ResetRegistration Switch Interrupt handler   

 * @param None

 * @retval None

*/

 void ButtonIntHandler (void)

 {

      if (EXTI_GetITStatus(EXTI_IT_Pin0))

      {

       exti_signal = 1;

         ResetRegistration();

      }

      else if (EXTI_GetITStatus(EXTI_IT_Pin1))

      {

       //boollocklocked=IsLock();         

         //ui8PreviousState=ui8CurrentState;

         //ui8CurrentState=STATE_MOTOR_CONTROL;

      }

      EXTI_ClearITPendingBit(EXTI_IT_Pin0);

      EXTI_ClearITPendingBit(EXTI_IT_Pin1);

 }

Is this above code correct for 2 exti interrupt ,

With this code I am getting interrupt correctly for sometime , and for sometime , not getting interrupt .

Am I missed out something in configuring or clearing Interrupt ?

Please help me to resolve this problem.

Thanks and Regards

Deoyani

[WilkoL]

"Is this above code correct for 2 exti interrupt"

No.

You seem to want to use two GPIO with EXTI but you configure only one.

[DJosh.0]

Sorry I have not share you the configuration of 2nd GPIO , But I have configure in another file .

but my handler is same.

Is this the problem?

thanks and regards

Deoyani

[WilkoL]

"Is this the problem?"

Not if that code is called. Try single stepping and see where / when it does or doesn't work.