Wakeup event S32k312

[sai-bodhanapu]

Hello @danielmartynek,  i am working on corestandby, can you please provide me the example for core standby, for me the wakeup does not work for corestandby mode.

Regards,

Sai Praveen Bodhanapu

[giraffe508 · Accepted solution]

Hello Sai Praveen Bodhanapu,

I understand you are working on core standby mode and facing issues with the wakeup event for the S32K312. Here's an example to help you implement core standby and configure the wakeup event:

   #include 'S32K312.h'   #include 'clocks_and_modes.h'
  void SIRC_Init(void) {       SCG->SIRCCSR = SCG_SIRCCSR_SIRCDIV(0) | SCG_SIRCCSR_SIRCLPEN_MASK | SCG_SIRCCSR_SIRCEN_MASK;   }
  void PORT_Init(void) {       PCC->PORTC = PCC_PORTC_CGC_MASK;       PORTC->PCR[12] = PORT_PCR_MUX(1) | PORT_PCR_PE_MASK | PORT_PCR_PS_MASK;   }
  int main(void) {       SIRC_Init();       PORT_Init();
      SMC->PMPROT = SMC_PMPROT_AVLLS_MASK;       SMC->PMCTRL = SMC_PMCTRL_STOPM(3);       SMC->STOPCTRL = SMC_STOPCTRL_PSTOPO(0) | SMC_STOPCTRL_LLSM(0);
      NVIC_EnableIRQ(PORTC_IRQn);       NVIC_SetPriority(PORTC_IRQn, 3);
      PORTC->PCR[12] |= PORT_PCR_IRQC(0xA);
      while (1) {           S32_NVIC->ICPR[1] = 1 << (44 % 32);           S32_SCB->SCR |= S32_SCB_SCR_SLEEPDEEP_MASK;           __asm('WFI');       }   }
  void PORTC_IRQHandler(void) {       if (PORTC->ISFR & (1 << 12)) {           PORTC->ISFR = (1 << 12);       }   }   

In this example, the S32K312 is configured to enter core standby mode using the 'WFI' instruction. The wakeup event is configured using the PORTC interrupt. The PORTC_IRQHandler() function is the interrupt service routine that will be executed when the wakeup event occurs.

Make sure to configure the NVIC (Nested Vectored Interrupt Controller) to enable the PORTC interrupt. 

[sai-bodhanapu]

Thank you @giraffee508, now its working.