TM4C1294NCPDT: 3ca32tw

Hi Devendra,

 Please refer to the datasheet for details. Below is the excerpt. Please refer to the sleep_modes and hibernate examples in TivaWare library under <TivaWare_Installation>\examples\boards\ek_tm4c1294xl\

This is the function created  to enter into deep sleep mode but then also wake pin is not working Gpio pin is working but not every time ,sometime it works and  sometime not.

void going_to_sleep()

{

     sleep_init();

    // Enable Auto Clock Gating Control.

            SysCtlPeripheralClockGating(true);

// Set LDO to 0.90V in Deep-Sleep.

SysCtlLDODeepSleepSet(SYSCTL_LDO_0_90V);

// Set Flash & SRAM to Low Power in Deep-Sleep Mode.

SysCtlDeepSleepPowerSet(SYSCTL_FLASH_LOW_POWER | SYSCTL_SRAM_LOW_POWER);

#if(DEBUG)

{

DEBUG_PRINT_TIME();

DEBUG_PRINT((uint8_t *)"\t\t");

DEBUG_PRINT((uint8_t *)"Going to Sleep ");

DEBUG_PRINT((uint8_t *)"\r\n");

}

  #endif

delay1(10);

led_on();

while(GPIOPinRead(GPIO_PORTE_BASE,GPIO_PIN_2)==GPIO_PIN_2);  // Waits until camera is powered OFF

delay1(10);

SysCtlDeepSleep();

while(1)

{

#if(DEBUG)

{

DEBUG_PRINT_TIME();

DEBUG_PRINT((uint8_t *)"\t\t");

DEBUG_PRINT((uint8_t *)"Not entered in deep sleep mode ");

DEBUG_PRINT((uint8_t *)"\r\n");

}

  #endif

}

}

********************************************

here i am initiated deep sleep mode

void  sleep_init()

{

         SysCtlDeepSleepClockConfigSet(1, (SYSCTL_DSLP_OSC_INT | SYSCTL_DSLP_PIOSC_PD | SYSCTL_DSLP_OSC_EXT32 ));

 HibernateIntClear(HIBERNATE_INT_PIN_WAKE | HIBERNATE_INT_WR_COMPLETE | HIBERNATE_INT_RESET_WAKE);

SysCtlPeripheralDeepSleepEnable(SYSCTL_PERIPH_GPIOE);

      SysCtlPeripheralDeepSleepEnable(SYSCTL_PERIPH_GPIOD);

SysCtlPeripheralDeepSleepEnable(SYSCTL_PERIPH_UART3);

SysCtlPeripheralDeepSleepEnable(SYSCTL_PERIPH_HIBERNATE);

       HibernateEnableExpClk(freq);

HibernateClockConfig(HIBERNATE_OSC_LOWDRIVE);

HibernateRTCEnable();

 SysCtlPeripheralDeepSleepDisable( SYSCTL_PERIPH_ADC0   | SYSCTL_PERIPH_ADC1  |  SYSCTL_PERIPH_CAN0    | SYSCTL_PERIPH_CAN1      |

                      SYSCTL_PERIPH_CCM0    | SYSCTL_PERIPH_COMP0     |  SYSCTL_PERIPH_EEPROM0 | SYSCTL_PERIPH_EMAC0     |

                      SYSCTL_PERIPH_EPHY0   | SYSCTL_PERIPH_EPI0      |  SYSCTL_PERIPH_GPIOA   | SYSCTL_PERIPH_GPIOB     |

                      SYSCTL_PERIPH_GPIOC   | SYSCTL_PERIPH_GPIOF     | SYSCTL_PERIPH_GPIOG    | SYSCTL_PERIPH_GPIOH     |  

SYSCTL_PERIPH_GPIOJ   | SYSCTL_PERIPH_GPIOK     | SYSCTL_PERIPH_GPIOL    | SYSCTL_PERIPH_GPIOM     |

                    SYSCTL_PERIPH_GPION   | SYSCTL_PERIPH_GPIOR     | SYSCTL_PERIPH_GPIOS    |  SYSCTL_PERIPH_WTIMER4  |

                      SYSCTL_PERIPH_GPIOT   | SYSCTL_PERIPH_I2C0      | SYSCTL_PERIPH_I2C2     | SYSCTL_PERIPH_I2C3      |

                      SYSCTL_PERIPH_I2C4    | SYSCTL_PERIPH_I2C5      | SYSCTL_PERIPH_I2C6     | SYSCTL_PERIPH_I2C7      |

                      SYSCTL_PERIPH_I2C8    | SYSCTL_PERIPH_I2C9      | SYSCTL_PERIPH_LCD0     | SYSCTL_PERIPH_ONEWIRE0  |

                      SYSCTL_PERIPH_PWM0    | SYSCTL_PERIPH_PWM1      | SYSCTL_PERIPH_QEI0     | SYSCTL_PERIPH_QEI1      |

                      SYSCTL_PERIPH_SSI0    | SYSCTL_PERIPH_SSI1      | SYSCTL_PERIPH_SSI2     | SYSCTL_PERIPH_SSI3      |

                      SYSCTL_PERIPH_TIMER0  | SYSCTL_PERIPH_TIMER1    | SYSCTL_PERIPH_TIMER2   | SYSCTL_PERIPH_TIMER3    |

                      SYSCTL_PERIPH_TIMER4  | SYSCTL_PERIPH_TIMER5    | SYSCTL_PERIPH_TIMER6   | SYSCTL_PERIPH_TIMER7    |

                      SYSCTL_PERIPH_UART0   | SYSCTL_PERIPH_UART1     | SYSCTL_PERIPH_UART2    | SYSCTL_PERIPH_UART4     |

                      SYSCTL_PERIPH_UART5   | SYSCTL_PERIPH_UART6     | SYSCTL_PERIPH_UART7    |  SYSCTL_PERIPH_UDMA     |

SYSCTL_PERIPH_USB0    | SYSCTL_PERIPH_WDOG0     | SYSCTL_PERIPH_WDOG1    | SYSCTL_PERIPH_WTIMER0   |

SYSCTL_PERIPH_WTIMER1 | SYSCTL_PERIPH_WTIMER2   | SYSCTL_PERIPH_WTIMER3  | SYSCTL_PERIPH_WTIMER5 );

ptr_wake_up=ButtonIntHandler;

HibernateWakeSet( HIBERNATE_WAKE_PIN | HIBERNATE_WAKE_RTC | HIBERNATE_WAKE_RESET );

HibernateIntEnable(HIBERNATE_INT_PIN_WAKE | HIBERNATE_INT_RESET_WAKE);

HibernateIntRegister(ptr_wake_up );

 GPIOPinTypeGPIOInput(GPIO_PORTE_BASE, GPIO_PIN_2);

GPIOIntClear(GPIO_PORTE_BASE,GPIO_INT_PIN_2);

// GPIODirModeSet(GPIO_PORTE_BASE, GPIO_PIN_2,GPIO_DIR_MODE_IN);

// GPIOPadConfigSet(GPIO_PORTE_BASE, GPIO_PIN_2,GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_WAKE_HIGH);

GPIOIntTypeSet(GPIO_PORTE_BASE, GPIO_PIN_2,GPIO_HIGH_LEVEL);

 GPIOIntRegister(GPIO_PORTE_BASE,ptr_wake_up);

GPIOIntEnable(GPIO_PORTE_BASE,GPIO_INT_PIN_2);

IntMasterEnable();

}

************************************************************

This is my Interrupt handler  :-

void ButtonIntHandler()

{

   // Delay here on button push for simple debouncing.

   delay1(1);

 static uint32_t status1,Status;

Status = HibernateIntStatus(0);

if(1 == Status)

{

HibernateIntClear(Status);

}

  status1=GPIOIntStatus(GPIO_PORTE_BASE,0);

 if(1 == status1 )

{

GPIOIntClear(GPIO_PORTE_BASE,status1); // Clear the interrupts

}

 led_on();

 flag=1;

wakeup_flag=0;

wakeup_handle = 1;

 #if(DEBUG)

{

DEBUG_PRINT_TIME();

DEBUG_PRINT((uint8_t *)"\t\t");

DEBUG_PRINT((uint8_t *)"Wake from deep sleep ");

DEBUG_PRINT((uint8_t *)"\r\n");

}

  #endif

   IntMasterEnable();

 work_to_done();  

}

cb1_mobile said:

May we ask "from where did "3ca32tw" arise" - and what - if any - was its value in a "meaningless Subject Line?"

Indeed. It is hoped that the "LIKE Destroying" forum team would expend (some) effort in, "Advising posters that their Subject (i.e. their post's Headline) is a "Key Drawing Card" - and the "repetition of the MCU's id offers, "NO/ZERO INCENTIVE" to "Click" upon so "empty" a thread!

The addition of the cryptic "3ca xxx" - as you note - provides only further proof that "LIKE Destroyers" are WITHOUT a CLUE!