Tool/software: Code Composer Studio
I am trying Hibernation example in TM4C123GXL(TIVA C series) launchpad. Program works fine i.e. LED turns on indicating wake up condition for 4 seconds and turns off for 5 seconds indicating mcu entered into hibernate state.
MCU can be woken up by 2 methods
1. Through RTC interrupt
2. Hardware SW2 any time..
I am trying to do the same example by controlling through SW1 pin ..
is that possible ??
Thanks for your time
below is my code
#include <stdint.h>
#include <stdbool.h>
#include "utils/ustdlib.h"
#include "inc/hw_types.h"
#include "inc/hw_memmap.h"
#include "driverlib/sysctl.h"
#include "driverlib/pin_map.h"
#include "driverlib/debug.h"
#include "driverlib/hibernate.h"
#include "driverlib/gpio.h"
int main(void)
{
SysCtlClockSet(SYSCTL_SYSDIV_5|SYSCTL_USE_PLL|SYSCTL_XTAL_16MHZ|SYSCTL_OSC_MAIN);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE,GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3);
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3, 0x08);
SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE);
HibernateEnableExpClk(SysCtlClockGet());
HibernateGPIORetentionEnable();
SysCtlDelay(64000000);
HibernateRTCSet(0);
HibernateRTCEnable();
HibernateRTCMatchSet(0,5);
HibernateWakeSet(HIBERNATE_WAKE_PIN | HIBERNATE_WAKE_RTC);
GPIOPinWrite(GPIO_PORTF_BASE,GPIO_PIN_3, 0x00);
HibernateRequest();
while(1)
{
}
}
