A problem about hibernate of TM4C123GE6PZ/my own board

Hi Yuanjin,

     Attach your c files here. So, others can see the bigger picture. I notice you use functions that are not mentioned in the Peripherals Library Users Guide. Such as HibRTCEnable(). Also, you can review the hibernate implementation at the qs-logger example program.

-kel

 Hello  ,Markel Robregado

My  code is put below.

#include "hw_types.h"
#include "hw_memmap.h"
#include "hw_nvic.h"
#include "hw_ints.h"
#include "rom.h"
#include "sysctl.h"
#include "interrupt.h"
#include "fpu.h"
#include "pin_map.h"

#include "hibernate.h"

#define  SysCtlPeriEnable       SysCtlPeripheralEnable
#define  SysCtlPeriDisable      SysCtlPeripheralDisable
#define  GPIOPinTypeIn          GPIOPinTypeGPIOInput
#define  GPIOPinTypeOut         GPIOPinTypeGPIOOutput
#define  HibIsActive            HibernateIsActive
#define  HibEnable()            HibernateEnableExpClk(SysCtlClockGet())
#define  HibClockSelect         HibernateClockSelect
#define  HibWakeSet             HibernateWakeSet
#define  HibRequest             HibernateRequest
#define  HibRTCSet              HibernateRTCSet
#define  HibRTCGet              HibernateRTCGet
#define  HibRTCMatchSet        HibernateRTCMatchSet
#define  HibRTCEnable           HibernateRTCEnable
#define  HibIntClear            HibernateIntClear
 void RTC_Init(void)
{     

    SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE;

    SysCtlDelay(1 *(SysCtlClockGet()));       

    HibernateEnableExpClk(SysCtlClockGet());   

    SysCtlDelay(25 *(12000000UL / 1000));     

    HibWakeSet(HIBERNATE_WAKE_RTC);
    HibRTCSet(35920UL);
    SysCtlDelay(50 *(12000000UL / 1000)); 
    HibRTCEnable();                      

 }      

int aa=0;

  void main(void)
{    FPUEnable();
     FPULazyStackingEnable();
    SysCtlClockSet(SYSCTL_SYSDIV_10 | SYSCTL_USE_PLL | SYSCTL_XTAL_12MHZ| SYSCTL_OSC_MAIN);
    sysclk = SysCtlClockGet();          

 SysCtlDelay(2000000);
    RTC_Init();  
 
                            
  while(1)
   { 

 aa=HibernateRTCGet(); }

}       The code can't go through  HibernateEnableExpClk(SysCtlClockGet()). When I eliminate HibernateEnableExpClk(SysCtlClockGet()),the code can continue ,but the number of aa is 0.    The  input of 32.768KHz  crystal is -0.1~0.1V ,but  I can't see the other side of the crystal  by oscilloscope.  Thank you!

the problem

Hi Yuanjin,

     Maybe this below. You are missing a close parenthesis ")".

     SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE;

-kel