iar-

IAR_example_EasyARM8962.zip

/****************************************Copyright (c)****************************************************
**                            Guangzhou ZHIYUAN electronics Co.,LTD.
**                                      
**                                 http://www.embedtools.com
**
**--------------File Info---------------------------------------------------------------------------------
** File name:               hibernate.c
** Latest modified Date:    2007.09.16
** Latest Version:          v1.1
** Descriptions:            The hibernate function example template
**
**--------------------------------------------------------------------------------------------------------
** Created by:              Zhao shimin
** Created date:            2007.09.16
** Version:                 v1.0
** Descriptions:            The original version
**
**--------------------------------------------------------------------------------------------------------
** Modified by:             Kang qinhua
** Modified date:           2008.01.12
** Version:                 v1.1
** Descriptions:            
**
*********************************************************************************************************/

/*********************************************************************************************************
  系统库函数头文件
*********************************************************************************************************/
#include "hw_ints.h"
#include "hw_memmap.h"
#include "hw_types.h"
#include "gpio.h"
#include "sysctl.h"
#include "hibernate.h"
#include "interrupt.h"

#define   PIN1   GPIO_PIN_4                                             /*  PA4控制LED　　             */
#define   PIN2   GPIO_PIN_5                                             /*  PA5控制LED　　             */
#define   PINS   (PIN1 | PIN2)

#define  HIBCTL   (*(volatile unsigned long *) 0x400FC010)

/*********************************************************************************************************
** Function name:           HIBwake
** Descriptions:            用wake管脚唤醒中断服务程序，用于唤醒CPU
** input parameters:        NONE
** output parameters:       NONE
** Returned value:          NONE
** Created by:              Zhao shimin
** Created Date:            2007.09.16
**--------------------------------------------------------------------------------------------------------
** Modified by:             
** Modified date:           
**--------------------------------------------------------------------------------------------------------
*********************************************************************************************************/

void HIBwake (void)
{
    HIBCTL &= ~(1<<1);
    /*
     *  清除所有休眠中断标志
     */
    HibernateIntClear(HIBERNATE_INT_PIN_WAKE    | HIBERNATE_INT_LOW_BAT |
	                  HIBERNATE_INT_RTC_MATCH_0 | HIBERNATE_INT_RTC_MATCH_1);
    GPIOPinWrite(GPIO_PORTA_BASE, PIN2, ~PIN2);
}
/*********************************************************************************************************
** Function name:           main
** Descriptions:            主函数初始化休眠模块，使LED闪烁并进入休眠状态
** input parameters:        NONE
** output parameters:       NONE
** Returned value:          NONE
** Created by:              Zhao shimin
** Created Date:            2007.09.16
**--------------------------------------------------------------------------------------------------------
** Modified by:            
** Modified date:          
**--------------------------------------------------------------------------------------------------------
*********************************************************************************************************/
#define  HIBCTL   (*(volatile unsigned long *) 0x400FC010)
int main (void)
{
    unsigned long    i, k;

    SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE);                    /*  给休眠模块提供时钟          */
    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);                        /*  给GPIOA提供时钟             */

    GPIOPadConfigSet(GPIO_PORTA_BASE, PINS, GPIO_STRENGTH_2MA,
                     GPIO_PIN_TYPE_STD);                                /*  设置管脚为上拉驱动          */
    GPIODirModeSet(GPIO_PORTA_BASE, PINS, GPIO_DIR_MODE_OUT);           /*  设置管脚为输出              */
    HibernateEnableExpClk(4194304);                                     /*  使能休眠模块                */
    HibernateClockSelect(HIBERNATE_CLOCK_SEL_DIV128);                   /*  对输入时钟进行128分频       */
    HibernateWakeSet(HIBERNATE_WAKE_PIN);                               /*  设置由wake管脚唤醒          */
    
    for( i = 0 ;i < 20000; i++); 
    HibernateIntEnable(HIBERNATE_INT_PIN_WAKE);                         /*  使能wake管脚唤醒            */
    /*
     *  清除休眠模块的所有中断源的中断标志
     */
    HibernateIntClear(HIBERNATE_INT_PIN_WAKE    | HIBERNATE_INT_LOW_BAT |
                      HIBERNATE_INT_RTC_MATCH_0 | HIBERNATE_INT_RTC_MATCH_1);

    IntEnable(INT_HIBERNATE);                                           /*  允许休眠模块中断            */
    IntMasterEnable();                                                  /*  开放总中断                  */

    while (1)  {
	    for (k = 0; k < 16; k++) {
	        for (i = 0; i < 200000; i++) ;
            GPIOPinWrite(GPIO_PORTA_BASE, PIN1, ~PIN1);
            for (i = 0; i < 200000; i++);
            GPIOPinWrite(GPIO_PORTA_BASE, PIN1, PIN1);
        }
        HibernateRequest();  
                                                                        /*  使CPU进入休眠状态           */ 
        GPIOPinWrite(GPIO_PORTA_BASE, PIN2, PIN2);

   }

}
/*********************************************************************************************************
  END FILE
*********************************************************************************************************/