main.c

STM32的低功耗例程

/******************** (C) COPYRIGHT 2007 STMicroelectronics ********************
* File Name          : main.c
* Author             : MCD Application Team
* Version            : V1.0
* Date               : 10/10/2007
* Description        : Main program body.
********************************************************************************
* THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"
#include "hw_config.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/

/* Define the Low power mode*/
#define SLEEP

//#define STOP_Regulator_ON
//#define STOP_Regulator_LowPower

//#define STANDBY

/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
void Delay(vu32 nCount);

/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name  : main
* Description    : Main program.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
  debug();
#endif
   
  /* Clock configuration */
  RCC_Configuration();

  /* Enable PWR and BKP clock */
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);

  /* NVIC configuration */
  NVIC_Configuration();
  
/********************************* SLEEP MODE *********************************/
#ifdef SLEEP 
  
  /* Configure the GPIO PC0.6 */
  GPIO_Configuration();
   
  /* Config the EXTI to wake up from SLEEP Mode */
  EXTI_Configuration();
  
  /* Reset the PC0.6 */
  GPIOC->BRR = (u32)GPIO_Pin_6;
  
  #ifdef Entry_WFE
  
  /* Mode: SLEEP + Entry with WFE*/
  __WFE(); 
  
  /* Set the PC0.6 */
  GPIOC->BSRR = (u32)GPIO_Pin_6; 
  #endif 
   
  #ifdef Entry_WFI
  /* Mode: SLEEP + Entry with WFI*/
  __WFI(); 
  #endif
  
#endif /* End of SLEEP test */
  
/********************************* STOP MODE **********************************/  
#if defined (STOP_Regulator_ON) || defined (STOP_Regulator_LowPower)
  
  /* Configure the GPIO PC0.6 */
  GPIO_Configuration();
  
  /* Config the EXTI to wake up from STOP Mode */
  EXTI_Configuration();
  
  /* Desable the SRAM and FLITF clock in Stop mode */ 
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_SRAM|RCC_AHBPeriph_FLITF, DISABLE);
    
    
  /* Reset the PC0.6 */
  GPIOC->BRR = (u32)GPIO_Pin_6;
  
  /* Request to enter STOP mode with regulator ON */
  #ifdef STOP_Regulator_ON
  
    #ifdef Entry_WFE
    /* Mode: STOP + Regulator in ON + Entry with WFE*/
    PWR_EnterSTOPMode(PWR_Regulator_ON, PWR_STOPEntry_WFE);
    
    /* Set the port PC.06 to 1 */
    GPIOC->BSRR = (u32)GPIO_Pin_6;
    
    #endif 
   
    #ifdef Entry_WFI
    /* Mode: STOP + Regulator in ON + Entry with WFI*/
    PWR_EnterSTOPMode(PWR_Regulator_ON, PWR_STOPEntry_WFI);
    #endif 
  
  #endif /*STOP Mode with regulator ON*/
  
  /* Request to enter STOP mode with regulator in low power mode */
  #ifdef STOP_Regulator_LowPower
  
    #ifdef Entry_WFE
    /* Mode: STOP + Regulator in low power mode + Entry with WFE*/ 
    PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFE);
    
    /* Set the port PC.06 to 1 */
    GPIOC->BSRR = (u32)GPIO_Pin_6;
    #endif
  
    #ifdef Entry_WFI
    /* Mode: STOP + Regulator in low power mode + Entry with WFI*/ 
    PWR_EnterSTOPMode(PWR_Regulator_LowPower, PWR_STOPEntry_WFI);
    #endif  
  
   #endif /* Stop Mode with Regulator in low power mode */

#endif /* End of STOP test */   

    
/****************************** STANDBY MODE **********************************/    
#ifdef STANDBY
    
  /* Enable WKUP pin */
  PWR_WakeUpPinCmd(ENABLE);  
  
  /* Insert a delay */
  Delay(0xFFFF);

  /* Reset the PC0.6 */
  GPIOC->BRR = (u32)GPIO_Pin_6;

  /* Request to enter STANDBY mode */
  PWR_EnterSTANDBYMode();
#endif  /* End of STANDBY test */
  
  while(1)
  {
    /* Infinite loop*/
  }

}
/*******************************************************************************
* Function Name  : Delay
* Description    : Inserts a delay time.
* Input          : nCount: specifies the delay time length.
* Output         : None
* Return         : None
*******************************************************************************/
void Delay(vu32 nCount)
{
  for(; nCount != 0; nCount--);
}


#ifdef  DEBUG
/*******************************************************************************
* Function Name  : assert_failed
* Description    : Reports the name of the source file and the source line number
*                  where the assert_param error has occurred.
* Input          : - file: pointer to the source file name
*                  - line: assert_param error line source number
* Output         : None
* Return         : None
*******************************************************************************/
void assert_failed(u8* file, u32 line)
{ 
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {
  }
}
#endif

/******************* (C) COPYRIGHT 2007 STMicroelectronics *****END OF FILE****/