main.c

STM8示例程序

/**
  ******************************************************************************
  * @file AWU_ActiveHaltMode\main.c
  * @brief This file contains the main function for AWU Active Halt Mode example.
  * @author STMicroelectronics - MCD Application Team
  * @version V1.0.1
  * @date 09/22/2008
  ******************************************************************************
  *
  * THE PRESENT FIRMWARE 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 FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  * 
  * <h2><center>&copy; COPYRIGHT 2008 STMicroelectronics</center></h2>
  * @image html logo.bmp
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "stm8s_lib.h"
#include "mono_lcd.h"

/**
  * @addtogroup AWU_ActiveHaltMode
  * @{
  */

/* Private typedef -----------------------------------------------------------*/

/* Private define ------------------------------------------------------------*/

/* Evalboard I/Os configuration */

#define LEDS_PORT (GPIOH)
#define LED1_PIN  (GPIO_PIN_3)
#define LED2_PIN  (GPIO_PIN_2)
#define LED3_PIN  (GPIO_PIN_1)
#define LED4_PIN  (GPIO_PIN_0)

#define BUTTON_PORT (GPIOC)
#define BUTTON_PIN  (GPIO_PIN_0)

/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/

/* Private function prototypes -----------------------------------------------*/
void Delay (u16 nCount);

/* Private functions ---------------------------------------------------------*/

void Delay(u16 nCount)
{
    /* Decrement nCount value */
    while (nCount != 0)
    {
        nCount--;
    }
}

/* Global variables ----------------------------------------------------------*/
bool ButtonPressed = FALSE;

/* Public functions ----------------------------------------------------------*/

/**
  * @brief Example main entry point.
  * @par Parameters:
  * None
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Library functions called:
  * - GPIO_Init()
  * - EXTI_SetExtIntSensitivity()
  * - AWU_Init()
	* - SPI_DeInit()
	* - SPI_Init()
	* - SPI_Cmd()
  * - CLK_HSIPrescalerConfig()
  * - GPIO_ReadInputData()
  * - GPIO_WriteReverse()
  * - GPIO_WriteLow()
  */
void main(void)
{
    u16 i;
    u16 j;
    /* Initialization of the clock */
    /* Fcpu output on MCO pin */
    CLK_CCOConfig(CLK_OUTPUT_CPU);

    /* Clock divider to HSI/1 */
    CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);

    /* Initialization of I/Os in Output Mode */
    GPIO_Init(LEDS_PORT, (LED1_PIN | LED2_PIN | LED3_PIN | LED4_PIN), GPIO_MODE_OUT_PP_LOW_FAST);

    /* Initialization of I/O in Input Mode with Interrupt */
    GPIO_Init(BUTTON_PORT, BUTTON_PIN, GPIO_MODE_IN_FL_IT);

    /* Initialization of the Interrupt sensitivity */
    EXTI_SetExtIntSensitivity(EXTI_PORT_GPIOC, EXTI_SENSITIVITY_FALL_ONLY);

    /* Initialization of AWU */
    /* The delay corresponds to the time we will stay in Halt mode */
    AWU_Init(AWU_TIMEBASE_12S);

    /* Initialize SPI for LCD */
    SPI_DeInit();
    SPI_Init(SPI_FIRSTBIT_MSB, SPI_BAUDRATEPRESCALER_128, SPI_MODE_MASTER, SPI_CLOCKPOLARITY_HIGH, SPI_CLOCKPHASE_2EDGE, SPI_DATADIRECTION_1LINE_TX, SPI_NSS_SOFT, 0x07);
    SPI_Cmd(ENABLE);

    /* Initialize LCD */
    LCD_Init();

    /* Clear LCD lines */
    LCD_Clear();

    LCD_Backlight(ENABLE);

    LCD_PrintString(LCD_LINE1, ENABLE, DISABLE, "  Running...");
    LCD_PrintString(LCD_LINE2, ENABLE, DISABLE, "   Press Key");

    /* Enable general interrupts */
    enableInterrupts();

    while (1)
    {

        /* Check button status */
        if (ButtonPressed == TRUE) /* Button is pressed */
        {

            ButtonPressed = FALSE;

            LCD_Clear();
            LCD_PrintString(LCD_LINE1, ENABLE, DISABLE, " Preparing to");
            LCD_PrintString(LCD_LINE2, ENABLE, DISABLE, "    sleep...");

            /* LEDs toggle quickly */
            for (j = 0; j < 20; j++)
            {
                GPIO_WriteReverse(LEDS_PORT, (LED1_PIN | LED2_PIN | LED3_PIN | LED4_PIN));
                for (i = 0; i < 2; i++)
                {
                    Delay((u16)60000);
                }
            }

            /* Switch LEDs OFF */
            GPIO_WriteLow(LEDS_PORT, (LED1_PIN | LED2_PIN | LED3_PIN | LED4_PIN));
            LCD_Clear();
            LCD_Backlight(DISABLE);

            halt(); /* Program halted */

            /* Program re-starts here, thanks to AWU */
            LCD_Backlight(ENABLE);
            LCD_Clear();
            LCD_PrintString(LCD_LINE1, ENABLE, DISABLE, "  Running...");
            LCD_PrintString(LCD_LINE2, ENABLE, DISABLE, "   Press Key");

        }
        else
        {
            /* Toggle LEDs slowly */
            GPIO_WriteReverse(LEDS_PORT, (LED1_PIN | LED2_PIN | LED3_PIN | LED4_PIN));
            for (i = 0; i < 15; i++)
            {
                Delay((u16)60000);
            }
        }

    }

}

/**
  * @brief Reports the name of the source file and the source line number where
  * the assert error has occurred.
  * 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)
  * @retval void None
  * @par Required preconditions:
  * None
  * @par Called functions:
  * None
  */
#ifdef FULL_ASSERT
void assert_failed(u8 *file, u16 line)
#else
void assert_failed(void)
#endif
{
  /* Add your own code to manage an assert error */
  /* Infinite loop */
  while (1)
  {
  }
}

/**
  * @}
  */

/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/