main.c

基于KEIL RVMDK开发环境的和基于ST公司的STM32系列MCU在音频方面的应用源代码.

/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name          : main.c
* Author             : MCD Application Team
* Version            : V1.1.1
* Date               : 06/13/2008
* Description        : Main program body
********************************************************************************
* 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.
*******************************************************************************/

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_tim.h"
#include "stm32f10x_dac.h"
#include "project.h"
#include <stdio.h>

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
static vu32 TimingDelay = 0;
static vu32 LedShowStatus = 0;
static volatile ErrorStatus HSEStartUpStatus = SUCCESS;
static vu32 SELStatus = 0;

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
void Demo_Init(void);
void InterruptConfig(void);
void GPIO_Config(void);

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

  /* Initialize the Demo */
  Demo_Init();

  while (1)
  {

	  WavePlayer_StartSpeaker();

  } 
}

/*******************************************************************************
* Function Name  : Demo_Init
* Description    : Initializes the demonstration application.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void Demo_Init(void)
{
  /* SYSCLK, HCLK, PCLK2 and PCLK1 configuration -----------------------------*/   
  /* RCC system reset(for debug purpose) */
  RCC_DeInit();

  /* Enable HSE */
  RCC_HSEConfig(RCC_HSE_ON);

  /* Wait till HSE is ready */
  HSEStartUpStatus = RCC_WaitForHSEStartUp();

  if(HSEStartUpStatus == SUCCESS)
  {
    /* Enable Prefetch Buffer */
    FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);

    /* Flash 2 wait state */
    FLASH_SetLatency(FLASH_Latency_2);
    
    /* HCLK = SYSCLK */
    RCC_HCLKConfig(RCC_SYSCLK_Div1); 
  
    /* PCLK2 = HCLK */
    RCC_PCLK2Config(RCC_HCLK_Div1); 
 
    /* PCLK1 = HCLK/2 */
    RCC_PCLK1Config(RCC_HCLK_Div2);
 
    /* PLLCLK = 8MHz * 9 = 72 MHz */
    RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
 
    /* Enable PLL */ 
    RCC_PLLCmd(ENABLE);
 
    /* Wait till PLL is ready */
    while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
    {
    }
 
    /* Select PLL as system clock source */
    RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
 
    /* Wait till PLL is used as system clock source */
    while(RCC_GetSYSCLKSource() != 0x08)
    {
    }
  }

  /* Enable GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, GPIOF, GPIOG and AFIO clocks */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |RCC_APB2Periph_GPIOC 
         | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOE | RCC_APB2Periph_GPIOF | RCC_APB2Periph_GPIOG 
         | RCC_APB2Periph_AFIO, ENABLE);
  
  /* TIM1 Periph clock enable */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
 
/*------------------- Resources Initialization -----------------------------*/
  /* GPIO Configuration */
  GPIO_Config();

  /* Interrupt Configuration */
  InterruptConfig();

  /* Configure the systick */    
  SysTick_Config();
  /* Initialize the LCD */
  STM3210E_LCD_Init();

/*------------------- Drivers Initialization -------------------------------*/


  
  /* If HSE is not detected at program startup */
  if(HSEStartUpStatus == ERROR)
  {
    /* Generate NMI exception */
    NVIC_SetSystemHandlerPendingBit(SystemHandler_NMI);
  }  
   
  /* Initialize the SPI FLASH driver */
  SPI_FLASH_Init();

}

/*******************************************************************************
* Function Name  : InterruptConfig
* Description    : Configures the used IRQ Channels and sets their priority.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void InterruptConfig(void)
{ 

  /* Deinitializes the NVIC */
  NVIC_DeInit();

  /* Set the Vector Table base address at 0x08000000 */
  NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x00);

  /* Configure the Priority Group to 2 bits */
  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);

  /* Configure the SysTick handler priority */
  NVIC_SystemHandlerPriorityConfig(SystemHandler_SysTick, 0, 0);
  
}

/*******************************************************************************
* Function Name  : SysTick_Config
* Description    : Configure a SysTick Base time to 10 ms.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void SysTick_Config(void)
{
  /* Configure HCLK clock as SysTick clock source */
  SysTick_CLKSourceConfig(SysTick_CLKSource_HCLK);
 
  /* SysTick interrupt each 100 Hz with HCLK equal to 72MHz */
  SysTick_SetReload(720000);

  /* Enable the SysTick Interrupt */
  SysTick_ITConfig(ENABLE);
}



/*******************************************************************************
* Function Name  : GPIO_Config
* Description    : Configures the different GPIO ports pins.
* Input          : None
* Output         : None
* Return         : None
*******************************************************************************/
void GPIO_Config(void)
{
  GPIO_InitTypeDef GPIO_InitStructure;

  /* Configure PG.07, PG.08, PG.13, PG.14 and PG.15 as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7 | GPIO_Pin_8 | GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOG, &GPIO_InitStructure);

  /* Configure PD.03 as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOD, &GPIO_InitStructure);

  /* RIGHT Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOG, GPIO_PinSource13);

  /* LEFT Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOG, GPIO_PinSource14);

  /* DOWN Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOD, GPIO_PinSource3);

  /* UP Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOG, GPIO_PinSource15);

  /* SEL Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOG, GPIO_PinSource7);

  /* KEY Button */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOG, GPIO_PinSource8);
}

/*******************************************************************************
* Function Name  : Delay
* Description    : Inserts a delay time.
* Input          : nCount: specifies the delay time length (time base 10 ms).
* Output         : None
* Return         : None
*******************************************************************************/
void Delay(u32 nCount)
{
  TimingDelay = nCount;

  /* Enable the SysTick Counter */
  SysTick_CounterCmd(SysTick_Counter_Enable);
  
  while(TimingDelay != 0)
  {
  }

  /* Disable the SysTick Counter */
  SysTick_CounterCmd(SysTick_Counter_Disable);

  /* Clear the SysTick Counter */
  SysTick_CounterCmd(SysTick_Counter_Clear);
}



/*******************************************************************************
* Function Name  : Decrement_TimingDelay
* Description    : Decrements the TimingDelay variable.
* Input          : None
* Output         : TimingDelay
* Return         : None
*******************************************************************************/
void Decrement_TimingDelay(void)
{
  if (TimingDelay != 0x00)
  {
    TimingDelay--;
  }
}

/*******************************************************************************
* Function Name  : Set_SELStatus
* Description    : Sets the SELStatus variable.
* Input          : None
* Output         : SELStatus
* Return         : None
*******************************************************************************/
void Set_SELStatus(void)
{
  SELStatus = 1;
}





/*******************************************************************************
* Function Name  : Get_HSEStartUpStatus
* Description    : Returns the HSE StartUp Status.
* Input          : None
* Output         : None
* Return         : HSE StartUp Status.
*******************************************************************************/
ErrorStatus Get_HSEStartUpStatus(void)
{
  return (HSEStartUpStatus);
}



#ifdef  DEBUG
/*******************************************************************************
* Function Name  : assert_failed
* Description    : Reports the name of the source file and the source line number
*                  where the assert error has occurred.
* Input          : - file: pointer to the source file name
*                  - line: assert 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 2008 STMicroelectronics *****END OF FILE****/