用最新库玩转智林STM32开发板(之七)-让开发板发出SOUND

用最新库玩转智林STM32开发板(之七)------让开发板发出SOUND

ddllxxrr 提问时间：2009-4-14 08:09 /

听说库又升级了哈,我的版本以是最新版,所以题目没改,我觉得ST这么升级下去对编程者没太大好处,大家都象智林老大,不用库算了.
唉,还得言归正传
智林板的喇叭接的是第TIM3的第3道,所以得编相应的程序.
#include // STM32F10x Library Definitions

const unsigned int MusicData[7] = {30592,27257,24297,22922,20408,18182,16194};
void DelayNuS(unsigned int i)
{
      unsigned char t = 0;
      for(;i>0;i--)
      {
            for(t=0;t0;i--)
      {
            DelayNuS(1000);
      }
}

void SetBellF(unsigned int SetV)
{
      TIM_OCInitTypeDef TIM_OCInitStructure;
      TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);

      TIM_TimeBaseInitStructure.TIM_Period = SetV;
      TIM_TimeBaseInitStructure.TIM_Prescaler = 0;
      TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
      TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
      TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStructure);
      TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
      TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
      TIM_OCInitStructure.TIM_Pulse = (SetV/2);
      TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
      TIM_OC3Init(TIM3, &TIM_OCInitStructure);
}

void Timer3Init(void)
{
      TIM_OCInitTypeDef TIM_OCInitStructure;
      TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
      RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);

      TIM_TimeBaseInitStructure.TIM_Period = 10000;
      TIM_TimeBaseInitStructure.TIM_Prescaler = 0;
      TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
      TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
      TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStructure);
      TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
      TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
      TIM_OCInitStructure.TIM_Pulse = 5000;
      TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
      TIM_OC3Init(TIM3, &TIM_OCInitStructure);
}
void Timer3OutEnable(void)
{
      GPIO_InitTypeDef GPIO_InitStructure;
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
      GPIO_Init(GPIOB, &GPIO_InitStructure);
}
void Timer3OutDisable(void)
{
      GPIO_InitTypeDef GPIO_InitStructure;
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
      GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
      GPIO_Init(GPIOB, &GPIO_InitStructure);
}
void Timer3Start(void)
{
      TIM_Cmd(TIM3, ENABLE);
}
void Timer3Stop(void)
{
      TIM_Cmd(TIM3, DISABLE);
}
void Timer3Test(void)
{
      Timer3Init();
  Timer3OutEnable();
      Timer3Start();
   while(1)
      {
            Timer3OutEnable();
            SetBellF(MusicData[0]);
            DelayNmS(400);
            SetBellF(MusicData[0]);
            DelayNmS(400);
            SetBellF(MusicData[4]);
            DelayNmS(400);
            SetBellF(MusicData[4]);
            DelayNmS(400);
            SetBellF(MusicData[5]);
            DelayNmS(400);
            SetBellF(MusicData[5]);
            DelayNmS(400);
            SetBellF(MusicData[4]);
            DelayNmS(400);
            DelayNmS(400);
            SetBellF(MusicData[3]);
            DelayNmS(400);
            SetBellF(MusicData[3]);
            DelayNmS(400);
            SetBellF(MusicData[2]);
            DelayNmS(400);
            SetBellF(MusicData[2]);
            DelayNmS(400);
            SetBellF(MusicData[1]);
            DelayNmS(400);
            SetBellF(MusicData[1]);
            DelayNmS(400);
            SetBellF(MusicData[0]);
            DelayNmS(400);
            DelayNmS(400);
            Timer3OutDisable();
            DelayNmS(1000);
      }

}