值班电路 脉冲方波检测

//各个指示灯的说明
P2.0->LED8 ------ 输出20ms的方波信号，输出正确说明AD的采样间隔正确
P2.1->LED7 ------ P6.0的输入小于1.6V就灭，大于1.6V就亮
P2.2->LED6 ------ 检测一组数据的状态：是1就灭，是0就亮
P2.3->LED5 ------ 保留位，指示TIMERA OUT1的输出，相当于采样的时钟
P2.4->LED4 ------

#include 
 #include 
 #define Num_of_Results 200 //测试用的LED8的周期大概是20ms
 const int DATA[6]={1,1,0,0,1,1}; //标准状态数组 表示20ms（高电平）,20ms（低电平）,20ms（高电平）
 
 
int nADC_BUF_Temp[Num_of_Results] = {0};
 int nADC_BUF[Num_of_Results] = {0};
 int nBuf_Flow_Flag = 0;
 int nCount = 0;
 int nStatus = 0;
 int number = 0;
 
 
void Init_clk(void);
 void Init_timer(void);
 void Init_ADC(void);
 void WeakUp(void);
 void Status(void);
 
 
//********************主函数***************************
 void main(void)
 {
 WDTCTL =WDTPW + WDTHOLD; //关闭看门狗
 
 
//P1SEL |= (BIT2+BIT6); //测试TAOUT的输出
 //P1DIR |= (BIT2+BIT6);
 //P2OUT |= 0xf0; //显示LED
 //P5SEL |= BIT5+BIT4; //测试系统时钟
 //P5DIR |= BIT5+BIT4;
 P2DIR = 0xFF;
 P2OUT = 0xFF; //最初所有LED都灭
 
 
Init_clk();
Init_ADC();
Init_timer();
ADC12CTL0 |= ENC;            //使能转换
_BIS_SR(GIE);                //使能全局中断
 
 
while(1)
 {
 if(1 == nBuf_Flow_Flag)
 {
 nBuf_Flow_Flag = 0;
 Status();//当前这组数据状态为1，即有超过一半的数据大于3V，LED6亮
 WeakUp();//唤醒判断
 if(6 == number)
 {
 number = 0;
 P2OUT ^= 0xF0;
 }
 }
 }//while
 }//main
 
 
void Init_timer(void)
 {
 P2SEL |= BIT3;
 P2DIR |= BIT3;
 //CCTL1 = CCIE;
 CCR0 = 50;
 CCR1 = 25;
 TACCTL1 = OUTMOD_3;
 TACTL = TASSEL_2 | MC_1 | TACLR; //SMCLK
 }
 
 
void Init_clk(void)
 {
 unsigned int i;
 
 
BCSCTL1=0X00; //将寄存器BCSCTL1的内容清零
 //XT2开启,LFTX1工作在低频,ACLK的分频因子为1
 do
 {
 IFG1 &=~OFIFG; //清除OSCFault标志位
 for(i=0x20;i>0;i--); //IFG1中断标志寄存器1
 }
 while((IFG1 & OFIFG)== OFIFG);//如果OSCFault=1
 
 
BCSCTL2=0X00;
BCSCTL2 += SELM_2;            //MCLK的时钟源为TX2CLK,分频因子为1  8MHZ
BCSCTL2 += SELS +DIVS_3;      //SMCLK的时钟源为TX2CLK,分频因子为8  1MHZ
return;
 
 
}
 
 
void Init_ADC(void)
 {
 P6SEL |= 0x01; // 使能ADC通道P6.0即A0
 ADC12CTL0 = ADC12ON+SHT0_1; // 打开ADC，设置采样时间
 ADC12CTL1 = SHP+CONSEQ_2+SHS_1; // 使用采样定时器
 //ADC12CTL1 = ADC12SSEL_3+ADC12DIV_0; //ADC内核时钟SMCLK 1MHZ
 //之前一直出错是因为这一句 为什么啊 仍然没想通 T_T 泪奔....
 ADC12MCTL0 = INCH_0;
 ADC12IE = 0x0001; // 使能中断
 }
 
 
void Status(void)
 {
 nCount = 0;
 for(int i=0; i {
 if(nADC_BUF[i]>3722)
 nCount ++;
 }
 if(nCount > Num_of_Results/2)
 {
 nStatus = 1;
 P2OUT |= BIT2;//LED 灭
 }
 else
 {
 P2OUT &= ~BIT2;
 nStatus = 0;
 }
 }
 
 
void WeakUp(void)
 {
 switch (number)
 {
 case 0:
 if(nStatus == DATA[0])
 number = 1;
 else
 number = 0;
 break;
 case 1:
 if(nStatus == DATA[1])
 number = 2;
 else
 number = 0;
 break;
 case 2:
 if(nStatus == DATA[2])
 number = 3;
 else
 number = 2;
 break;
 case 3:
 if(nStatus == DATA[3])
 number = 4;
 else
 number = 1;
 break;
 case 4:
 if(nStatus == DATA[4])
 number = 5;
 else
 number = 0;
 break;
 case 5:
 if(nStatus == DATA[5])
 number = 6;
 else
 number = 1;
 break;
 }
 }
 
 
pragma vector=ADC_VECTOR
 
 
__interrupt void ADC12ISR (void)
 {
 //************看当前的值是否大于1.6V***********
 if (ADC12MEM0 < 0x7FF)
 P2OUT |= BIT1; //小于1.6V就灭，顺时针
 else
 P2OUT &= ~BIT1;
 //****************转移AD数据到BUF*************
 static unsigned int index = 0;
 nADC_BUF_Temp[index++] = ADC12MEM0;
 if (index == Num_of_Results)
 {
 index = 0;
 nBuf_Flow_Flag = 1;
 for(int i = 0; i< Num_of_Results; i++)
 nADC_BUF[i] = nADC_BUF_Temp[i];
 P2OUT ^= BIT0;
 }
 }