MPS430串口程序，配合M430F149调试不成功，求大神指教-阿信509的回答

MPS430串口程序，配合M430F149调试不成功，求大神指教

2019-07-15 16:12发布

程序后半段红 {MOD}字体部分总是调试不成功，貌似到了看门狗那块就不执行了，问题出在哪了呢？？？求大神指教
#include <MSP430x14x.h>
unsigned char temp[17]={0}; //接收存储器
unsigned char sendstr[9]={0x01,0x03,0x04,0x11,0x22,0x33,0x44,0x00,0x00}; //待发送数据， CRC要等待发送时填写
unsigned char usartcount=0; //串口接收数据个数，仅用于串口中断程序

unsigned int c[9],c1[9];    //存放一次采集中的9对数据
unsigned int A=0, B=0;
unsigned int a=0;
unsigned int Binted=0,Ainted=0;

unsigned int m=0;
unsigned int thereData=0;

unsigned int ta[50],tb[50]; //50次采集数据的数据缓冲区
unsigned int pt=0;          //数据缓冲区指针
unsigned long int suma=0,sumb=0; //缓冲区数据和

unsigned int midle(unsigned int *a,unsigned int n);

/*用于crc校验的两个数组*/
static unsigned char auchCRCHi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40,
0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1,
0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40
};
/* CRC低位字节值表*/
static char auchCRCLo[] = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06,
0x07, 0xC7, 0x05, 0xC5, 0xC4, 0x04, 0xCC, 0x0C, 0x0D, 0xCD,
0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A,
0x1E, 0xDE, 0xDF, 0x1F, 0xDD, 0x1D, 0x1C, 0xDC, 0x14, 0xD4,
0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3,
0xF2, 0x32, 0x36, 0xF6, 0xF7, 0x37, 0xF5, 0x35, 0x34, 0xF4,
0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29,
0xEB, 0x2B, 0x2A, 0xEA, 0xEE, 0x2E, 0x2F, 0xEF, 0x2D, 0xED,
0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60,
0x61, 0xA1, 0x63, 0xA3, 0xA2, 0x62, 0x66, 0xA6, 0xA7, 0x67,
0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68,
0x78, 0xB8, 0xB9, 0x79, 0xBB, 0x7B, 0x7A, 0xBA, 0xBE, 0x7E,
0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71,
0x70, 0xB0, 0x50, 0x90, 0x91, 0x51, 0x93, 0x53, 0x52, 0x92,
0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B,
0x99, 0x59, 0x58, 0x98, 0x88, 0x48, 0x49, 0x89, 0x4B, 0x8B,
0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42,
0x43, 0x83, 0x41, 0x81, 0x80, 0x40
};

/* 要进行CRC校验的消息消息中字节数 */
unsigned short CRC16(unsigned char *puchMsg,unsigned short usDataLen )
{
unsigned char uchCRCHi = 0xFF ;  //高CRC字节初始化
unsigned char uchCRCLo = 0xFF ; //低CRC 字节初始化
unsigned int uIndex;    //CRC循环中的索引
while(usDataLen--)    //传输消息缓冲区
{
uIndex = uchCRCHi^*puchMsg++ ;//计算CRC
uchCRCHi = uchCRCLo^auchCRCHi[uIndex];
uchCRCLo = auchCRCLo[uIndex];
}
return (uchCRCHi<<8|uchCRCLo);//返回低位在前的CRC值
}

void DelayMs(unsigned int i)             //1ms延时
{
while(i--)
{
unsigned int j;
      for(j=1;j<=666;j++);
}
}
void InitSys()
{
_DINT();
BCSCTL1 &=~XT2OFF;
while ((IFG1 & OFIFG))//判断XT2是否起振
{
   IFG1 &= ~OFIFG; //清除振荡器失效标志
   for (int iq0 = 0xFF; iq0 > 0; iq0--); //延时，等待XT2起振
}
BCSCTL2 =SELM1+SELS;
}

void trans( unsigned char i )
{
TXBUF1=i;
while(!(IFG2&UTXIFG1)) ;

}

#pragma vector=TIMERA0_VECTOR
__interrupt void TIMER_cc(void)
{
TAR=0; //计数主体清零，给CCR1清零
A=CCR0;//临时保存TIMERA0的计数
if(Binted)
{
Ainted=1;
Binted=0;
}
}

#pragma vector = TIMERA1_VECTOR
__interrupt void TIMER_A(void)
{
if(TAIV==2) //TIMERA1上升沿触发
{
TAR=0; //计数主体清零，给CCR0清零
B=CCR1;//临时保存CCR1的值
      Binted=1;
if(Ainted&&Binted)
{
if(a<9)
{
c[a]=A;
c1[a]=B;
a++;
}
Ainted=0;
}
}
}

#pragma vector=TIMERB0_VECTOR
__interrupt void Timer_B (void)
{
_EINT();
if(m<7)                   //65535定时器中断次数小于7，表示定时次数（时间）少
      { m++;}
else                               //等于7表示等待定时次数到可以开始采集数据了
{
a=0;
TACCTL0=CM_1+CCIS_0+CAP+CCIE;
TACCTL1=CM_1+CCIS_0+CAP+CCIE;
while(a<9);                   //等待采集完9个数据
TACCTL0=CM_1+CCIS_0+CAP+0;
TACCTL1=CM_1+CCIS_0+CAP+0;
thereData=1;                   //标记一次数据采集完成
m=0;                         //为下一次定时准备
}
}

#pragma vector = UART1RX_VECTOR
__interrupt void USART1_RX(void)
{
int n;//普通循环变量
while(!(IFG2&UTXIFG1));
temp[usartcount]=RXBUF1; //把接收到的数据保存
    usartcount++;
if(temp[0]==sendstr[0])
{
if(usartcount>=2)
{
if(temp[1]==6){} //接收命令
else if(temp[1]==3)
{
if(usartcount==8)//如果接收完毕，8个字符
{
if(CRC16(temp,8)==0)//CRC校验
{
P3OUT =0x08;//使能发送,停止接收
DelayMs(2);
sendstr[8]=(CRC16(sendstr,7)&0X00FF); //计算CRCL
sendstr[7]=((CRC16(sendstr,7)>>8)&0X00FF); //计算CRCH
for(n=0;n<9;n++) trans(sendstr[n]); //返回应答数据
usartcount=0;
DelayMs(2);
P3OUT =0x00;
}
else usartcount=0;
}
}
else  usartcount=0;//接收计数清零
}
}
else usartcount=0;//接收计数清零
}

unsigned int midle(unsigned int *a,unsigned int n)
{
unsigned int i,j,t;
for(i=0;i<n;i++) for(j=0;j<n-i;j++)
if(a[j]>a[j+1]) {t=a[j];  a[j]=a[j+1]; a[j+1]=t;}
return a[n/2];
}

int main(void)
{
WDTCTL = WDTPW + WDTHOLD;                // Stop WDT
InitSys();

TBCCTL0 = CCIE;                         // TBCCR0 interrupt enabled
TBCCR0 = 65535;
TBCTL = TBSSEL_2+MC_1;                // SMCLK, up mode

TACTL=TASSEL_2+MC_2+TACLR;
TACCTL0=CM_1+CCIS_0+CAP+CCIE;
TACCTL1=CM_1+CCIS_0+CAP+CCIE;
P1DIR=0x00;
P1SEL=0xFF;
P4DIR=0xFF;
P4SEL=0x00;

P3DIR =0x48;
P3SEL |= 0xc0;          // 选择P3.6和P3.7做UART通信端口
P3OUT =0x00;
ME2 |=  URXE1+UTXE1; // 使能USART0的发送和接受
UCTL1 = CHAR;
UTCTL1 = SSEL0 + SSEL1; // UCLK = SMCLK
UBR01 = 0x41;//串口1
UBR11 = 0x03;
UMCTL1 = 0x00;          // Modulation
UCTL1 &= ~SWRST;       // 初始化UART状态机
IE2 |= URXIE1;       // 使能USART1的接收中断
IFG2 &=~UTXIFG0;
TACCTL0=CM_1+CCIS_0+CAP+0;
TACCTL1=CM_1+CCIS_0+CAP+0;
_EINT();
while (1)
{
if(thereData)
{
if(pt>49){pt=0;}
         else
         {
suma-=ta[pt];
sumb-=tb[pt];
ta[pt]=midle(c,8);
tb[pt]=midle(c1,8);
suma+=ta[pt];
sumb+=tb[pt];
sendstr[3]=(suma/50)/256;
sendstr[4]=(suma/50)%256;
sendstr[5]=(sumb/50)/256;
sendstr[6]=(sumb/50)%256;
pt++;
thereData=0;
}
}
}
}

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2条回答

阿信509

2019-07-15 20:09

要是怕看门狗有问题，就先关了呗

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