有没有人会DSPIC 帮我解释一下这个程序

只看该作者 · 2019-11-1 17:36

#include &quot;p30f5011.h&quot;
#include &quot;uart.h&quot;
#include &quot;B61509V.h&quot;

_FOSC(CSW_FSCM_OFF & XT_PLL8);
_FWDT(WDT_OFF);
_FBORPOR(MCLR_EN & PBOR_OFF);
_FGS(CODE_PROT_OFF);

unsigned int temp=0,Lowarm=100,an_cnt=0,t_cnt=0,cnt=0,cnt1=0,cnt2=0;
unsigned char intens=1,m_intens=0,f_intens=0,ff_intens=0,in=7,et=0x44,flag_1=0,zb_flag=0;
unsigned int shuzhi=0,f_shuzhi=0,ff_shuzhi=0,m_shuzhi=0;
unsigned int speakTime=0;//xujj
unsigned char lowArmFlag=0;//显示函数标志

int main (void);
void initINT();//xujj
void  Uart2int(void);
void Uart1int(void);

void  INIT(void);
void initPWM();

int main(void)
{
      INIT();
      TFT_Initial();
      intdisplay();
      LATCbits.LATC13 = 0;

      Uart1int();
      Uart2int();

while(1)
{

if(flag_1==1)
      {
      flag_1=0;

            if(shuzhi>=Lowarm)

                  {
                  LATCbits.LATC13 = 1;
                  }
            else
                  LATCbits.LATC13 = 0;

         LCD_PutString_shuzi(shuzhi,White,Black);
         LowArm_display(Lowarm);
         delay(200);

         U1MODEbits.UARTEN = 1;
         IEC0bits.U1RXIE = 1;
         IFS0bits.U1RXIF = 0;
         U2MODEbits.UARTEN = 1;
         IEC1bits.U2RXIE = 1;
         IFS1bits.U2RXIF = 0;
   }
}
}

void INIT(void)
{
   TRISB = 0;
   TRISC = 0x00;
   TRISD = 0x0f00;
   TRISF = 0x14;
   TRISG = 0;
   LATGbits.LATG3 = 1;
   LATCbits.LATC13 = 1;
   LATCbits.LATC14 = 1;
   _LATD6 = 0;
   _LATD7 = 1;
   _LATD0 = 1;
   _LATF6 = 0;
}
void Uart1int(void)/////串口1
{
U1BRG = 143;
IPC2bits.U1RXIP = 2;
U1STA = 0x0000;
U1MODE = 0x8000;
IEC0bits.U1RXIE = 1;
IEC0bits.U1TXIE = 0;
IFS0bits.U1RXIF = 0;
IFS0bits.U1TXIF = 0;
INTCON1 = 0X0000;
}

void Uart2int(void)/////串口2
{

   IPC6bits.U2RXIP = 3;
   U2STA = 0x0000;
   U2MODE = 0x8000;
   IEC1bits.U2RXIE = 1;
   IEC1bits.U2TXIE = 0;
   IFS1bits.U2RXIF = 0;
}

void initPWM()////定时器
{
  unsigned int PW=1360;
  T2CON=0x0010;//预分频比1:8
  OC8RS=PW;
  OC8CON=0x0006;//pwm 模式
  TMR2=0;
  PR2=PW*2;
  T2CONbits.TON=1;//打开定时器
}
void __attribute__((__interrupt__,no_auto_psv)) _U1RXInterrupt(void)///串口通信传输数据动态显示
{

   unsigned char cnt,rep_data[4];
   IFS0bits.U1RXIF = 0;
   if(U1RXREG == 0x88)
   {
         IEC0bits.U1RXIE = 0;
         for(cnt=0;cnt<4;cnt++)
               {
                  while(!U1STAbits.RIDLE);
                  rep_data[cnt] = U1RXREG;
               }
         flag_1=1;
         shuzhi = rep_data[0]*256+rep_data[1];
         intens = rep_data[2];
         et = rep_data[3];
         U1STAbits.UTXEN = 0;
         U1MODEbits.UARTEN = 0;
}
}

void __attribute__((__interrupt__,no_auto_psv)) _U2RXInterrupt(void)
{

   unsigned char rep_data=0;
//    RXValue = U2RXREG;
IFS1bits.U2RXIF = 0;
   if(U2RXREG == 0xFF)
   {
         IEC1bits.U2RXIE = 0;
         while(!U2STAbits.RIDLE);
         rep_data = U2RXREG;
         if(rep_data==0x0D)
         {
               Lowarm+=10;
               if(Lowarm >=1000)
               Lowarm = 10;
         }
         if(rep_data==0x09)
         {
               Lowarm-=10;
               if(Lowarm ==0)
               Lowarm = 1000;
         }
         flag_1=1;

         U2STAbits.UTXEN = 0;
         U2MODEbits.UARTEN = 0;
   }
}

/*外部中断初始化，利用外部中断检按键的电平变化*/
void initINT()
{
INTCON1 = 0x8000;
//外部中断负边沿，极性选择位
INTCON2 = 0x001f;
//外部中断允许位
// IEC1bits.INT1IE=1;
IEC1bits.INT2IE=1;
IEC2bits.INT3IE=1;
//复位外部中断标志位
IFS1bits.INT2IF=0;
IFS2bits.INT3IF=0;

IPC5bits.INT2IP = 5;
IPC9bits.INT3IP = 4;
}

void __attribute__((__interrupt__,no_auto_psv)) _INT2Interrupt( ) /////遥控器控制最低浓度的减
{
IFS1bits.INT2IF=0;
IEC1bits.INT2IE=0;
U2STAbits.UTXEN = 0;
U2MODEbits.UARTEN = 0;
delay(2000);
flag_1=0;
Lowarm-=10;
if(Lowarm ==0)
   Lowarm = 10;
lowArmFlag=1;
while(!_RD9);
IEC1bits.INT2IE=1;
IFS1bits.INT2IF=0;
}

void __attribute__((__interrupt__,no_auto_psv)) _INT3Interrupt( )
{
IFS2bits.INT3IF=0;
IEC2bits.INT3IE=0;
U2STAbits.UTXEN = 0;
U2MODEbits.UARTEN = 0;
delay(2000);
flag_1=0;
Lowarm+=10;
lowArmFlag=1;
while(!_RD10);
IEC2bits.INT3IE=1;
IFS2bits.INT3IF=0;

}

有没有人会DSPIC 帮我解释一下这个程序

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