MSP430读取ADC0832并LCD1602显示

ID:3721 · 发表于 2016-6-13 14:27

#include "io430.h"

unsigned char tb1[]=" Power:";
unsigned char tb2[]="Volt";
unsigned char tb3[]=" low Power";
unsigned char tb4[]=" Power Full";
unsigned char tb5[]=" percent:";
///////////////////////////////////////////////////////////////////////
//    P1=dat； rs=P2.4,e=P2.5                /////
// ADC0832: CLK=P2.0;DI=P2.1;          ////
//    DO=P2.2; CS=P2.3                      ////
/////////////////////////////////////////////////////////////////////

void w1602(unsigned char t,unsigned char dat)
{
  char n;
  if(t==0)
P2OUT &=~BIT4;
  else
P2OUT |=BIT4;
  P1OUT =dat;
  P2OUT &=~BIT5;
  n=5;
  while(n--);
  P2OUT |=BIT5;
  n=10;
  while(n--);
  P2OUT &=~BIT5;
}
unsigned char rADC0832()
{
  unsigned char temp=0,k;

  P2OUT |=BIT3;
__no_operation();
  P2OUT &=~BIT3;  //start

  P2OUT &=~BIT0;
  __no_operation();
  P2OUT |=BIT1;
  __no_operation();
  P2OUT |=BIT0;
  __no_operation();//DI=1
  P2OUT &=~BIT0;

  __no_operation();
  P2OUT |=BIT0;
  __no_operation(); //DI=1
  P2OUT &=~BIT0;

  P2OUT &=~BIT1;
  __no_operation();
  P2OUT |=BIT0;
  __no_operation(); //DI=1
  P2OUT &=~BIT0;

  __no_operation();
  P2OUT |=BIT0;
  __no_operation(); //DI=1
  P2OUT &=~BIT0;

  for(k=0;k<8;k++)
  {
   temp=temp<<1;
   P2OUT |=BIT0;
   if(P2IN & BIT2)temp |=0x01;
   P2OUT &=~BIT0;
  }
  return temp;
}
void init1602()
{
  w1602(0,0x38);
  w1602(0,0x06);
  w1602(0,0x0c);
  w1602(0,0x01);

}
int main( void )
{
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
  unsigned int d,d1,dd;
  P1DIR =0xff;
  P2DIR =0x3B;
  //P2REN |=BIT2;
  P2OUT |=BIT2;
  init1602();
  while(1)
  {

      d=196 * rADC0832();//25000(3V=153(29988) 3.7=189(37)
      dd=100*(rADC0832()-153)/36;
   ////////////////////////////
      w1602(0,0x80);
      for(d1=0;d1<7;d1++)
      w1602(1,tb1[d1]);
      w1602(1,(d/10000)+0x30);
      w1602(1,0x2E);
      w1602(1,(d%10000)/1000+0x30);
      w1602(1,((d%10000)%1000)/100+0x30);
      for(d1=0;d1<4;d1++)
      w1602(1,tb2[d1]);
      w1602(1,0x20);
      w1602(1,0x20);
      ///////////////////////////
      w1602(0,0xc0);
      if(d<29988)
         {
            for(d1=0;d1<12;d1++)
            w1602(1,tb3[d1]);
            w1602(1,0x20);
            w1602(1,0x20);
            w1602(1,0x20);
            w1602(1,0x20);
         }
      else
         {
         if(d>37044)
               {
               for(d1=0;d1<13;d1++)
                     w1602(1,tb4[d1]);
               w1602(1,0x20);
               w1602(1,0x20);
               w1602(1,0x20);
               }
         else
               {
               for(d1=0;d1<9;d1++)
                     w1602(1,tb5[d1]);
               if((dd/10)==0)
                  w1602(1,0x20);
               else
                  w1602(1,dd/10+0x30);
               w1602(1,dd%10+0x30);
               w1602(1,0x25);
               w1602(1,0x20);
               w1602(1,0x20);
               w1602(1,0x20);
               w1602(1,0x20);
            }
         }

  }
}

ADC0832的时序图详解：http://www.51hei.com/bbs/dpj-51688-1.html

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