谁有BMP085的程序，我的程序有点问题

只看该作者 · 2010-10-28 10:13

/* *********************** BMP085******************************* */
//  调试环境：时钟为DCO的时钟;频率4.00MHz
//  串行接口：P2.6 ------>SDA
//          P2.7 ------>SCL
//          P3.0 ------>wp256
//          P3.0 ------>wpc02
//  测试器件：ATMEL AT24C256
//  测试时间：2004-12-06
//
/* *********************************************************************** */
#include"msp430x43x.h"
//#include "print.h"
#define SDA_IN    P4DIR &=~BIT5    // P2.6 IN
#define SDA_OUT    P4DIR |= BIT5    // P2.6 OUT
#define SDA_LOW    P4OUT &=~BIT5    // sda=0
#define SDA_HIGH P4OUT |= BIT5    // sda=1
#define SCL_IN    P4DIR &=~BIT3    // P2.7 IN
#define SCL_OUT    P4DIR |= BIT3    // P2.7 OUT
#define SCL_LOW    P4OUT &=~BIT3
#define SCL_HIGH P4OUT |= BIT3
#define XCLR_IN    P4DIR &=~BIT6    // P2.7 IN
#define XCLR_OUT    P4DIR |= BIT6    // P2.7 OUT
#define XCLR_LOW    P4OUT &=~BIT6
#define XCLR_HIGH P4OUT |= BIT6
#define WP256_LOW P3OUT &=~BIT0    // P3.0
#define WP256_HIGH  P3OUT |= BIT0    // P3.0
#define WPC02_LOW P3OUT &=~BIT0
#define WPC02_HIGH  P3OUT |= BIT0
unsigned char DATA_R,DATA_R1;
//#define REC_DATA  P2IN&BIT5
void delay(unsigned int m)
{
  while(m--);
}
void IIC_START (void)
{    SDA_OUT;
SDA_HIGH;
SCL_HIGH;
delay(5);
SDA_LOW;
delay(5);
SCL_LOW;
delay(5);
}
void IIC_RESTART (void)
{    SDA_OUT;
SDA_HIGH;
SCL_HIGH;
delay(1);
SDA_LOW;
delay(1);
SCL_LOW;
delay(1);
}
void IIC_STOP (void)
{    SDA_OUT;
SDA_LOW;
delay(1);
SCL_HIGH;
delay(1);
SDA_HIGH;
delay(1);
}
void IIC_ACK (void)
{    SDA_OUT;
SDA_LOW;
delay(1);
SCL_HIGH;
delay(1);
SCL_LOW;
delay(1);
}
void IIC_TX_DATA (unsigned char DATA)
{    unsigned char Rn=8,RR=0x80;
      SDA_OUT;
      delay(5);
for (;Rn!=0;Rn--)
  {
if ((DATA&RR)!=0)
SDA_HIGH;
else
SDA_LOW;
delay(5);
SCL_HIGH;
delay(5);
SCL_LOW;
delay(5);
RR>>=1;
  }
/*SDA_HIGH;
delay(5);
SCL_HIGH;
delay(5);
SCL_LOW;
delay(5);*/
}
unsigned char IIC_RX_DATA (void)
{unsigned int Rn=8,DATA=0,RR=0x80;
SDA_IN;             // 端口为输入
delay(5);
for (;Rn!=0;Rn--)
  {
   SCL_HIGH;
   delay(5);

   if ((P4IN&BIT5)!=0)
      DATA|=RR;
   else
      DATA&=~RR;
      RR>>=1;
      SCL_LOW;
      delay(5);
  }

return DATA;
}

unsigned char  READC256N_BYTE ()
{    /*XCLR_OUT;
      XCLR_HIGH;
      XCLR_LOW;
      delay(1);
      XCLR_HIGH;
      */
      IIC_START ();
      IIC_TX_DATA (0xEE);
IIC_ACK ();
IIC_TX_DATA (0xF4);
IIC_ACK ();
      IIC_TX_DATA (0x2E);
      IIC_ACK ();
IIC_STOP ();
      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);

      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      IIC_START ();
IIC_TX_DATA (0xEE);
IIC_ACK ();
      IIC_TX_DATA (0xF6);
IIC_ACK ();

      IIC_RESTART ();
      IIC_TX_DATA (0xEF);
      IIC_ACK ();
      DATA_R=IIC_RX_DATA();
      IIC_ACK ();
      DATA_R1=IIC_RX_DATA();
      IIC_ACK ();
IIC_STOP ();


      IIC_TX_DATA (0xEE);
IIC_ACK ();
IIC_TX_DATA (0xF4);
IIC_ACK ();
      IIC_TX_DATA (0x34);
      IIC_ACK ();
IIC_STOP ();

      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);

      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      delay(10000);
      IIC_START ();
IIC_TX_DATA (0xEE);
IIC_ACK ();
      IIC_TX_DATA (0xF6);
IIC_ACK ();

      IIC_RESTART ();

      IIC_TX_DATA (0xEF);
      IIC_ACK ();
      DATA_R=IIC_RX_DATA();
      IIC_ACK ();
      DATA_R1=IIC_RX_DATA();
      IIC_ACK ();
      IIC_STOP ();
return DATA_R;
}

谁有BMP085的程序，我的程序有点问题

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