MSP432评测7-----TN9

1万 · 2020-4-17 19:25

本帖最后由 Cjy_JDxy 于 2020-4-17 19:26 编辑

今晚搞了一下TN9(红外体温计模块)

代码：
#include "msp.h"

#define uchar unsigned char
#define uint unsigned int

void ACK_0() { P4->OUT&=~BIT4;}  //
void ACK_1() { P4->OUT|=BIT4;}

#define DATA          (P4IN&0x01)

#define CLOCK          (P4IN&0x04)

float Temp;
float Temp1,Temp2;
unsigned char ReadData[5];
unsigned int a,b;

//-----------------------------------------------------------------------------------------
//????:Delay()
//? ?:?????
//-----------------------------------------------------------------------------------------
void Delay(unsigned char us)  //5,7,9
{
  while(--us);
}

//-----------------------------------------------------------------------------------------
//????:Delayms()
//-----------------------------------------------------------------------------------------
void Delayms(unsigned int ims)
{
  unsigned int i,j;
for(i=0;i<ims;i++)
   for(j=0;j<65;j++) { Delay(1); }
}
void TN_IRACK_EN(void)
{
      ACK_0();
  Delay(1);
}

void TN_IRACK_UN(void)
{
      ACK_1();
  Delay(1);
}

void InitIO(void)
{
      P4DIR=0x10;
      P4SEL1=0;
      P4SEL0=0;
      P4REN=0x05;
      P4OUT=0x05;
}
void TN_ReadData(unsigned char Flag)
{
      unsigned char i,j,k,BitState=0;
      for(k=0;k<7;k++)
      {
            for(j=0;j<5;j++)
            {
                     for(i=0;i<8;i++)
                     {
                              while(1)
                              {
                                    if(CLOCK==0)
                                             break;
                                    Delay(1);
                              }
                              Delay(1);
                              if(DATA==1)
                                    BitState=1;
                              else
                                    BitState=0;
                              ReadData[j]= ReadData[j]<<1;
                              ReadData[j]= ReadData[j]|BitState;
      Delay(1);
                              while(1)
                              {
                                    if(CLOCK==0x04)
                                             break;
                                    Delay(1);
                              }
                     }
            }
            if(ReadData[0]==Flag)
                     k=8;
      }
      TN_IRACK_UN();
}
float TN_GetData(unsigned char X)
{
      //Ack_Clk_Data_init;
  InitIO();
      TN_ReadData(X);
      Temp=(ReadData[1]<<8)|ReadData[2];
      Temp=(float)Temp/16.00-273.15;
      return Temp;
}
float TN_GetTemp(unsigned char mode)
{

      float T;

      {
            TN_IRACK_UN();
            TN_IRACK_EN();
            if(mode==0)
            {
                     T=TN_GetData(0x4c);

            }
            else
            {
                     T=TN_GetData(0x66);

            }
      }


      return T;
}

int main(void)
{
volatile uint32_t i;


WDT_A->CTL = WDT_A_CTL_PW | WDT_A_CTL_HOLD;  // Stop watchdog timer

// The following code toggles P1.0 port
P1->DIR |= BIT0 ;                            // Configure P1.0 as output
            InitIO();

while(1)
{
      Temp1=TN_GetTemp(0);
      Temp2=TN_GetTemp(1);
      a=((unsigned int)(Temp1*10));
                              b=((unsigned int)(Temp2*10));


      P1->OUT ^= 0x01;
      Delayms(500);
}
}

效果图：