MSP430G2553单通道重复测温度的程序温度显示一直都为0

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MSP430G2553单通道重复测温度的程序温度显示一直都为0 [复制链接]

本程序用的是软件触发内部测温通道，问题应该在中断程序中，请大家帮忙看看
整个程序太多，所以这里省去了显示程序，有关的部分程序如下：

#define num 5


long IntDeg;

static unsigned long results[num]={0};



void main()

{

        WDTCTL=WDTPW+WDTHOLD;

        ADC10_graceInit();

        LCD_Init();

    while(1)

    {

      ADC10CTL0 |= ENC + ADC10SC;


      LCD_Display();                                                               
    }

}


void ADC10_graceInit(void)

{

    /* USER CODE START (section: ADC10_graceInit_prologue) */

    /* User initialization code */

    /* USER CODE END (section: ADC10_graceInit_prologue) */



    /* disable ADC10 during initialization */

    ADC10CTL0 &= ~ENC;



    /*

     * Control Register 0

     *

     * ~ADC10SC -- No conversion

     * ~ENC -- Disable ADC

     * ~ADC10IFG -- Clear ADC interrupt flag

     * ~ADC10IE -- Disable ADC interrupt

     * ADC10ON -- Switch On ADC10

     * REFON -- Enable ADC reference generator

     * REF2_5V -- Set reference voltage generator = 2.5V

     * ~MSC -- Disable multiple sample and conversion

     * ~REFBURST -- Reference buffer on continuously

     * ~REFOUT -- Reference output off

     * ~ADC10SR -- Reference buffer supports up to ~200 ksps

     * ADC10SHT_3 -- 64 x ADC10CLKs

     * SREF_5 -- VR+ = VREF+ and VR- = VREF-/ VeREF-

     *

     * Note: ~ indicates that has value zero

     */

    ADC10CTL0 = ADC10ON | REFON | REF2_5V | ADC10SHT_3 | SREF_5;



    /*

     * Control Register 1

     *

     * ~ADC10BUSY -- No operation is active

     * CONSEQ_2 -- Repeat single channel

     * ADC10SSEL_0 -- ADC10OSC

     * ADC10DIV_3 -- Divide by 4

     * ~ISSH -- Input signal not inverted

     * ~ADC10DF -- ADC10 Data Format as binary

     * SHS_0 -- ADC10SC

     * INCH_10 -- Temperature Sensor

     *

     * Note: ~ indicates that has value zero

     */

    ADC10CTL1 = CONSEQ_2 | ADC10SSEL_0 | ADC10DIV_3 | SHS_0 | INCH_10;





    /* Software delay for REFON to settle */

    __delay_cycles(30000);



    /* enable ADC10 */

    ADC10CTL0 |= ENC;



    /* USER CODE START (section: ADC10_graceInit_epilogue) */

    /* User code */

    /* USER CODE END (section: ADC10_graceInit_epilogue) */

}





#pragma vector=ADC10_VECTOR

__interrupt void ADC10_ISR(void)

{    __delay_cycles(1000);

    static unsigned char index=0;

    results[index++]=ADC10MEM;

    if(index==num)

    { unsigned char i;

          unsigned long sum=0;

          index=0;

          ADC10CTL0 &= ~ENC;

          for(i=1;i<=num;i++)

          {

                  sum=sum+results[i];

          }

          sum=sum/num;

          IntDeg= (sum*7042/1024 - 2777)*10;    //IntDeg用于显示程序中去

      }

}