MSP430F4793的内部温度传感器

#include <msp430.h>

unsigned int ADCresult;
unsigned long DegC = 0;
unsigned long DegF = 0;

int main(void)
{
  volatile unsigned int i;                  // Use volatile to prevent removal
                                            // by compiler optimization

  WDTCTL = WDTPW + WDTHOLD;                 // Stop WDT
  FLL_CTL0 |= XCAP11PF;                     // Configure load caps
  for (i = 0; i < 10000; i++);              // Delay for 32 kHz crystal to
                                            // stabilize

  SD16CTL = SD16REFON+SD16SSEL0;            // 1.2V ref, SMCLK
  SD16CCTL2 |= SD16SNGL+SD16IE ;            // Single conv, enable interrupt
  SD16INCTL2 |= SD16INCH_6;                 // Select Channel A6
  for (i = 0; i < 0x3600; i++);             // Delay for 1.2V ref startup

  while (1)
  {
    SD16CCTL2 |= SD16SC;                    // Set bit to start conversion
    __bis_SR_register(LPM0_bits + GIE);     // Enter LPM0 w/ interrupts

    DegC = ((unsigned long)ADCresult * 909)/65536 - 727;
                                            // Calculate degrees Celcius
    DegF = ((unsigned long)ADCresult * 1636)/65536 - 1276;
                                            // Calculate degrees Farenheit
    __no_operation();                       //SET BREAKPOINT HERE
  }
}

#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=SD16A_VECTOR
__interrupt void SD16AISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(SD16A_VECTOR))) SD16AISR (void)
#else
#error Compiler not supported!
#endif
{
  switch (SD16IV)
  {
  case 2:                                   // SD16MEM Overflow
    break;
  case 4:                                   // SD16MEM0 IFG
    break;
  case 6:                                   // SD16MEM1 IFG    
    break;
  case 8:                                   // SD16MEM2 IFG
    ADCresult = SD16MEM2;                   // Save CH2 results (clears IFG)
    break;
  }

   __bic_SR_register_on_exit(LPM0_bits);    // Exit LPM0
}

http://www.ti.com/cn/lit/zip/slac155

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