temp.c

来自「无线芯片CC2430内部温度转化及通过323串口发送到上位机源程序」· C语言 代码 · 共 32 行

#include "temp.h"

void initTempSensor(void){
   DISABLE_ALL_INTERRUPTS();

   SET_MAIN_CLOCK_SOURCE(0);

   *((BYTE __xdata*) 0xDF26) = 0x80;
}
INT8 getTemperature(void){
  UINT8   i;
  UINT16  accValue;
  UINT16  value;

  accValue = 0;
  for( i = 0; i < 4; i++ )
  {
    ADC_SINGLE_CONVERSION(ADC_REF_1_25_V | ADC_14_BIT | ADC_TEMP_SENS);
    ADC_SAMPLE_SINGLE();
    while(!ADC_SAMPLE_READY());

    value =  ADCL >> 2;
    value |= (((UINT16)ADCH) << 6);

    accValue += value;
  }
  value = accValue >> 2; // devide by 4

  return ADC14_TO_CELSIUS(value);
}