#include <msp430g2231.h>
#include <intrinsics.h>
long volMeasured[8];
unsigned char volMeasuredPosition = 0;
long volAverage;
// 定义一个求平均值函数
long Measured[8];
long Average(long Measured[8])
{
unsigned int i;
long average = 0;
for(i = 0;i < 8;i ++)
average += Measured
;
average >>= 3 ;
return(average);
}
// 主函数
void main(void)
{
//unsigned char i;
WDTCTL = WDTPW + WDTHOLD;
ADC10CTL0 = SREF_1 + ADC10SHT_0 + ADC10ON + REFON;
ADC10CTL0 |= REF2_5V;
ADC10CTL1 = INCH_1+CONSEQ_0+ADC10DIV_0+ADC10SSEL_2;
ADC10AE0 |= BIT1;
while(1)
{
ADC10CTL0 |= ENC + ADC10SC;
volMeasured[volMeasuredPosition++] = ADC10MEM;
if(volMeasuredPosition == 8)
volMeasuredPosition = 0;
volAverage = Average(long volMeasured[8]); // 为什么我这边调用平均值函数时,编译时会错误?
P1DIR |= BIT0;
if(volAverage >0x01FF ) //当电压>1.2V时,红灯亮
P1OUT |= BIT0;
else
P1OUT &= ~BIT0;
}
}
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