MSP430之ADC采集滤波

占位符

    /* 加权平均滤波 */
    static unsigned char coe[13] = {1,2,3,4,5,6,7,8,9,10,11,12,13};
    static unsigned int coeSum= 1+2+3+4+5+6+7+8+9+10+11+12+13;
    unsigned long temp = 0;

    for (i = 0; i<ADCN; i++)
    {
        temp += arr[i]*coe[i];
    }
    temp = (unsigned long )( temp * 1.0 / coeSum);

占位符

/* 中值滤波 */
    unsigned long temp = 0;

    // 选择排序
    for (i = 0; i<ADCN-1; i++)
    {
        k = i;
        for (j = i+1; j<ADCN; j++)
        {
            if (arr[j] < arr[k])
                k = j;
        }
        if (k != i)
        {
            temp = arr[k];
            arr[k] = arr[i];
            arr[i] = temp;
        }
    }
    temp = arr[ (ADCN - 1) / 2];        //返回中值