基于单片机ADC0809八路电压采集系统设计-毕设课设资料

Posted 2021-05-15 Mr song song

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数码管显示，测量八路电压表。

#define addo (5.0/255.0)
#define zero 0.005	 //用于校准AD的误差
void main()
{
  uint cnt=0;
  while(1)
   {
     switch(cnt++)
      {
        case 0:   decodenum(ad_action(0)*addo+zero,0);break; 
        case 70:  decodenum(ad_action(1)*addo+zero,1);break;
        case 140: decodenum(ad_action(2)*addo+zero,2);break;
        case 210: decodenum(ad_action(3)*addo+zero,3);break;
        case 280: decodenum(ad_action(4)*addo+zero,4);break;
        case 350: decodenum(ad_action(5)*addo+zero,5);break;
        case 420: decodenum(ad_action(6)*addo+zero,6);break;