ADC12 问题

只看该作者 · 2014-6-29 23:01

Curr_Volt = caltmp >> 12;                //Curr_Volt = caltmp / 2^n
ptr[0] = Curr_Volt / 100;                //Hex->Dec变换
t1 = Curr_Volt - (ptr[0] * 100);
ptr[2] = t1 / 10;
ptr[3] = t1 - (ptr[2] * 10);
ptr[1] = 10;                               //shuzi表中第10位对应符号"."
//在液晶上显示变换后的结果
for(i = 0;i < 4;i++)
   LCD_write_char((6 + i),1,shuzi[ptr]);

向大家请教一下，各条语句是什么意思呢？

只看该作者 · 2014-6-29 23:02

求助大家了

只看该作者 · 2014-6-29 23:39

ptr[0] = Curr_Volt / 100; //Hex->Dec变换
t1 = Curr_Volt - (ptr[0] * 100);
ptr[2] = t1 / 10;
ptr[3] = t1 - (ptr[2] * 10);
程序可简化为：
ptr[0] = Curr_Volt / 100; //Hex->Dec变换
ptr[1] =10；
ptr[2] = （Curr_Volt % 100）/ 10;
ptr[3] = Curr_Volt % 10;