math.c

12位11通道AD转换芯片tlv2553,12位双通道DA转换芯片tlv5638

#include "group.h"

unsigned int math(unsigned int a,unsigned int b)
{ 
    unsigned char i;
    i=0;
    if(key_i<10&&key_i>=0)
    {
       a=a*10;
       a=a+key_i;
       i++;
    }
  
}