掉电记忆程序(共17页).doc

精选优质文档-倾情为你奉上三：功能/基于mcs51-u的按键计数器（产品计数器，含掉电记忆）/功能：s1用于加计数，s2用于计数归零；s3用于减计数#include unsigned int Count;/*键盘子程序*sbit pl= P36; /165锁存sbit clk_j=P37; /165时钟sbit Do= P35; /165串口数据unsigned char bdata key; sbit s1=key0; sbit s2=key1;sbit s3=key2;sbit s4=key3;sbit s5=key4;sbit s6=key5;sbit s7=key6;sbit s8=key7; Readke