摘要：
1 void keyScan(void) 2 { 3 char i; 4 uint8 m; 5 uint8 R0 = 0; 6 TRISB=0x38; //xls 2012-11-26 增加复位键RB5 7 8 R0 = PORTB; //RB3,RB4,RB5按键读取 9 R0 &=0x38; //保留键值10 R0 = ~R0; //正逻辑11 /*以下是RC滤波处理,R0,R1對應於KEY1,KEY2的BUF*/12 datakey.allkey = (R0>>3);//将读到的键值移至最右端 比如当... 阅读全文