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三种按键处理函数
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RB578 R0 = PORTB; //RB3,RB4,RB5按键读取9 R0 &=0x38; //保留键值10 R0 = ~R0; //正逻辑11
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RB578 R0 = PORTB; //RB3,RB4,RB5按键读取9 R0 &=0x38; //保留键值10 R0 = ~R0; //正逻辑11
