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            PIC16f1937 IO口配置

            作者: 時(shí)間:2016-11-18 來(lái)源:網(wǎng)絡(luò) 收藏
            配置pic161937為數(shù)字輸入的時(shí)候,首先要初使化ANSELx,否則讀為0.

            // Register: ANSELA
            volatile unsigned char ANSELA @ 0x18C;
            // bit and bitfield definitions
            volatile bit ANSA0 @ ((unsigned)&ANSELA*8)+0;
            volatile bit ANSA1 @ ((unsigned)&ANSELA*8)+1;
            volatile bit ANSA2 @ ((unsigned)&ANSELA*8)+2;
            volatile bit ANSA3 @ ((unsigned)&ANSELA*8)+3;
            volatile bit ANSA4 @ ((unsigned)&ANSELA*8)+4;
            volatile bit ANSA5 @ ((unsigned)&ANSELA*8)+5;
            #ifndef _LIB_BUILD
            union {
            struct {
            volatile unsigned ANSA0 : 1;
            volatile unsigned ANSA1 : 1;
            volatile unsigned ANSA2 : 1;
            volatile unsigned ANSA3 : 1;
            volatile unsigned ANSA4 : 1;
            volatile unsigned ANSA5 : 1;
            volatile unsigned : 1;
            volatile unsigned : 1;
            };
            struct {
            volatile unsigned ANSELA : 6;
            };
            } ANSELAbits @ 0x18C;
            #endif

            本文引用地址:http://www.biyoush.com/article/201611/315603.htm

            // Register: ANSELB
            volatile unsigned char ANSELB @ 0x18D;
            // bit and bitfield definitions
            volatile bit ANSB0 @ ((unsigned)&ANSELB*8)+0;
            volatile bit ANSB1 @ ((unsigned)&ANSELB*8)+1;
            volatile bit ANSB2 @ ((unsigned)&ANSELB*8)+2;
            volatile bit ANSB3 @ ((unsigned)&ANSELB*8)+3;
            volatile bit ANSB4 @ ((unsigned)&ANSELB*8)+4;
            volatile bit ANSB5 @ ((unsigned)&ANSELB*8)+5;
            #ifndef _LIB_BUILD
            union {
            struct {
            volatile unsigned ANSB0 : 1;
            volatile unsigned ANSB1 : 1;
            volatile unsigned ANSB2 : 1;
            volatile unsigned ANSB3 : 1;
            volatile unsigned ANSB4 : 1;
            volatile unsigned ANSB5 : 1;
            volatile unsigned : 2;
            };
            struct {
            volatile unsigned ANSELB : 6;
            };
            } ANSELBbits @ 0x18D;
            #endif

            // Register: ANSELD
            volatile unsigned char ANSELD @ 0x18F;
            // bit and bitfield definitions
            volatile bit ANSD0 @ ((unsigned)&ANSELD*8)+0;
            volatile bit ANSD1 @ ((unsigned)&ANSELD*8)+1;
            volatile bit ANSD2 @ ((unsigned)&ANSELD*8)+2;
            volatile bit ANSD3 @ ((unsigned)&ANSELD*8)+3;
            volatile bit ANSD4 @ ((unsigned)&ANSELD*8)+4;
            volatile bit ANSD5 @ ((unsigned)&ANSELD*8)+5;
            volatile bit ANSD6 @ ((unsigned)&ANSELD*8)+6;
            volatile bit ANSD7 @ ((unsigned)&ANSELD*8)+7;
            #ifndef _LIB_BUILD
            union {
            struct {
            volatile unsigned ANSD0 : 1;
            volatile unsigned ANSD1 : 1;
            volatile unsigned ANSD2 : 1;
            volatile unsigned ANSD3 : 1;
            volatile unsigned ANSD4 : 1;
            volatile unsigned ANSD5 : 1;
            volatile unsigned ANSD6 : 1;
            volatile unsigned ANSD7 : 1;
            };
            } ANSELDbits @ 0x18F;
            #endif

            // Register: ANSELE
            volatile unsigned char ANSELE @ 0x190;
            // bit and bitfield definitions
            volatile bit ANSE0 @ ((unsigned)&ANSELE*8)+0;
            volatile bit ANSE1 @ ((unsigned)&ANSELE*8)+1;
            volatile bit ANSE2 @ ((unsigned)&ANSELE*8)+2;
            #ifndef _LIB_BUILD
            union {
            struct {
            volatile unsigned ANSE0 : 1;
            volatile unsigned ANSE1 : 1;
            volatile unsigned ANSE2 : 1;
            volatile unsigned : 5;
            };
            struct {
            volatile unsigned ANSELE : 3;
            };
            } ANSELEbits @ 0x190;
            #endif
            // bit and bitfield definitions



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