TA的每日心情 | 开心 2023-6-21 15:45 |
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签到天数: 12 天 [LV.3]偶尔看看II
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<div class="quote"><b>以下是引用<i>ldch</i>在2007-05-04 17:01:31的发言:</b><br /><p>#include "P12F675.INC"</p><p>EEADDRA EQU 20H<br />EEADDRB EQU 21H<br />TEMP EQU 22H<br />EEREADA EQU 23H<br />EEREADB EQU 24H<br />DELY1 EQU 25H<br />DELY2 EQU 26H<br />DELY3 EQU 27H</p><p> ORG 0x0000</p><p>STAR<br /> BCF STATUS,RP0 ;体选择BANK0<br /> MOVLW 01H<br /> MOVWF EEADDRA ;初始化A地址<br /> MOVLW 02H<br /> MOVWF EEADDRB ;初始化B地址</p><p> CLRF GPIO ;清GPIO寄存器</p><p> MOVLW 07H<br /> MOVWF CMCON ;关闭比较器19H</p><p> BSF STATUS,RP0 ;体选择BANK1<br /> BCF INTCON,GIE ;禁止中断<br /> CLRF ANSEL ;清9FH模拟选择寄存器</p><p> MOVLW 08H<br /> MOVWF TRISIO ;除GPIO3外,其他管脚都是输出</p><p> BCF STATUS,RP0<br /> CALL DELAY1</p><p> CALL EEREAD_A<br /> CALL EEREAD_B</p><p> MOVF EEREADB,W<br /> XORLW 01H<br /> BTFSS STATUS,Z<br /> GOTO A3<br /> GOTO AA<br /> <br />A3<br /> BCF STATUS,RP0<br /> INCF EEREADA<br /> MOVF EEREADA,W<br /> XORLW 04H<br /> BTFSS STATUS,Z<br /> GOTO WRA<br /> GOTO A_3<br /> <br />WRA<br /> MOVF EEREADA,W<br /> MOVWF TEMP<br /> CALL WREEA<br /> GOTO AA<br /> <br />A_3<br /> MOVLW 01H<br /> MOVWF EEREADA<br /> GOTO WRA<br /> <br />AA<br /> BCF STATUS,RP0<br /> MOVF EEREADA,W<br /> XORLW 01H<br /> BTFSS STATUS,Z<br /> GOTO AA2<br /> MOVLW 0FFH<br /> MOVWF GPIO</p><p>FINISH<br /> BCF STATUS,RP0<br /> MOVLW 00H<br /> MOVWF TEMP<br /> CALL WREEB<br /> CALL DELAY<br /> BCF STATUS,RP0<br /> MOVLW 01H<br /> MOVWF TEMP<br /> CALL WREEB<br /> BCF STATUS,RP0<br /> MOVF EEREADA,W<br /> MOVWF TEMP<br /> CALL WREEA<br />LOOP<br /> GOTO LOOP<br /> <br />AA2<br /> BCF STATUS,RP0<br /> MOVF EEREADA,W<br /> XORLW 02H<br /> BTFSS STATUS,Z<br /> GOTO AA3<br /> MOVLW 0FDH<br /> MOVWF GPIO<br /> GOTO FINISH</p><p>AA3<br /> BCF STATUS,RP0<br /> MOVF EEREADA,W<br /> XORLW 03H<br /> BTFSS STATUS,Z<br /> GOTO AA1<br /> MOVLW 0FBH<br /> MOVWF GPIO<br /> GOTO FINISH</p><p>AA1<br /> MOVLW 01H<br /> MOVWF EEREADA<br /> GOTO WRA<br /> <br /> </p><p>EEREAD_A<br /> BCF STATUS,RP0<br /> MOVF EEADDRA,W<br /> BSF STATUS,RP0<br /> MOVWF EEADR<br /> BSF EECON1,RD<br /> MOVF EEDATA,W<br /> BCF STATUS,RP0<br /> MOVWF EEREADA<br /> RETURN</p><p>EEREAD_B<br /> BCF STATUS,RP0<br /> MOVF EEADDRB,W<br /> BSF STATUS,RP0<br /> MOVWF EEADR<br /> BSF EECON1,RD<br /> MOVF EEDATA,W<br /> BCF STATUS,RP0<br /> MOVWF EEREADB<br /> RETURN<br /> <br />WREEA ;写A,TEMP传送写入数据<br /> BCF STATUS,RP0 ;取BANK0<br /> MOVF EEADDRA,W ;取A地址<br /> BSF STATUS,RP0 ;取BANK1<br /> MOVWF EEADR ;A地址进入EEADR<br /> BCF STATUS,RP0 ;取BANK0<br /> MOVF TEMP,W ;取写入数据<br /> BSF STATUS,RP0 ;取BANK1<br /> MOVWF EEDATA ;待写数据进入EEDATA<br /> BSF EECON1,WREN<br /> BCF INTCON,GIE<br /> MOVLW 55H<br /> MOVWF EECON2<br /> MOVLW 0AAH<br /> MOVWF EECON2<br /> BSF EECON1,WR<br /> NOP<br /> NOP<br /> RETURN</p><p>WREEB ;写B,TEMP传送写入数据<br /> BCF STATUS,RP0 ;取BANK0<br /> MOVF EEADDRB,W ;取A地址<br /> BSF STATUS,RP0 ;取BANK1<br /> MOVWF EEADR ;A地址进入EEADR<br /> BCF STATUS,RP0 ;取BANK0<br /> MOVF TEMP,W ;取写入数据<br /> BSF STATUS,RP0 ;取BANK1<br /> MOVWF EEDATA ;待写数据进入EEDATA<br /> BSF EECON1,WREN<br /> BCF INTCON,GIE<br /> MOVLW 55H<br /> MOVWF EECON2<br /> MOVLW 0AAH<br /> MOVWF EECON2<br /> BSF EECON1,WR<br /> NOP<br /> NOP<br /> RETURN</p><p>DELAY<br /> MOVLW 10H ;外循环常数<br /> MOVWF DELY1 ;外循环寄存器<br />LOP0 MOVLW 0FFH ;中循环常数<br /> MOVWF DELY2 ;中循环寄存器<br />LOP1 MOVLW 0EEH ;内循环常数<br /> MOVWF DELY3 ;内循环寄存器<br />LOP2 DECFSZ DELY3 ;内循环寄存器递减<br /> GOTO LOP2 ;继续内循环<br /> DECFSZ DELY2 ;中循环寄存器递减<br /> GOTO LOP1 ;继续中循环<br /> DECFSZ DELY1 ;外循环寄存器递减<br /> GOTO LOP0 ;继续外循环<br /> RETURN</p><p>DELAY1 MOVLW 9FH ;外循环常数<br /> MOVWF DELY1 ;外循环寄存器<br />LOOP0 MOVLW 0FFH ;中循环常数<br /> MOVWF DELY2 ;中循环寄存器<br />LOOP1 DECFSZ DELY2 ;中循环寄存器递减<br /> GOTO LOOP1 ;继续中循环<br /> DECFSZ DELY1 ;外循环寄存器递减<br /> GOTO LOOP0 ;继续外循环<br /> RETURN</p><p>END</p></div><p>开源啊,,,真是好人哦。</p> |
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