利用2051单片机烧录24C02，04,08,16 作者： 时间：2016-11-30 来源：网络 加入技术交流群 扫码加入和技术大咖面对面交流海量资料库查询 收藏 <a href='https://ad.eepw.com.cn/www/delivery/ck.php?n=a635e61e&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='https://ad.eepw.com.cn/www/delivery/avw.php?zoneid=88&cb=INSERT_RANDOM_NUMBER_HERE&n=a635e61e' border='0' alt='' /></a> <a href='https://ad.eepw.com.cn/www/delivery/ck.php?n=a576c0a2&cb=INSERT_RANDOM_NUMBER_HERE' target='_blank'><img src='https://ad.eepw.com.cn/www/delivery/avw.php?zoneid=87&cb=INSERT_RANDOM_NUMBER_HERE&n=a576c0a2' border='0' alt='' /></a> A2: CLR P1.7SETB P3.7JB P1.6,$LCALL M001JNB P1.6,$SETB P1.7MOV 39H,#0A0H;写第一页MOV 38H,#0A1H;读第一页MOV 37H,#1;总页数A3: JB P1.5,A4JB P1.4,A01MOV 37H,#1;00---C02JMP A02A01: MOV 37H,#2;01---C04JMP A02A4: JB P1.4,A5MOV 37H,#4;10---C08JMP A02A5: MOV 37H,#8;11---C16A02:X24C021:MOV 40H,#0;位置MOV 43H,#0FFH;一页总数X24C022:LCALL R24C02;MOV 41H,32H;CALL W24C02INC 40HDJNZ 43H,X24C022MOV 40H,#0;位置MOV 43H,#0FFH;一页总数INC 39HINC 39HINC 38HINC 38HDJNZ 37H,X24C022MOV 39H,#0A0H;写第一页MOV 38H,#0A1H;读第一页MOV 37H,#1;总页数D24C021:MOV 40H,#0;位置MOV 43H,#0FFH;一页总数D24C022:LCALL R24C02;MOV 41H,32H;CALL R24C02_1MOV A,32HCJNE A,41H,D24C023INC 40HDJNZ 43H,D24C022MOV 40H,#0;位置MOV 43H,#0FFH;一页总数INC 39HINC 39HINC 38HINC 38HDJNZ 37H,D24C022JMP A2D24C023:SETB P1.7CLR P3.7JB P1.6,$LCALL M001JNB P1.6,$CALL M003JMP A2W24C02: LCALL START1;开始子程序MOV A,39H;写模式LCALL WRITE;写数据MOV A,40H;存储位置LCALL WRITEMOV A,41H;存储数据LCALL WRITELCALL STOP1;结束LCALL M001RETM001: MOV 30H,#1M002: MOV 31H,#248DJNZ 31H,$DJNZ 30H,M002RETM003: MOV 3AH,#4M004: MOV 3BH,#248M005: MOV 3CH,#248DJNZ 3CH,$DJNZ 3BH,M005DJNZ 3AH,M004RETR24C02: LCALL START;开始子程序MOV A,39HLCALL WRITE0MOV A,40H;存储位置LCALL WRITE0LCALL STARTMOV A,38H;读模式LCALL WRITE0LCALL READ;读取数据LCALL STOPRETR24C02_1:LCALL START1;开始子程序MOV A,39HLCALL WRITEMOV A,40H;存储位置LCALL WRITELCALL START1MOV A,38H;读模式LCALL WRITELCALL READ_1;读取数据LCALL STOP1RETWRITE0: MOV R7,#8WRITE01:RLC AMOV SDA,CSETB SCLNOPNOPNOPNOPCLR SCLNOPDJNZ R7,WRITE01NOPNOPNOPLCALL ACKNOPNOPRET;写WRITE: MOV R7,#8WRITE1: RLC AMOV SDA1,CSETB SCL1NOPNOPNOPNOPCLR SCL1NOPDJNZ R7,WRITE1NOPNOPNOPLCALL ACK1NOPNOPRET;读READ: MOV R7,#8READ1: SETB SDASETB SCLMOV C,SDARLC AMOV 32H,ANOPNOPNOPNOPCLR SCLDJNZ R7,READ1LCALL NACKNOPNOPRET;读READ_1: MOV R7,#8READ01: SETB SDA1SETB SCL1MOV C,SDA1RLC AMOV 32H,ANOPNOPNOPNOPCLR SCL1DJNZ R7,READ01LCALL NACK1NOPNOPRET;应答ACK: CLR SDA ;响应程序段 应答程序NOPSETB SCLNOPNOPNOPNOPCLR SCLNOPNOPRETNACK: SETB SDA ;非应答程序段NOPNOPSETB SCLNOPNOPNOPNOPCLR SCLNOPRET;开始START: SETB SCLSETB SDANOPNOPCLR SDANOPNOPNOPNOPCLR SCLRET;结束STOP: SETB SCLCLR SDANOPNOPNOPNOPSETB SDARET;*********************************************;应答ACK1: CLR SDA1 ;响应程序段 应答程序NOPSETB SCL1NOPNOPNOPNOPCLR SCL1NOPNOPRETNACK1: SETB SDA1 ;非应答程序段NOPNOPSETB SCL1NOPNOPNOPNOPCLR SCL1NOPRET;开始START1: SETB SCL1SETB SDA1NOPNOPCLR SDA1NOPNOPNOPNOPCLR SCL1RET;结束STOP1: SETB SCL1CLR SDA1NOPNOPNOPNOPSETB SDA1RETend 上一页 1 2 下一页
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