使用電腦控制家電-資料下載頁
2025-08-22 09:37本頁面
【正文】 ajmp deng FAS:NOPRETI SHOU:MOV R0,00HMOV IE,R0MOV @R1,SBUF。MOV P1,000hMOV A,@R1。顯示保存的數(shù)據(jù)MOV SBUF,AMOV R4,02HDA:MOV R5,10HDJNZ R5,$DJNZ R4,DAMOV A,@R1INC R1INC R0MOV P1,0ffhCJNE A,077H,XIA。77只教師，不保存AJMP FD3XIA:CJNE A,0FFH,DENG。沒收到結(jié)束標(biāo)志ff，繼續(xù)接收MOV IE,000H FD3:。判斷口令6839757，70h76hmov R0,070HCJNE @R0,006H,ZANTING1INC R0CJNE @R0,008H,ZANTING1INC R0CJNE @R0,003H,ZANTING1INC R0CJNE @R0,009H,ZANTING1INC R0CJNE @R0,007H,ZANTING1INC R0CJNE @R0,005H,ZANTING1INC R0CJNE @R0,007H,ZANTING1INC R0NOPNOPNOPMOV 58H,07FH。要寫的個(gè)數(shù)MOV R0,070H。緩沖首地址MOV 08H,000H。24存入的首地址L8:MOV SP,60H。堆棧指針。MOV Address,00H MOV 09H,@R0LCALL I2C_WRITE。寫入數(shù)據(jù) NOPNOPNOPINC 08HINC R0DJNZ 58H,L8MOV 5FH,7FHMOV A,079MOV SBUF,A。將秒通過串口發(fā)送出去ZANTING1:NOPMOV A,5FHCPL AMOV P1,AMOV R0,92HMOV IE,R0RETIXIANGLING:CLR TR0MOV R1,070H。響鈴子程序BISHI:MOV A,@R1CJNE A,50H,XIANGSHIINC R1MOV A,@R1CJNE A,51H,XIANGSHI2MOV P2,000HNOPNOPMOV R6,04FHD3:MOV R4,0FFHD2:MOV R5,0FFHDJNZ R5,$DJNZ R4,D2DJNZ R6,D3NOPNOPNOPNOPNOPNOPMOV P2,0FFHMOV 52H,00DHAJMP FAN1 XIANGSHI:INC R1XIANGSHI2:INC R1。MOV A,@R1CJNE A,07EH,BISHI。判斷結(jié)束FAN1:。SETB TR0RET 。。。。。。。MOV SP,60H。堆棧指針MOV Address,00H MOV I2CData,55H LCALL I2C_WRITE。寫入數(shù)據(jù)MOV I2CDATA,0AAH 。MOV Address,00H LCALL I2C_READMOV I2CData,A。讀出數(shù)據(jù) NOP NOPRET。寫一個(gè)字節(jié) Address地址 I2CDatata寫入的數(shù)據(jù)I2C_WRITE: nopI2C_WRITE_A: LCALL I2C_START MOV A,10100000B LCALL I2C_SEND8BIT LCALL I2C_ACK JC I2C_WRITE_A 。=1,表示無確認(rèn),再次發(fā)送MOV A,Address LCALL I2C_SEND8BIT LCALL I2C_ACKMOV A,I2CData LCALL I2C_SEND8BIT LCALL I2C_ACK LCALL I2C_STOP RET。讀一個(gè)字節(jié) Address地址 Data讀出的數(shù)據(jù)I2C_READ:nopI2C_READ_A: LCALL I2C_START MOV A,10100000B LCALL I2C_SEND8BIT LCALL I2C_ACK JC I2C_READ_A 。=1,表示無確認(rèn),再次發(fā)送MOV A,Address LCALL I2C_SEND8BIT LCALL I2C_ACKI2C_READ_B: LCALL I2C_START MOV A,10100001B LCALL I2C_SEND8BIT LCALL I2C_ACK JC I2C_READ_BLCALL I2C_RECEIVE8BIT MOV I2CData,A LCALL I2C_ACK LCALL I2C_STOP RET 。======================================================= 。發(fā)送開始信號(hào) I2C_START: SETB SCL SETB SDA NOP NOP CLR SDA NOP NOP CLR SCL RET 。======================================================= 。發(fā)送結(jié)束信號(hào) I2C_STOP: CLR SDA NOP NOP SETB SCL NOP NOP SETB SDA RET 。======================================================= 。發(fā)送接收確認(rèn)信號(hào) I2C_ACk: SETB SDA SETB SCL NOP NOP JB SDA,I2C_ACK0 CLR C SJMP I2C_ACK_END I2C_ACK0: SETB C I2C_ACK_END: CLR SCL RET 。======================================================= 。送八位數(shù)據(jù) I2C_SEND8BIT: MOV B,08H I2C_SEND8BIT_A: RLC AMOV SDA,C SETB SCL NOP NOP CLR SCL DJNZ B,I2C_SEND8BIT_A RET 。======================================================= 。接收八位數(shù)據(jù) I2C_RECEIVE8BIT: MOV B,08H CLR A SETB SDA I2C_RECEIVE8IT_A: SETB SCL NOP NOP MOV C,SDA RLC A CLR SCL DJNZ B,I2C_RECEIVE8IT_ARETEND
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