【正文】 TI, $CLR TIPOP PSWPOP ACCRET。成功開鎖狀態(tài)顯示XSB:PUSH ACCPUSH PSWMOV A, TIMERS1MOV DPTR, TABMOVC A, @A+DPTRMOV SBUF, AJNB TI, $CLR TIMOV SBUF, 0FEHJNB TI, $CLR TIMOV SBUF, 0FEHJNB TI, $CLR TIMOV SBUF, 10HJNB TI, $CLR TIMOV SBUF, 10HJNB TI, $CLR TIMOV SBUF, 10HJNB TI, $CLR TIPOP PSWPOP ACCRET。密碼輸入及修改狀態(tài)XSC:PUSH ACCPUSH PSWLCALL KILLXSSETB RS1 。切換到第三組寄存器。防止操作數(shù)讀取錯(cuò)誤。MOV R6, TIMERSMOV A, R6SUBB A, 01HJNC SC0JZ SC1SC0:MOV SBUF, 0FEHJNB TI, $CLR TISC1:MOV A, R6SUBB A, 02HJNC SC11JNZ SC2SC11:MOV SBUF,0FEHJNB TI, $CLR TISC2:MOV A, R6SUBB A, 03HJNC SC22JNZ SC3SC22:MOV SBUF, 0FEHJNB TI, $CLR TISC3:MOV A, R6SUBB A, 04HJNC SC33JNZ SC4SC33:MOV SBUF, 0FEHJNB TI, $CLR TISC4:MOV A, R6SUBB A, 05HJNC SC44JNZ SC5SC44:MOV SBUF, 0FEHJNB TI, $CLR TISC5:MOV A, R6SUBB A, 06HJNC SC55JNZ SC6SC55:MOV SBUF, 0FEHJNB TI, $CLR TISC6:MOV A, R6SUBB A, 07HJNC SC66JNZ EXIT_CSC66:MOV SBUF, 0FEHJNB TI, $CLR TINOPNOPEXIT_C:NOPCLR RS1POP PSWPOP ACCNOPRET。密碼輸入錯(cuò)誤的提示XSD:PUSH ACCPUSH PSWMOV SBUF, 98HJNB TI, $CLR TIMOV SBUF, 79HJNB TI, $CLR TIMOV SBUF, 11HJNB TI, $CLR TIMOV SBUF, 79HJNB TI, $CLR TIMOV SBUF, 79HJNB TI, $CLR TIMOV SBUF, 38HJNB TI, $CLR TIPOP PSWPOP ACCRET。鎖定狀態(tài)顯示XSE:PUSH ACCPUSH PSWMOV SBUF, 0FEHJNB TI, $CLR TIMOV SBUF, 54HJNB TI, $CLR TIMOV SBUF, 39HJNB TI, $CLR TIMOV SBUF, 11HJNB TI, $CLR TIMOV SBUF, 3DHJNB TI, $CLR TIMOV SBUF, 0FEHJNB TI, $CLR TIPOP PSWPOP ACCRETXSF:PUSH ACCPUSH PSWMOV SBUF, 98HJNB TI, $CLR TIMOV SBUF, 38HJNB TI, $CLR TIMOV SBUF, 39HJNB TI, $CLR TIMOV SBUF, 39HJNB TI, $CLR TIMOV SBUF, 3DH JNB TI, $CLR TIMOV SBUF, 98HJNB TI, $CLR TIPOP PSWPOP ACCRETKILLXS:PUSH ACCPUSH PSWMOV R7, 06HLOOP_XS:MOV SBUF, 0FFHJNB TI, $CLR TIDJNZ R7,LOOP_XSNOPPOP PSWPOP ACCRETTAB: DB 11H,0D7H,32H,92H,0D4H,98H,18H,0D1H,10H,90H ,0FFH。******* 24C02讀寫程序******AT_RADE:PUSH PSWPUSH ACCMOV R0,AT1 。CPU首地址MOV R6,06H 。8字節(jié)MOV R5,08H 。8位MOV R7,00H 。24C02首地址LCALL READ 。讀數(shù)據(jù)NOPNOPPOP ACCPOP PSWRETAT_WR:PUSH PSWPUSH ACCMOV R0,PS1 。CPU RAM首地址MOV R6,06H 。8字節(jié)MOV R5,08H 。8 BITMOV R7,00H 。24C02 RAM 首地址LCALL WRT 。先寫進(jìn)NOPNOPPOP ACCPOP PSWRET。讀串行器件 R0:RAM的起始地址,R5:位計(jì)數(shù)器,。R6:讀的字節(jié)數(shù)，R7:讀的起始地址READ: NOPNOPLCALL START0MOV A,0A0HLCALL WRBLCALL ACKJB F0,RD_FAILMOV A,R7LCALL WRBLCALL CHKJB F0,RD_FAILLCALL START0MOV A,0A1HLCALL WRBLCALL CHKJB F0,RD_FAILRD_N: NOPNOPLCALL RDBMOV @R0,ADJNZ R6,GO_ACKLCALL N_ACKRD_FAIL:NOPLCALL STOPMOV A,0FFHRET。GO_ACK: NOPNOPDEC R0LCALL ACKJMP RD_N。寫串行器件 R0:RAM的起始地址,R5:位計(jì)數(shù)器,。R6:寫的字節(jié)數(shù)(頁)，R7:寫的起始地址WRT: NOPNOPLCALL START0MOV A,0A0HLCALL WRBYTLCALL CHKJB F0,WR_FAILMOV A,R7LCALL WRBYTLCALL CHKJB F0,WR_FAILWR_N: NOPNOPMOV A,@R0LCALL WRBYTLCALL CHKJB F0,WR_FAILDEC R0DJNZ R6,WR_NWR_FAIL:NOPLCALL STOPMOV A,0FFHRET。START0: NOPNOPSETB SDASETB SCLNOPNOPCLR SDANOPNOPCLR SCLNOPRETSTOP: NONOPCLR SDASETB SCLNOPNOPSETB SDANOPNOPCLR SCLNOPRETACK: NOPNOPCLR SDASETB SCLNOPNOPCLR SCLSETB SDANOPRETN_ACK: NOPNOPSETB SDASETB SCLNOPNOPCLR SCLCLR SDANOPRETCHK: NOPNOPSETB SDANOPNOPSETB SCLNOPNOPMOV C,SDAMOV F0,CCLR SCLNOPNOPRETRDB: NOPNOPSETB SDAMOV R5,8RD_B: NOPNOPCLR SCLNOPNOPSETB SCLNOPNOPMOV C,SDARLC ANOPNOPSETB SDACLR SCLDJNZ R5,RD_BNOPRET。一字節(jié)數(shù)據(jù)發(fā)送子程序WRBYT: MOV R5,8WLP: RLC AJC WR1CLR SDASETB SCLNOPNOPCLR SCLDJNZ R5,WLPRETWR1: SETB SDASETB SCLNOPNOPCLR SCLCLR SDADJNZ R5,WLPRET。WRB: NOPNOPMOV R5,8WR_B: NOPSETB SDAJC WR_1CLR SDANOPWR_1: SETB SCLNOPNOPCLR SCLNOPCLR SDANOPDJNZ R5,WR_BNOPRET。 ******* 毫秒延時(shí)程序 *********T10MSD:SETB RS0MOV R4, 12TM:MOV R3, 128TM6:DJNZ R3, TM6DJNZ R4, TMCLR RS0RETT100MSD:MOV R3, 200D11:MOV R4, 125D12:DJNZ R4, D12DJNZ R3, D11RETT500MSD:LCALL T100MSDLCALL T100MSDLCALL T100MSDLCALL T100MSDLCALL T100MSDNOPRETSEC:SETB RS1MOV R7, 0AHSEC_LP:LCALL T100MSDDJNZ R7,SEC_LPNOPCLR RS1RET