單片機(jī)串行通信協(xié)議設(shè)計課程設(shè)計論文-資料下載頁
2025-05-14 08:56本頁面
【正文】 BUXU1 MOV SBUF,0A8H JNB TI,$ CLR TICHONG: JNB RI,$ 。接收原碼 CLR RI MOV 56H,SBUF JNB RI,$ 。接收反碼 CLR RI MOV A,SBUF XRL A,56H CJNE A,0FFH,CHUO LJMP DUI1CHUO: MOV SBUF,055H JNB TI,$ CLR TI MOV R5,14 MOV R4,00H LCALL CHANGE MOV R5,13 MOV R4,01H LCALL CHANGE LJMP CHONGDUI1: MOV SBUF,0AAH JNB TI,$ CLR TI MOV A,56H MOV B,0AH DIV AB MOV 51H,A MOV 50H,B MOV R5,50H 。將要顯示的數(shù)放入R5中 MOV R4,00H 。將要在第幾位上顯示放在R4中，最右邊是0位 2013 LCALL CHANGE MOV R5,51H 。將要顯示的數(shù)放入R5中 MOV R4,01H 。將要在第幾位上顯示放在R4中，最右邊是0位 2013 LCALL CHANGE MOV A,56H 。放在外部RAM MOV R0,57H MOVX @R0,A MOV A,57H INC A MOV R0,20H 。個數(shù)放在外部RAM MOVX @R0,A MOV 57H,A MOV SCON,40H RET 。**************************************************************************** RESTART : MOV IAP_CONTR,00100000B RETI。**************************************************************************** LIUSHUI: MOV R5,15 MOV R4,00H LCALL CHANGE MOV R5,15 MOV R4,01H LCALL CHANGE MOV R5,13 MOV R4,02H LCALL CHANGE MOV R5,16 MOV R4,03H LCALL CHANGE LCALL DELAY MOV R5,0 MOV R4,00H LCALL CHANGE MOV R5,15 MOV R4,01H LCALL CHANGE MOV R5,15 MOV R4,02H LCALL CHANGE MOV R5,13 MOV R4,03H LCALL CHANGE RET。**************************************************************************** DELAY: MOV A,66 MOV R2,A MOV R3,A MOV R1,ADELAY1: DJNZ R3,DELAY1 DJNZ R1,DELAY1 DJNZ R2,DELAY1 RET。**************************************************************************** SHU1: MOV R0,20H MOVX A,@R0 MOV 57H,A MOV DPTR,0030H MOV R0,0Q3: MOV A,R0 CJNE A,57H,Q1 LJMP Q2Q1: MOVX A,@R0 MOV SBUF,A 。串口輸出 JNB TI,$ CLR TI MOV B,10 DIV AB MOV 51H,A MOV 50H,B MOV R5,50H MOV R4,00H LCALL CHANGE MOV R5,51H MOV R4,01H LCALL CHANGE INC R0 MOV A,R0 。第幾個 MOV B,10 DIV AB MOV 51H,A MOV 50H,B MOV R5,50H MOV R4,02H LCALL CHANGE1 MOV R5,51H MOV R4,03H LCALL CHANGE LCALL DELAY LJMP Q3Q2: MOV 57H,00H RETI 。**************************************************************************** END17
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