单片机实验内容（国外英文资料）.docVIP

单片机实验内容（国外英文资料） Experiment 1: application of MCS51 single-chip microcomputer development environment The content of the data memory 40H ~ 4FH is assigned to 00H ~ 0FH and the contents of 40H ~ 4FH are copied to 50H ~ 5FH. ORG 0000 h AJMP START ORG 0100 h START: MOV R0, # 40 h MOV. A, # 0 h MOV, B # 10 h. L: MOV @ R0, a. INC R0 INC., A DJNZ B, L MOV R0, # 40 h MOV R1, # 50 h MOV B, # 8 h L1: A, MOV @ R0 INC R0 ADD A, @ R0 MOV @ R1, a. INC R0 INC R1 DJNZ B, L1 The END The contents of the 40H ~ 4FH of the data store are assigned as 00H ~ 0FH, and the sum of two and two is delivered to the data space of 50H ~ 57H. ORG 0000 h LJMP START ORG 0100 h START: MOV R2, # 10 h MOV R0, # 40 h MOV. A, # 00 h LP: MOV @r0, A INC R0 INC., A DJNZ R2, LP MOV R2, # 8 h MOV R0, # 40 h MOV R1, # 50 h LP1: MOV. A, @ R0 INC R0 ADD A, @ R0 MOV @ R1, a. INC R0 INC R1 DJNZ R2, LP1 SJMP $ The END Experiment two McS-51 assembly language typical algorithm programming The 2.1 will be sorted from large to small in 16 disordered Numbers from 40 to 4F ORG 0000 h LJMP START ORG 0100 h START: MOV. A, # 40 h MOV R1, a. MOV A, # 10 h. MOV R5, a. The CLR F0 DEC R5 A, MOV @ R1 LOOP: MOV R3, a. INC R1 The CLR C A, MOV @ R1 SUBB A, R3 JC LOOP1 SETB F0 MOV A, R3 XCH A, @ R1 DEC R1 XCH A, @ R1 INC R1 LOOP1: MOV. A, @ R1 DJNZ R5, LOOP JB F0, START RET The END RET RET The END 2.2 will consist of two ASCII representations (the hexadecimal system is converted into a 2) 40 position with 8 position 41 positions and 8 conversion results in 42 H Experiment 3 single chip computer I/O experiment (2 hours) The 3.1 P1 is the outlet of the outlet, the eight light-emitting diodes, the program, makes the light-emitting diode cycle light. ORG 0000 h AJMP MAIN ORG 0100 h MAIN: MOV A, # 001 h R: MOV P1, A RL a. ACALL DEL AJMP R DEL: MOV R5, # 04H DEL1: MOV R6, # 0 FFH DEL2: MOV R7, # 0 FFH DEL3: DJNZ R7, DEL3 DJNZ R6, DEL2 DJNZ R5, DEL1 RET The END 3.2 P1.0, P1.1 as two toggle switch input port, P1.2, pick two leds, P1.3 as out