仿真原理图如下(proteus仿真工程文件可到本帖附件中下载)
8086芯片源码如下:
;====================================================================
; Main.asm file generated by New Project wizard
;
; Created: 周二 11月 27 2018
; Processor: 8086
; Compiler: MASM32
;
; Before starting simulation set Internal Memory Size
; in the 8086 model properties to 0x10000
;====================================================================
CODE SEGMENT
ASSUME CS:CODE
IOCON EQU 8006H
IOA EQU 8000H
IOB EQU 8002H
IOC EQU 8004H
START:
MOV AL,90H
MOV DX,IOCON
OUT DX,AL
NOP
START1: NOP
NOP
MOV AL,0
MOV DX,IOA
IN AL,DX
NOP
NOP
MOV DX,IOB
OUT DX,AL
JMP START1
CODE ENDS
END START
全部资料51hei下载地址:
8255.zip
(67.72 KB, 下载次数: 43)
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