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51 single chip microcomputer: D / a digital to analog conversion experiment

2022-04-23 03:33:00 【Li Xingye】

51 Single chip microcomputer ：D/A Digital to analog conversion experiment

One 、 Experimental content
utilize 0832 D/A Digital to analog conversion output square wave .
Two 、 Simulation diagram
![ Insert picture description here ](https://img-blog.csdnimg.cn/20201112202127681.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQzNDQxMjg0,size_16,color_FFFFFF,t_70#pic_center

3、 ... and 、 Code
C Language implementation ：

Assembly implementation ：

       CS0832 EQU 0FFE8H
       ORG 0000H
	   LJMP START
	   ORG 0030H
START: MOV SP,#60H
       MOV DPTR,#CS0832
	   SETB P1.0
	   CLR P1.1
	   SETB P1.2

MLOOP: MOV A,#00H  ; square wave 
       MOVX @DPTR,A
	   LCALL DELAY 
	   MOV A,#0FFH
	   MOVX @DPTR,A
	   LCALL DELAY
	   SJMP MLOOP

DELAY:	MOV R6,#020H
DELAY1:	MOV R5,#000H
		DJNZ R5,$
		DJNZ R6,DELAY1 ; ff*ff
		RET
		END

Square wave pattern
Insert picture description here

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本文为[Li Xingye]所创，转载请带上原文链接，感谢
https://yzsam.com/2022/04/202204220605386872.html

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