单片机-串并转换

功能实现

/*************************************************** 本例主要演示串行转换成并行的功能实现：通过LED灯的闪亮显示（附带电路图）。

***************************************************/ //C语言格式

#include

#define uchar unsigned char

#define uint unsigned int

uint i,j;

uint date[] = {1,2,4,8,16,32,64,128};

//延时

void Delay(uint n){

for(i = 0; i

for(j = 0; j<100; j++);

}

}

void main(){

SCON = 0x0;

while(1){

for(j = 0; j<8; j++){

SBUF = date[j];

if(TI == 1){

TI = 0;

Delay(5);

}

}

}

}

//asm格式

ORG 0000H

AJMP START

ORG 0030H START:

MOV SCON,#0H

MOV 30H,#01H

MOV 31H,#02H

MOV 32H,#04H

MOV 33H,#08H

MOV 34H,#16

MOV 35H,#32

MOV 36H,#64

MOV 37H,#128

MOV R0,#30H

MOV R2,#8 LOOP:

MOV A,@R0

MOV SBUF,A

L0:

JNB TI,L0

CLR TI

ACALL DELAY

INC R0

DJNZ R2,LOOP

SJMP START

DELAY:

MOV R7,#3 DD1:

MOV R6,#0FFH DD2:

MOV R5,#0FFH

DJNZ R5,$

DJNZ R6,DD2

DJNZ R7,DD1

RET

END

电路图：