单片机控制ADC0804检测运放TL084的电压仿真

relchhiclty · 发表于 2019-1-4 14:08

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单片机控制ADC0804检测运放TL084的电压仿真
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下面这个是整体单片机系统的原理图：; u- b+ H3 [( }
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adc0804检测电压部分原理图：
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( O" Q$ C! o" m! Q7 `5 ~* x" x运放TL084产生电压部分的仿真：
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单片机汇编语言程序：
ORG 00H
ANL P1,#0F0H
START: MOVX @R0,A

WAIT: JB P2.0,ADC
   CALL DISP
   JMP WAIT

ADC: MOVX A,@R0
   CALL L1
   MOV R1,#0FFH

DISP1: CALL DISP
   DJNZ R1,DISP1
   JMP START

L1: CLR C
MOV R5,#00H
MOV R4,#00H
MOV R3,#08H

NEXT: RLC A
   MOV R2,A
   MOV A,R5
   ADDC A,R5
   DA A
   MOV R5,A
   MOV A,R4
   ADDC A,R4
   MOV R4,A
   MOV A,R2
   DJNZ R3,NEXT
   MOV R7,#02

L2: MOV A,R5
ADD A,R5
DA A
MOV R5,A
MOV A,R4
DA A
MOV R4,A
DJNZ R7,L2
RET

DISP: MOV A,R5
   ANL A,#0FH
   ORL A,#10H
   MOV P1,A
   CALL DELAY
   MOV A,R5
   ANL A,#0F0H
   SWAP A
   ORL A,#20H
   MOV P1,A
   CALL DELAY
   MOV A,R4
   ANL A,#0FH
   ORL A,#40H
   MOV P1,A
   CALL DELAY
   MOV A,R4
   ANL A,#0F0H
   SWAP A
   ORL A,#80H
   MOV P1,A
   CALL DELAY
   CLR A
   RET

DELAY: MOV R6,#10

D1: MOV R7,#248
DJNZ R7,$
DJNZ R6,D1
RET
END

c语言程序：
#include"at89X52.h"
sbit LCD_RS =P2^0;
sbit LCD_RW =P2^1;
sbit LCD_E =P2^2;
sbit ADC_CS =P2^3;
sbit ADC_WR =P3^6;
sbit ADC_RD =P3^7;
#define LCD_DATA P0
unsigned char LcdBuf1[10]="";

unsigned char code Bmp001[][8]=
{
  {0x06,0x09,0x09,0x06,0x00,0x00,0x00,0x00},
  {0x06,0x09,0x10,0x10,0x10,0x09,0x06,0x00}
};

void dellay(unsigned int h)
{
  while(h--); //0.01MS
}

void WriteDataLcd(unsigned char wdata)
{
  LCD_DATA=wdata;
  LCD_RS=1;
  LCD_RW=0;
  LCD_E=0;
  dellay(1000);
  LCD_E=1;

}

void WriteCommandLcd(unsigned char wdata)
{
  LCD_DATA=wdata;
  LCD_RS=0;
  LCD_RW=0;
  LCD_E=0;
  dellay(1000);
  LCD_E=1;
}

void lcd_init(void)
{
  LCD_DATA=0;
  WriteCommandLcd(0x38);
  dellay(1000);
  WriteCommandLcd(0x38);
  dellay(1000);
  WriteCommandLcd(0x01);
  WriteCommandLcd(0x0c);

}

void display_xy(unsigned char x,unsigned char y)
{
  if(y==1)
x+=0x40;
x+=0x80;
WriteCommandLcd(x);
}

void display_string(unsigned char x,unsigned char y,unsigned char *s)
{
  display_xy(x,y);
  while(*s)
{
   WriteDataLcd(*s);
   s++;

}

}

void Write_CGRAM(unsigned char add,unsigned char *char_num)
{
  unsigned i;
  add=add<<3;
  WriteCommandLcd(0x40|add+8);
  for(i=0;i<8;i++)
{
   WriteDataLcd(*char_num++);

}

}

void delayms()
{
  int i;
  for(i=110;i>0;i--);

}
void delay1s()
{
  int i,j;
  for(i=1000;i>0;i--);
for(j=110;j>0;j--);
}

void convert()
{
  unsigned long value;
  char i;
  unsigned long res;
  int temp,temp2;
  int w;
  P1=0xff;
  ADC_RD=0;
  for(i=0;i<10;i++);
  value=P1;
  res=(float)(2550000+110000*value/30)/(2550-11*value/30);
  temp=(float)(res*10000-10000000)/3851-545;
  temp2 = temp;
  if(temp >= 0)
  {
  for(i=6;temp>0;i--)
{
   LcdBuf1=temp%10+48;7 B/ ~2 q, M$ A2 `: E8 I
temp/=10;& F+ x4 p3 H( w- M2 T
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  }
6 B% u- ?+ t# E* a) D, ]$ B: y  [  if(temp < 0 )
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w= -temp;5 C6 G% a4 s* Q
   for(i=6;w>0;i--)6 @; p: X3 ^3 @+ X. ]2 O
{
% n, N! D" K" ^8 o) ~$ r/ w    LcdBuf1=w%10+48;
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}
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% u" S# d2 F% Y& h  if(i>=0&&temp<0): V! j5 t5 |9 g. k% w& X% m
  {
0 n) u- H) w' n& \" I3 k) {  q+ l2 s    if(temp > -10)
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  LcdBuf1 = '0';- I; N: |6 D- I6 S* }  |
  i--;# X  m2 o4 T$ S/ n8 B4 u9 z4 F
  }
( f4 _9 x# f" P2 b: P& D# g  LcdBuf1 = '-';! ]0 H7 y) r% a8 |2 i5 E' \% S+ g1 P
  i--; 8 ~* i, A2 L; [) a0 n) @
/* if(i==5)0 K# s2 l6 T* T2 ?0 R% F
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  LcdBuf1[5] = '0';
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  }$ |9 \! b# p% W
  LcdBuf1[4] = '-';! n3 W; R3 W& N+ L5 m
  i--;  */
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  for(;i>=0;i--). K& V% C2 E2 H5 E; P+ j( R
  LcdBuf1=' ';
4 z+ K5 y0 a2 n  for(i=0;i<5;i++)
: Q3 P  c6 r4 v! z  r  LcdBuf1=LcdBuf1[i+1];
4 x3 H+ b( W; u( c1 f8 u  if(LcdBuf1[4]==' ')LcdBuf1[4]='0'; " c  Q, B2 b8 p2 u8 h) Y, H5 o
  LcdBuf1[5]='.';0 c$ r* P. |# L: A
  LcdBuf1[7]=1;
" j. V, O5 l# [* Y# U7 c  LcdBuf1[8]='C';* |. j5 k! M+ ]9 z
  WriteCommandLcd(0x84);
8 ]7 j& X9 Q* F5 e1 ~, E  display_string(3,0,LcdBuf1);  K  I/ i/ p5 j* g/ e
  ADC_RD=1;7 b  U* ]5 Q) ]9 X! W& ^( c
  ADC_WR=0;
3 `# D, X5 w& a, m- Y$ k; K  for(i=0;i<10;i++)" ?7 y# x8 m; @8 K! \+ b0 g
  ADC_WR=1;
, D0 Y% @9 ~$ H8 o* K$ L2 B' y4 n  delayms();
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main()
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" T5 v) s  X. s( ]" C: b  unsigned char i;
5 w/ Q+ D1 w$ h* A  J! U, y' _+ J  lcd_init();
# a4 h) o; {8 U) O1 e  for(i=0;i<2;i++)
2 h- l" y3 s9 ]( E- I  Write_CGRAM(i,Bmp001);1 [+ @4 _& w9 E2 h* ^, n
  ADC_CS=0;& q8 k9 J! t: N) {4 ]0 u
  ADC_WR=0;
7 [! i7 k* k9 d! r% j; K$ D  for(i=0;i<10;i++);, ^2 j  M$ r) z8 u9 M) ?
  ADC_WR=1;
# a/ M: `' k2 o. B% Y" J$ r. d  while(1)+ v' C0 w' ]2 k- C. @4 d% M
{
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xuzwg · 发表于 2019-1-4 18:00

这个方法不错

cj223356 · 发表于 2019-3-1 17:07

很不错，谢谢楼主分享

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单片机控制ADC0804检测运放TL084的电压仿真

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