标题: 来个大神帮我看下LCD上不显示数据是什么原因 [打印本页]
作者: jiangyuwen    时间: 2017-2-28 16:38
标题: 来个大神帮我看下LCD上不显示数据是什么原因

DO口到D7口好像不工作
下面是代码：
  1. #include <reg52.h>
  2. #include <intrins.h>
  3. #include <stdio.h>
  4. #include <absacc.h>
  5. #define uchar unsigned char
  6. #define uint unsigned int

  8. #define CON XBYTE[0xfb00]
  9. #define PA XBYTE[0xf800]
  10. #define PB XBYTE[0xf900]
  11. #define PC XBYTE[0xfa00]

  13. uchar code SMG_CODE[] = {/*0,1,2,3,4,5,6,7,8,9,空,*/
  14. 0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xFF,0xbf};
  15. uchar array[8] = {10,10,10,10,10,10,10,0};
  16. sbit SB1 = P1^0;
  17. sbit BUZ = P1^1;

  19. uchar a = 0;

  21. uint H_Time,L_Time;
  22. unsigned long PL;
  23. unsigned long ZQ;

  25. void delayms(uint x)
  26. {
  27.   uchar i;
  28.   while(x--)for(i = 0;i < 120; i++);
  29. }
  30. extern void Init_1602(void);
  31. extern void Xian_String(uchar x,uchar y,uchar *p);
  32. //主函数
  33. void main(void)
  34. {        
  35.         uchar Buffer[20];
  36.         CON = 0x03;
  37.   //初始化
  38.   TMOD = 0x11;
  39.   TH0 = (65536 - 4000)>>8;
  40.   TL0 = (65536 - 4000)&0xff;
  41.   ET0 = 1;
  42.   EA = 1;
  43.   TR0 = 1;
  44.         TH1 = TL1 = 0;
  45.         TR1 = 0;
  46.         EX0 = 1;
  47.         IT0 = 1;
  48.         EX1 = 1;
  49.         IT1 = 1;
  50.         TR1 = 1;
  51.         Init_1602();
  52.         delayms(100);
  53.   while(1)
  54.   {
  55.                 PL = 1000000/ZQ;
  56.                 sprintf(Buffer,"%ldHZ ZQ:%ld",PL,ZQ);
  57.                 Xian_String(0,0,Buffer);
  58.                 sprintf(Buffer,"MaiKuan:%d",H_Time);
  59.                 Xian_String(1,0,Buffer);
  60.                 while(SB1 == 0)BUZ = 0;
  61.                 delayms(1000);
  62.                 BUZ = 1;
  63.   }
  64. }

  66. void EX0_IT0(void) interrupt 0
  67. {
  68.         H_Time = TH1<<8|TL1;
  69.         TH1 = TL1 = 0;
  70.         ZQ = H_Time+L_Time;
  71. }


  74. void EX1_IT1(void) interrupt 2
  75. {
  76.         L_Time = TH1<<8|TL1;
  77.         TH1 = TL1 = 0;
  78. }

  80. void ET0_T0(void) interrupt 1
  81. {
  82.   static uchar i = 0,Wei = 0x01;
  83.   TH0 = (65536 - 4000)>>8;
  84.   TL0 = (65536 - 4000)&0xff;
  85.   PB = 0x00;
  86.   PA = SMG_CODE[array[i]];
  87.   PB = Wei;
  88.   Wei<<=1;
  89.   if(++i == 8){i = 0; Wei = 0x01;}
  90. }

  92. #include <reg52.h>
  93. #include <intrins.h>
  94. #include <absacc.h>
  95. #define uchar unsigned char
  96. #define uint unsigned int

  98. #define PA XBYTE[0x0001]

  100. sbit RS = P1^2;
  101. sbit RW = P1^3;
  102. sbit E = P1^4;

  104. void delayXms(uint x)
  105. {
  106.   uchar i;
  107.   while(x--)for(i = 0; i < 120; i++);
  108. }

  110. void Write_Data(uchar x)
  111. {
  112.   delayXms(1);
  113.   RS = 0;
  114.   RW = 0;
  115.   PA = x;
  116.   E = 1;
  117.   _nop_();
  118.   E = 0;
  119.   RW = 1;
  120. }

  122. void Write_Order(uchar x)
  123. {
  124.   delayXms(1);
  125.   RS = 1;
  126.   RW = 0;
  127.   PA = x;
  128.   E = 1;
  129.   _nop_();
  130.   E = 0;
  131.   RW = 1;
  132. }

  134. void Init_1602(void)
  135. {
  136.   Write_Order(0x38);
  137.   Write_Order(0x38);
  138.   Write_Order(0x08);
  139.   Write_Order(0x01);
  140.   Write_Order(0x06);
  141.   Write_Order(0x0c);
  142. }

  144. void Xian_String(uchar x,uchar y,uchar *p)
  145. {
  146.   uchar i = 0;
  147.   y |= 0x80;
  148.   if(x == 1)y |= 0x40;
  149.   Write_Order(y);
  150.   while(p[i] != 0)
  151.   {
  152.     Write_Data(p[i++]);
  153.   }
  154. }
复制代码
作者: 1650188765    时间: 2017-2-28 18:57
额，真是太长了
作者: jiangyuwen    时间: 2017-2-28 19:02
数据显示出来了，但是是乱码
作者: jiangyuwen    时间: 2017-2-28 19:21
我想让LCD上显示频率周期和脉宽怎么设置的
作者: wosiyabo    时间: 2017-2-28 21:00

作者: ahshmj    时间: 2017-3-1 17:27
8255初始化了吗？
作者: minmin123    时间: 2017-3-1 19:22
数据有误
作者: yu77788    时间: 2017-3-1 19:41
没初始化
作者: 王杰    时间: 2017-3-1 22:04
#include <reg52.h> #include <intrins.h> #include <absacc.h> #define uchar unsigned char #define uint unsigned int  #define PA XBYTE[0x0001]  sbit RS = P1^2; sbit RW = P1^3; sbit E = P1^4;  void delayXms(uint x) {   uchar i;   while(x--)for(i = 0; i < 120; i++); }  void Write_D
作者: jiangyuwen    时间: 2017-3-2 11:28
王杰 发表于 2017-3-1 22:04
#include  #include  #include  #define uchar unsigned char #define uint unsigned int  #define PA XBYT ...

谢谢
作者: 2922470261    时间: 2017-3-2 13:40
初始化



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