st7920指針式時鐘程序，在12864上總顯示不了，求大神，下面是程序

ID:398554 · 發表于 2019-1-1 22:11

#include <reg51.h>
#include <intrins.h>
#include<stdlib.h>
#include<math.h>

#define uchar unsigned char
#define uint  unsigned int
#define delayNOP(); {_nop_();_nop_();_nop_();_nop_();};
#define pi 3.1415926
/************* 12864LCD引腳定義 *************/
#define LCD_data  P0    //數據口
sbit LCD_RS  =  P1^0;    //寄存器選擇輸入
sbit LCD_RW  =  P1^1;    //液晶讀/寫控制
sbit LCD_EN  =  P1^2;    //液晶使能控制
sbit LCD_PSB =  P2^4;    //串/并方式控制
sbit LCD_RST =  P2^5;    //液晶復位端口
sbit k1=P3^5; //按鍵
sbit k2=P3^2;
sbit k3=P3^3;
sbit k4=P3^4;

sbit DQ = P1^7;                      //數據口define interface
uchar a,b,c,count,num;
uint temp;
uchar tabbjsj[]="北京時間";
uchar tabsswd[]="實時溫度";
uchar tab[]="01:00:00";
uchar code table[]={ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x0F,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0xF8,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x0E,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0x87,0x13,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x03,0xF7,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0x30,0x0E,0x30,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0x78,0x1C,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x3C,0xFC,0x38,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x79,0xDE,0x71,0xDE,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x79,0x9E,0x79,0x9E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x3C,0x3C,0x3C,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1E,0x3B,0x9E,0x78,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x0F,0xF7,0x0F,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xEF,0x37,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x03,0xDE,0x7B,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0xBC,0xFD,0x80,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x79,0xDE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x79,0x8E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x1E,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xF0,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,
0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x20,
0x00,0x01,0x9C,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0xC0,0x00,0x99,0x00,0x00,0x30,0x00,0x03,0x9A,0x00,0x0C,0x23,0x00,0x00,0x00,0x02,0xC6,
0x00,0x99,0x80,0x06,0xB4,0x00,0x02,0x21,0x00,0x06,0x33,0x00,0x10,0x80,0x07,0x26,0x00,0x98,0x00,0x12,0x88,0x00,0x02,0x24,0x80,0x06,0x3F,
0x00,0x1F,0xC0,0x05,0x26,0x00,0x15,0x00,0x1C,0x00,0x00,0x03,0x66,0x70,0x17,0x67,0x00,0x0F,0x00,0x01,0xBE,0x00,0x02,0x00,0x0E,0x70,0x00,
0x03,0x7E,0x00,0x17,0xE2,0x00,0x07,0x00,0x07,0x00,0x01,0xA0,0x40,0x18,0x00,0x00,0x06,0xCE,0x00,0x0E,0x62,0x00,0x07,0x00,0x03,0xA6,0x00,
0x9C,0x80,0x12,0x38,0x00,0x06,0x0F,0x80,0x06,0x62,0x00,0x06,0x00,0x03,0x08,0x00,0x84,0x00,0x10,0xF0,0x00,0x0C,0xFC,0x00,0x06,0x22,0x00,
0x1E,0x00,0x05,0x1C,0x00,0x1E,0x00,0x10,0x40,0x00,0x12,0x24,0x80,0x3E,0x42,0x00,0x1E,0x00,0x01,0x1C,0x00,0x04,0x00,0x10,0x80,0x00,0x02,
0x44,0xC0,0x3C,0x43,0x00,0x7F,0xF0,0x01,0x0E,0x00,0x04,0x00,0x11,0x10,0x80,0x02,0x64,0x80,0x00,0x03,0x00,0x20,0x00,0x00,0xFA,0x80,0x08,
0x00,0x13,0x08,0x80,0x02,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x00,0x00,0x18,0x00,0x00,0x07,0x00,0x02,0x0C,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00};
/*******************************************************************/
/*                                                                */
/*  延時函數                                                    */
/*                                                                */
/*******************************************************************/
void delay(int ms)
{
while(ms--)
{
   uchar i;
   for(i=0;i<150;i++)
   {
      _nop_();
_nop_();
_nop_();
_nop_();
   }
}
}

/*******************************************************************/
/*                                                                */
/*  精確延時函數，延時1秒，軟件算得                                                    */
/*                                                                */
/*******************************************************************/
void Delay_S(void) //延時1s誤差 0us
{
unsigned char a,b,c;
for(c=167;c>0;c--)
      for(b=171;b>0;b--)
         for(a=16;a>0;a--);
_nop_();  //if Keil,require use intrins.h
}
/*******************************************************************/
/*                                                                */
/*檢查LCD忙狀態                                                 */
/*lcd_busy為1時，忙，等待。lcd-busy為0時,閑，可寫指令與數據。    */
/*                                                                */
/*******************************************************************/
bit lcd_busy()
{
bit result;
LCD_RS = 0;
LCD_RW = 1;
LCD_EN = 1;
delayNOP();
result = (bit)(P0&0x80);
LCD_EN = 0;
return(result);
}
/*******************************************************************/
/*                                                                */
/*寫指令數據到LCD                                                 */
/*RS=L，RW=L，E=高脈沖，D0-D7=指令碼。                            */
/*                                                                */
/*******************************************************************/
void lcd_wcmd(uchar cmd)
{
while(lcd_busy());
LCD_RS = 0;
LCD_RW = 0;
LCD_EN = 0;
_nop_();
_nop_();
LCD_data = cmd;
delayNOP();
LCD_EN = 1;
delayNOP();
LCD_EN = 0;
}
/*******************************************************************/
/*                                                                */
/*寫顯示數據到LCD                                                 */
/*RS=H，RW=L，E=高脈沖，D0-D7=數據。                            */
/*                                                                */
/*******************************************************************/
void lcd_wdat(uchar dat)
{
while(lcd_busy());
LCD_RS = 1;
LCD_RW = 0;
LCD_EN = 0;
LCD_data = dat;
delayNOP();
LCD_EN = 1;
delayNOP();
LCD_EN = 0;
}
/*******************************************************************/
/*                                                                */
/*從lcd讀取數據到data                                           */
/*RS=H，RW=L，E=高脈沖，D0-D7=數據。                            */
/*                                                                */
/*******************************************************************/
uchar lcd_rdat()
{
uchar dat;
    while(lcd_busy());
   LCD_data = 0XFF;
LCD_RS = 1;
LCD_RW = 1;
LCD_EN = 0;
LCD_EN = 1;
dat = LCD_data;
LCD_EN = 0;
return(dat);
}

/*******************************************************************/
/*                                                                */
/*  LCD初始化設定                                                 */
/*                                                                */
/*******************************************************************/
void lcd_init()
{
LCD_PSB = 1;       //并口方式

LCD_RST = 0;    //液晶復位
delay(3);
LCD_RST = 1;
delay(3);

lcd_wcmd(0x34);    //擴充指令操作
delay(5);
lcd_wcmd(0x30);    //基本指令操作
delay(5);
lcd_wcmd(0x0C);    //顯示開，關光標
delay(5);
lcd_wcmd(0x01);    //清除LCD的顯示內容
delay(5);
}

/***********************************************************
函數名：  DrawPoint
函數說明：畫點
傳入參數：打點位置(x0,y0);color=1,點亮；color=0,擦除
傳出參數：無
返回值：  無
**********************************************************/
void DrawPoint(unsigned char x,unsigned char y,unsigned char color)
{
unsigned char row,collum,cbite;
unsigned char tempH,tempL;
lcd_wcmd(0x34);//打開擴充指令集
lcd_wcmd(0x36);//打開圖形顯示

collum=x>>4;
cbite=x&0x0f;

if(y<32)
row=y;
else
{
row=y-32;
collum+=8;
}

lcd_wcmd(0x80+row);//先寫Y坐標
lcd_wcmd(0x80+collum);//再寫X坐標
lcd_rdat();
tempH = lcd_rdat();//先讀出高字節
tempL = lcd_rdat();//再讀出低字節

lcd_wcmd(0x80+row);//先寫Y坐標
lcd_wcmd(0x80+collum);//再寫X坐標
if (color)
{
if(cbite<8)
{
tempH|=(1<<(7-cbite));

}
else
{

tempL|=(1<<(15-cbite));
}
}
else
{
   if(cbite<8)
   {
   tempH&=~(1<<(7-cbite));

   }
   else
   {

   tempL&=~(1<<(15-cbite));
   }
}
lcd_wdat(tempH);
lcd_wdat(tempL);
lcd_wcmd(0x30);
}
/***********************************************************
函數名：  line
函數說明：畫直線
傳入參數：直線起始位置(x0,y0);終點(x1,y1)
傳出參數：無
返回值：  無
**********************************************************/
void line(unsigned char x0,unsigned char y0, unsigned char x1,unsigned char y1,unsigned char color)
{
int dx;                      /* 直線x軸差值變量*/
int dy;                      /* 直線y軸差值變量 */
char dx_sym;                   /* x軸增長方向，為-1時減值方向，為1時增值方向 */
char dy_sym;                   /* y軸增長方向，為-1時減值方向，為1時增值方向 */
int dx_x2;                   /* dx*2值變量，用于加快運算速度*/
int dy_x2;                   /* dy*2值變量，用于加快運算速度*/
int di;                      /* 決策變量  */

if (x0 == x1)                      /* 畫垂直線 */
{
      if (y0 > y1)
      {
         dx = y0;
         y0 = y1;
         y1 = dx;
      }
      for (dx = y0; dx < y1+1; dx++)
      {
         DrawPoint(x0, dx,color);
      }
}

if (y0 == y1)                      /* 畫水平線 */
{
      if(x0 > x1)
      {
         dy = x0;
         x0 = x1;
         x1 = dy;
      }
      for (dy = x0; dy < x1+1; dy++)
      {
         DrawPoint(dy, y0,color);
      }
}

/****************************畫斜線******************************/
dx = x1-x0;                      /* 求取兩點之間的差值    */
dy = y1-y0;
if (dx > 0)                      /* 判斷x軸方向             */
{
      dx_sym = 1;                   /* dx>0，設置dx_sym=1    */
}
else
{
      if (dx < 0)
      {
         dx_sym = -1;             /* dx<0，設置dx_sym=-1    */
      }
}

if (dy > 0)                      /* 判斷y軸方向             */
{
      dy_sym = 1;                   /* dy>0，設置dy_sym=1    */
}
else
{
      if (dy < 0)
      {
         dy_sym = -1;             /* dy<0，設置dy_sym=-1    */
      }
}

dx = dx_sym * dx;                /* 將dx、dy取絕對值       */
dy = dy_sym * dy;
dx_x2 = dx*2;                      /* 計算2倍的dx及dy值       */
dy_x2 = dy*2;

                                    /* 使用Bresenham法進行畫直線 */
if (dx >= dy)                      /* 對于dx>=dy，則使用x軸為基準  */
{
      di = dy_x2 - dx;
      while(x0!=x1)
      {
         DrawPoint(x0, y0,color);
         x0 += dx_sym;
         if (di < 0)
         {
            di += dy_x2;          /* 計算出下一步的決策值       */
         }
         else
         {
            di += dy_x2 - dx_x2;
            y0 += dy_sym;
         }
      }
      DrawPoint(x0, y0,color);          /* 顯示最后一點                */
}
else                               /* 對于dx<dy，則使用y軸為基準 */
{
      di = dx_x2 - dy;
      while(y0!=y1)
      {
         DrawPoint(x0, y0,color);
         y0 += dy_sym;
         if (di < 0)
         {
            di += dx_x2;
         }
         else
         {
            di += dx_x2 - dy_x2;
            x0 += dx_sym;
         }
      }
      DrawPoint(x0, y0,color);          /* 顯示最后一點                */
}
}

/***********************************************************
函數名：  circle
函數說明：畫圓
傳入參數：圓心坐標（x1,y1），半徑r
傳出參數：無
返回值：  無
**********************************************************/
void circle(int x1, int y1, unsigned int r)
{
int x, y, d;
x = 0;
y = r;
d = 1-r;                   /* 計算初始值                                        */

while (x <= y)
{
      /* 繪制點(x,y)及其在八分圓中的另外7個對稱點          */
      DrawPoint(x1+x, y1+y,1);
      DrawPoint(x1+y, y1+x,1);
      DrawPoint(x1-y, y1+x,1);
      DrawPoint(x1-x, y1+y,1);
      DrawPoint(x1-x, y1-y,1);
      DrawPoint(x1-y, y1-x,1);
      DrawPoint(x1+y, y1-x,1);
      DrawPoint(x1+x, y1-y,1);

      if (d < 0)
      {
         d += 2*x+3;       /* 根據誤差項d的判斷,決定非最大位移方向上是走還是不走 */
      }
      else
      {
         d += 2*(x-y)+5;
         y--;
      }
      x++;
}
}

/*******************************************
函數名稱：void DrawHand(char x0,char y0,char a,char b,char c,char color)
功能：畫時鐘指針
參數：(x0,y0)表盤圓心坐標，
   R指針長度
   Time指針所指刻度（秒、分60進制，時12進制）
   step指針步長（秒、分為6，時為30）
   color指針顏色
返回值  ：無
********************************************/
void DrawHand(char x0,char y0,char R,char Time,char step,char color)
{
char x,y;
x=R*cos(Time*step*pi/180-pi/2)+x0;
y=R*sin(Time*step*pi/180-pi/2)+y0;
line(x0,y0,x,y,color);
}

/*******************************************
函數名稱：clr_screen(void)
功能：清除液晶GDRAM內部的隨機數據
參數：無
返回值  ：無
********************************************/
void clr_screen(void)
{

uchar i,j;
   for(j=0;j<64;j++)
    {
for(i=0;i<128;i++)
{
DrawPoint(i,j,0);
}
}
}

/*******************************************************************************
*  描述:                                                                      *
*    12864標準字庫液晶演示數據p0,控制p2                                  *
********************************************************************************/

#define x0 31
#define y0 31 //表盤圓心坐標

/***********************************************************
函數名：  DISP_BP
函數說明：畫表盤
傳出參數：無
返回值：  無
**********************************************************/
void DISP_BP(void)
{
circle(x0,y0,30);//畫圓

line(31,1,31,3,1);//12點
line(30,1,30,3,1);
line(32,1,32,3,1);
line(31,61,31,59,1);//6點
line(30,61,30,59,1);
line(32,61,32,59,1);
line(61,31,59,31,1);//3點
line(61,30,59,30,1);
line(61,32,59,32,1);
line(1,31,3,31,1);//9點
line(1,30,3,30,1);
line(1,32,3,32,1);
line(109,51,111,51,1);//℃符號
line(109,50,111,50,1);
line(109,49,111,49,1);
line(110,50,110,50,0);
circle(8,8,8); //耳朵左
line(16,7,16,11,0);
line(7,16,12,16,0);
line(15,12,11,15,0);
line(15,11,12,17,0);
line(12,15,12,15,0);
circle(54,8,8); //耳朵右
line(46,7,46,11,0);
line(55,16,50,16,0);
line(47,12,51,16,0);
line(47,11,47,11,0);
// line(48,14,48,14,1);
line(51,15,51,15,0);
}

/*****************顯示時分秒*****************/
void sfm(uchar add,uchar sfm)
{
uchar sfm1,sfm2;
sfm1=sfm/10;
sfm2=sfm%10;
lcd_wcmd(0x90+add);
lcd_wdat(0x30+sfm1);
lcd_wdat(0x30+sfm2);
}

void sfmfen()
{
uchar fen1,fen2;
fen1=b/10;
fen2=b%10;
lcd_wcmd(0x90+5);
lcd_wdat(0x3a);
lcd_wdat(0x30+fen1);
lcd_wdat(0x30+fen2);
}

//按鍵掃描函數
void keyscan()
{
// uchar i,j,k;
   if(k1==0)
delay(5);
if(k1==0)
{
while(!k1);
DrawHand(x0,y0,25,a,6,0); // 消除秒針位置
DrawHand(x0,y0,20,b,6,1); //顯示新的分針位置
DrawHand(x0,y0,15,c,6,1);//顯示新的時針位置
      a++;
if(a==60)
   a=0;
sfm(7,a);
         DrawHand(x0,y0,25,a,6,1); //顯示秒針位置
}

  if(k2==0)
delay(5);
if(k2==0)
{
while(!k2);
DrawHand(x0,y0,20,b,6,0); //消除原來分針位置
DrawHand(x0,y0,15,c,6,1);//顯示新的時針位置
DrawHand(x0,y0,25,a,6,1); //顯示秒針位置
b++;
if(b==60)
      b=0;
sfmfen();
DrawHand(x0,y0,20,b,6,1); //顯示新的分針位置
   }

if(k3==0)
delay(5);
if(k3==0)
{
while(!k3);
DrawHand(x0,y0,15,c,6,0);//消除原來的時針位置
DrawHand(x0,y0,25,a,6,1); //顯示秒針位置
DrawHand(x0,y0,20,b,6,1); //顯示新的分針位置
c++;
if(c==60)
c=0;
sfm(4,c/5);
DrawHand(x0,y0,15,c,6,1);//顯示新的時針位置

}
}

/*******************畫開機畫面********************/

void GUI_CLEAR(const uchar *pic)
{
uchar i,j,k;
lcd_wcmd(0X34);
lcd_wcmd(0X34);
for(i=0;i<2;i++)
{
for(j=0;j<32;j++)
{
lcd_wcmd(0X80+j);
delay(2);
if(i==0)
{
lcd_wcmd(0X80);
delay(2);

}
else
{
lcd_wcmd(0X88);
delay(2);
}
for(k=0;k<16;k++)
{
lcd_wdat(*(pic++));
//LCD_WRITE_DATA(0X00);
delay(2);
}
}
}

lcd_wcmd(0X36);
lcd_wcmd(0X30);
}

  /********************DS18B20***********************************/
void delay18b20(unsigned char i)
{
while(--i);
}

void Init_Ds18b20(void)    //DS18B20初始化send reset and initialization command
{
DQ = 1;                   //DQ復位,不要也可行。
delay18b20(1);                //稍做延時
DQ = 0;                   //單片機拉低總線
delay18b20(250);             //精確延時，維持至少480us
DQ = 1;                   //釋放總線，即拉高了總線
delay18b20(100);             //此處延時有足夠,確保能讓DS18B20發出存在脈沖。
}

uchar Read_One_Byte()    //讀取一個字節的數據read a byte date
                        //讀數據時,數據以字節的最低有效位先從總線移出
{
uchar i = 0;
uchar dat = 0;
for(i=8;i>0;i--)
{
DQ = 0;                //將總線拉低，要在1us之后釋放總線
                        //單片機要在此下降沿后的15us內讀數據才會有效。
_nop_();             //至少維持了1us,表示讀時序開始
dat >>= 1;             //讓從總線上讀到的位數據，依次從高位移動到低位。
DQ = 1;                //釋放總線，此后DS18B20會控制總線,把數據傳輸到總線上
delay18b20(1);                //延時7us,此處參照推薦的讀時序圖，盡量把控制器采樣時間放到讀時序后的15us內的最后部分
if(DQ)                //控制器進行采樣
{
dat |= 0x80;          //若總線為1,即DQ為1,那就把dat的最高位置1;若為0,則不進行處理,保持為0
}
delay18b20(10);             //此延時不能少，確保讀時序的長度60us。
}
return (dat);
}

void Write_One_Byte(uchar dat)
{
uchar i = 0;
for(i=8;i>0;i--)
{
DQ = 0;                      //拉低總線
_nop_();                      //至少維持了1us,表示寫時序(包括寫0時序或寫1時序)開始
DQ = dat&0x01;                //從字節的最低位開始傳輸
                              //指令dat的最低位賦予給總線,必須在拉低總線后的15us內,
                              //因為15us后DS18B20會對總線采樣。
delay18b20(10);                   //必須讓寫時序持續至少60us
DQ = 1;                      //寫完后,必須釋放總線,
dat >>= 1;
delay18b20(1);
}
}

uint Get_Tmp()                //獲取溫度get the temperature
{
float tt;
uchar a,b;
Init_Ds18b20();             //初始化
Write_One_Byte(0xcc);       //忽略ROM指令
Write_One_Byte(0x44);       //溫度轉換指令
Init_Ds18b20();                //初始化
Write_One_Byte(0xcc);       //忽略ROM指令
Write_One_Byte(0xbe);       //讀暫存器指令
a = Read_One_Byte();          //讀取到的第一個字節為溫度LSB
b = Read_One_Byte();          //讀取到的第一個字節為溫度MSB
temp = b;                   //先把高八位有效數據賦于temp
temp <<= 8;                   //把以上8位數據從temp低八位移到高八位
temp = temp|a;             //兩字節合成一個整型變量
tt = temp*0.0625;             //得到真實十進制溫度值
                              //因為DS18B20可以精確到0.0625度
                              //所以讀回數據的最低位代表的是0.0625度
temp = tt*10+0.5;             //放大十倍
                              //這樣做的目的將小數點后第一位也轉換為可顯示數字
                              //同時進行一個四舍五入操作。
return temp;
}

/****************動態顯示溫度函數**************/

void Display(uint temp) //顯示程序
{
uchar A1,A2,A3;
A1 = temp/100; //百位
A2 = temp%100/10; //十位
A3 = temp%10; //個位

lcd_wcmd(0x98+4);
lcd_wdat(' ');
lcd_wdat(0x30+A1);
lcd_wdat(0x30+A2);
lcd_wdat('.');
lcd_wdat(0x30+A3);

}

/*********************************************************
*                                                       *
* 主函數                                              *
*                                                       *
*********************************************************/

void main()
{
lcd_init();
GUI_CLEAR(table);
Delay_S(); Delay_S();Delay_S();
Delay_S(); Delay_S();Delay_S();
TMOD=0X01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;ET0=1;TR0=1;
a=0;b=0;c=45;
delay(100);                //上電，等待穩定
lcd_init();                //初始化LCD
clr_screen(); //清屏
DISP_BP(); //畫表盤
//DrawHand(x0,y0,25,a,6,1); //顯示秒針
//DrawHand(x0,y0,20,b,6,1); //顯示分針
//DrawHand(x0,y0,15,c,6,1);    //顯示時針

lcd_wcmd(0x90+4);    //顯示初始時間
for(num=0;num<8;num++)
{
lcd_wdat(tab[num]);
}
lcd_wcmd(0x98+7);    //顯示溫度符號C
lcd_wdat('C');
lcd_wcmd(0x80+4);    //顯示”北京時間“
for(num=0;num<8;num++)
{
lcd_wdat(tabbjsj[num]);
}
lcd_wcmd(0x88+4);    //顯示"實時溫度"
for(num=0;num<8;num++)
{
lcd_wdat(tabsswd[num]);
}
c=5;b=0;a=0;
DrawHand(x0,y0,25,a,6,1); //顯示秒針
DrawHand(x0,y0,20,b,6,1); //顯示分針
DrawHand(x0,y0,15,c,6,1);    //顯示時針
while(1)
{
keyscan();
Display(Get_Tmp());//顯示溫度
if(count==20)
{
count=0;
DrawHand(x0,y0,25,a,6,0); // 消除秒針位置
DrawHand(x0,y0,20,b,6,1); //顯示新的分針位置
DrawHand(x0,y0,15,c,6,1);//顯示新的時針位置
a++;
if(a==60)
{
a=0;
DrawHand(x0,y0,20,b,6,0); //消除原來分針位置
DrawHand(x0,y0,15,c,6,1);//顯示新的時針位置
b++;
if(b==60 )
{
b=0;
DrawHand(x0,y0,15,c,6,0);//消除原來的時針位置
c++;
if(c==60)
{
c=0;
}
sfm(4,c/5);    DrawHand(x0,y0,15,c,6,1);//顯示新的時針位置
}
sfmfen(); DrawHand(x0,y0,20,b,6,1); //顯示新的分針位置
}
sfm(7,a); DrawHand(x0,y0,25,a,6,1);    //顯示新的秒針位置
}
}
}

void ser0()interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
count++;
}

ID:358930 · 發表于 2019-1-2 23:06

顯成什么樣，如屏上一個字沒有就是連接線接錯，程序這么大不是一般小白寫的，不會有大問題你再找找吧。我弄過12864和OLED12864多種摸擬鐘圓圓的都成功了。你找找

ID:94031 · 發表于 2019-1-3 08:14

查接線，調對比度電位器。

帳號		自動登錄	找回密碼
密碼			立即注冊

久久久久久久999_99精品久久精品一区二区爱城_成人欧美一区二区三区在线播放_国产精品日本一区二区不卡视频_国产午夜视频_欧美精品在线观看免费

st7920指針式時鐘程序，在12864上總顯示不了，求大神，下面是程序