求出现undefined identifier错误的原因分析

1楼-- · 2020-01-22 01:58

LQ12864.H头文件内调用这些变量但又没外部声明吧

2楼-- · 2020-01-22 06:31

这个是LQ12864.H
//#include "stc15f104e.h"
//#include "STC15.h"
#include "codetab.h"
sbit LCD_SCL=P3^0; //时钟 D0（SCLK）
sbit LCD_SDA=P3^1; //D1（MOSI）数据
sbit LCD_RST=P3^2; //复位
sbit LCD_DC =P3^3; //数据/命令控制
#define XLevelL 0x00
#define XLevelH 0x10
#define XLevel       ((XLevelH&0x0F)*16+XLevelL)
#define Max_Column 128
#define Max_Row 64
#define Brightness 0xCF
#define X_WIDTH 128
#define Y_WIDTH 64
/*********************LCD 延时1ms************************************/
void LCD_DLY_ms(unsigned int ms)
{
unsigned char a,b;
while(ms--)
{ for(b=222;b>0;b--)
      for(a=12;a>0;a--);
}
return;
}
/*********************LCD写数据************************************/
void LCD_WrDat(unsigned char dat)
{
unsigned char i;
LCD_DC=1;
for(i=0;i<8;i++) //发送一个八位数据
{
if((dat << i) & 0x80)
{LCD_SDA  = 1;}
else  LCD_SDA  = 0;
LCD_SCL = 0;
LCD_SCL = 1;
}
}
/*********************LCD写命令************************************/
void LCD_WrCmd(unsigned char cmd)
{
unsigned char i;
LCD_DC=0;
for(i=0;i<8;i++) //发送一个八位数据
{
if((cmd << i) & 0x80)
{LCD_SDA  = 1;}
else  LCD_SDA  = 0;
LCD_SCL = 0;
LCD_SCL = 1;
}
}
/*********************LCD 设置坐标************************************/
void LCD_Set_Pos(unsigned char x, unsigned char y)
{
LCD_WrCmd(0xb0+y);
LCD_WrCmd(((x&0xf0)>>4)|0x10);
LCD_WrCmd((x&0x0f)|0x01);
}
/*********************LCD全屏************************************/
void LCD_Fill(unsigned char bmp_dat)
{
unsigned char y,x;
for(y=0;y<8;y++)
{
LCD_WrCmd(0xb0+y);
LCD_WrCmd(0x01);
LCD_WrCmd(0x10);
for(x=0;x<X_WIDTH;x++)
LCD_WrDat(bmp_dat);
}
}
/*********************LCD复位************************************/
void LCD_CLS(void)
{
unsigned char y,x;
for(y=0;y<8;y++)
{
LCD_WrCmd(0xb0+y);
LCD_WrCmd(0x01);
LCD_WrCmd(0x10);
for(x=0;x<X_WIDTH;x++)
LCD_WrDat(0);
}
}
/*********************LCD初始化************************************/
void LCD_Init(void)
{
LCD_SCL=1;
LCD_RST=0;
LCD_DLY_ms(50);
LCD_RST=1;    //从上电到下面开始初始化要有足够的时间，即等待RC复位完毕
LCD_WrCmd(0xae);//--turn off oled panel
LCD_WrCmd(0x00);//---set low column address
LCD_WrCmd(0x10);//---set high column address
LCD_WrCmd(0x40);//--set start line address  Set Mapping RAM Display Start Line (0x00~0x3F)
LCD_WrCmd(0x81);//--set contrast control register
LCD_WrCmd(0xcf); // Set SEG Output Current Brightness
LCD_WrCmd(0xa1);//--Set SEG/Column Mapping    0xa0左右反置 0xa1正常
LCD_WrCmd(0xc8);//Set COM/Row Scan Direction 0xc0上下反置 0xc8正常
LCD_WrCmd(0xa6);//--set normal display
LCD_WrCmd(0xa8);//--set multiplex ratio(1 to 64)
LCD_WrCmd(0x3f);//--1/64 duty
LCD_WrCmd(0xd3);//-set display offset Shift Mapping RAM Counter (0x00~0x3F)
LCD_WrCmd(0x00);//-not offset
LCD_WrCmd(0xd5);//--set display clock divide ratio/oscillator frequency
LCD_WrCmd(0x80);//--set divide ratio, Set Clock as 100 Frames/Sec
LCD_WrCmd(0xd9);//--set pre-charge period
LCD_WrCmd(0xf1);//Set Pre-Charge as 15 Clocks & Discharge as 1 Clock
LCD_WrCmd(0xda);//--set com pins hardware configuration
LCD_WrCmd(0x12);
LCD_WrCmd(0xdb);//--set vcomh
LCD_WrCmd(0x40);//Set VCOM Deselect Level
LCD_WrCmd(0x20);//-Set Page Addressing Mode (0x00/0x01/0x02)
LCD_WrCmd(0x02);//
LCD_WrCmd(0x8d);//--set Charge Pump enable/disable
LCD_WrCmd(0x14);//--set(0x10) disable
LCD_WrCmd(0xa4);// Disable Entire Display On (0xa4/0xa5)
LCD_WrCmd(0xa6);// Disable Inverse Display On (0xa6/a7)
LCD_WrCmd(0xaf);//--turn on oled panel
LCD_Fill(0x00);  //初始清屏
LCD_Set_Pos(0,0);
}
/***************功能描述：显示6*8一组标准ASCII字符串显示的坐标（x,y），y为页范围0～7****************/
/*void LCD_P6x8Str(unsigned char x, y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='')
{
c =ch[j]-32;
if(x>126){x=0;y++;}
LCD_Set_Pos(x,y);
for(i=0;i<6;i++)
LCD_WrDat(F6x8[c][i]);
x+=6;
j++;
}
}
/*******************功能描述：显示8*16一组标准ASCII字符串    显示的坐标（x,y），y为页范围0～7****************/
void LCD_P8x16Str(unsigned char x, y,unsigned char ch[])
{
unsigned char c=0,i=0,j=0;
while (ch[j]!='')
{
c =ch[j]-32;
if(x>120){x=0;y++;}
LCD_Set_Pos(x,y);
for(i=0;i<8;i++)
LCD_WrDat(F8X16[c*16+i]);
LCD_Set_Pos(x,y+1);
for(i=0;i<8;i++)
LCD_WrDat(F8X16[c*16+i+8]);
x+=8;
j++;
}
}
/*****************功能描述：显示16*16点阵  显示的坐标（x,y），y为页范围0～7****************************/
void LCD_P16x16Ch(unsigned char x, y, N)
{
unsigned char wm=0;
unsigned int adder=32*N;  //
LCD_Set_Pos(x , y);
for(wm = 0;wm < 16;wm++)  //
{
LCD_WrDat(F16x16[adder]);
adder += 1;
}
LCD_Set_Pos(x,y + 1);
for(wm = 0;wm < 16;wm++) //
{
LCD_WrDat(F16x16[adder]);
adder += 1;
}
}

/*****************功能描述：显示16*32点阵  显示的坐标（x,y），y为页范围0～3****************************/
void LCD_P16x32Ch(unsigned char x, y, N)
{
unsigned char wm=0;
unsigned int adder=64*N;  //
LCD_Set_Pos(x , y);
for(wm = 0;wm <32;wm++)  //
{
LCD_WrDat(F16x32[adder]);
adder += 1;
}
LCD_Set_Pos(x,y + 1);
for(wm = 0;wm < 32;wm++) //
{
LCD_WrDat(F16x32[adder]);
adder += 1;
}

}
/***********功能描述：显示显示BMP图片128×64起始点坐标(x,y),x的范围0～127，y为页的范围0～7*****************/
/*void Draw_BMP(unsigned char x0, y0,x1, y1,unsigned char BMP[])
{
unsigned int j=0;
unsigned char x,y;

  if(y1%8==0) y=y1/8;
  else y=y1/8+1;
for(y=y0;y<y1;y++)
{
LCD_Set_Pos(x0,y);
for(x=x0;x<x1;x++)
      {
        LCD_WrDat(BMP[j++]);
      }
}
}