📄 lcd_driver_user.c
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//========================================================================
//========================================================================
// 文件名: LCD_Driver_User.c
// 作 者: Xinqiang Zhang(email: xinqiang@Mzdesign.com.cn)
// 日 期: 2007/04/10
// 描 述: MzT24-1 TFT LCD模块底层接口程序集（C语言版本） for C8051F020
//
//
// 参 考: 请参考具体显示器的硬件描述说明书或者是DataSheet,并以此来编写底
// 层接口驱动程序，以及LCD的初始化代码
// 版 本:
// 2007/04/10 First version Mz Design
//========================================================================
#include "LCD_PortConfig.h"
#include "LCD_Config.h"
//========================================================================
// 函数: void LCD_DataWrite(unsigned char Data)
// 描述: 写一个字的显示数据至LCD中的显示缓冲RAM当中
// 参数: Data 写入的数据
// 返回: 无
// 备注: 无
// 版本:
// 2007/04/10 First version
//========================================================================
void LCD_DataWrite(unsigned int Data)
{
// *COM_W_ADDR = 0x00;
// *COM_W_ADDR = 0x22;
// *DAT_W_ADDR = (unsigned char)(Data>>8);
// *DAT_W_ADDR = (unsigned char)(Data&0x00ff);
LCD_RS = 0;
LCD_CS = 0;
LCD_WR = 0;
P1 = 0;
LCD_WR = 1;
LCD_WR = 0;
P1 = 0x22;
LCD_WR = 1;
LCD_RS = 1;
LCD_WR = 0;
P1 = Data>>8;
LCD_WR = 1;
LCD_WR = 0;
P1 = (unsigned char)(Data&0x00ff);
LCD_WR = 1;
LCD_CS = 1;
}
//========================================================================
// 函数: unsigned char LCD_DataRead(void)
// 描述: 从LCD中的显示缓冲RAM当中读一个字节的显示数据
// 参数: 无
// 返回: 读出的数据
// 备注: 无
// 版本:
// 2007/04/10 First version
//========================================================================
unsigned int LCD_DataRead(void)
{
unsigned int Read_Data;
// *COM_W_ADDR = 0x00;
// *COM_W_ADDR = 0x00;
// Read_Data = *COM_W_ADDR;//*DAT_R_ADDR;
// Read_Data = Read_Data<<8;
// Read_Data |= *COM_W_ADDR;//*DAT_R_ADDR;
LCD_CS = 0;
LCD_RS = 0;
LCD_RD = 0;
LCD_RD = 1;
LCD_RD = 0;
LCD_RD = 1;
P1 = 0xff;
LCD_RD = 0;
_nop_();
Read_Data = P1;
Read_Data = Read_Data<<8;
LCD_RD = 1;
P1 = 0xff;
LCD_RD = 0;
_nop_();
Read_Data |= P1;
LCD_RD = 1;
LCD_CS = 1;
return Read_Data;
}
//========================================================================
// 函数: void LCD_RegWrite(unsigned char Reg_Addr,unsigned int Data)
// 描述: 写一个字节的数据至LCD中的控制寄存器当中
// 参数: Reg_Addr 寄存器地址
// Data 写入的数据
// 返回: 无
// 备注:
// 版本:
// 2007/04/10 First version
//========================================================================
void LCD_RegWrite(unsigned char Reg_Addr,unsigned int Data)
{
// *COM_W_ADDR = 0x00;
// *COM_W_ADDR = Reg_Addr;
// *DAT_W_ADDR = Data>>8;
// *DAT_W_ADDR = (unsigned char)(Data&0x00ff);
LCD_RS = 0;
LCD_CS = 0;
LCD_WR = 0;
P1 = 0;
LCD_WR = 1;
LCD_WR = 0;
P1 = Reg_Addr;
LCD_WR = 1;
LCD_RS = 1;
LCD_WR = 0;
P1 = Data>>8;
LCD_WR = 1;
LCD_WR = 0;
P1 = (unsigned char)(Data&0x00ff);
LCD_WR = 1;
LCD_CS = 1;
}
//========================================================================
// 函数: void LCD_Reg22(void)
// 描述: MzT24-1 LCD模块当中，依据控制器SPFD5408的特性，将操作寄存器指向数
// 据寄存器R22h当中，以便于后面的数据连续写操作
// 参数:
// 返回: 无
// 备注:
// 版本:
// 2007/03/15 First version
//========================================================================
void LCD_Reg22(void)
{
LCD_RS = 0;
LCD_CS = 0;
LCD_WR = 0;
P1 = 0;
LCD_WR = 1;
LCD_WR = 0;
P1 = 0x22;
LCD_WR = 1;
LCD_CS = 1;
}
//========================================================================
// 函数: void Fill_Dot_LCD(unsigned int Color)
// 描述: 填充一个点到LCD显示缓冲RAM当中，而不管当前要填充的地址如何
// 参数: Color 要填充的点的颜色
// 返回: 无
// 备注:
// 版本:
// 2007/04/10 First version
//========================================================================
void Fill_Dot_LCD(unsigned int Color)
{
LCD_RS = 1;
LCD_CS = 0;
LCD_WR = 0;
P1 = Color>>8;
LCD_WR = 1;
LCD_WR = 0;
P1 = (unsigned char)(Color&0x00ff);
LCD_WR = 1;
LCD_CS = 1;
}
//========================================================================
// 函数: void Write_Dot_LCD(int x,int y,unsigned int i)
// 描述: 在LCD的真实坐标系上的X、Y点绘制填充色为i的点
// 参数: x X轴坐标
// y Y轴坐标
// i 要填充的点的颜色
// 返回: 无
// 备注:
// 版本:
// 2007/04/10 First version
//========================================================================
void Write_Dot_LCD(unsigned char x,unsigned int y,unsigned int i)
{
LCD_RegWrite(0x20,x);
LCD_RegWrite(0x21,y);
LCD_DataWrite(i);
}
//========================================================================
// 函数: void Clear_Dot_LCD(int x,int y)
// 描述: 清除在LCD的真实坐标系上的X、Y点（清除后该点为黑色）
// 参数: x X轴坐标
// y Y轴坐标
// 返回: 无
// 备注:
// 版本:
// 2006/10/15 First version
//========================================================================
void Clear_Dot_LCD(int x,int y)
{
x = y;//无意义，仅为了不提警告
}
//========================================================================
// 函数: unsigned int Get_Dot_LCD(int x,int y)
// 描述: 获取在LCD的真实坐标系上的X、Y点上的当前填充色数据
// 参数: x X轴坐标
// y Y轴坐标
// 返回: 该点的颜色
// 备注:
// 版本:
// 2007/04/10 First version
//========================================================================
unsigned int Get_Dot_LCD(int x,int y)
{
unsigned int Read_Data;
LCD_RegWrite(0x20,x);
LCD_RegWrite(0x21,y);
LCD_Reg22();
Read_Data = LCD_DataRead();
return Read_Data;
}
//========================================================================
// 函数: void Set_Dot_Addr_LCD(int x,int y)
// 描述: 设置在LCD的真实坐标系上的X、Y点对应的RAM地址
// 参数: x X轴坐标
// y Y轴坐标
// 返回: 无
// 备注: 仅设置当前操作地址，为后面的连续操作作好准备
// 版本:
// 2007/04/10 First version
//========================================================================
void Set_Dot_Addr_LCD(int x,int y)
{
LCD_RegWrite(0x20,x);
LCD_RegWrite(0x21,y);
LCD_Reg22();
}
//========================================================================
// 函数: void LCD_Fill(unsigned int Data)
// 描述: 会屏填充以Data的数据至各点中
// 参数: Data 要填充的颜色数据
// 返回: 无
// 备注: 仅在LCD初始化程序当中调用
// 版本:
// 2006/10/15 First version
//========================================================================
void LCD_Fill(unsigned int Data)
{
unsigned int data i;
unsigned char data j;
Set_Dot_Addr_LCD(0,0);
for(i=0;i<320;i++)
{
for(j=0;j<240;j++)
{
Fill_Dot_LCD(Data);
}
}
}
//========================================================================
// 函数: void LCD_Fill_s(unsigned int Number,unsigned int Color)
// 描述: 连续填充以Color色调的Number个点
// 参数: Number 填充的数量 Color 像素点的颜色
// 返回:
// 备注:
// 版本:
// 2006/10/15 First version
//========================================================================
void LCD_Fill_s(unsigned int Number,unsigned int Color)
{
LCD_Reg22();
while(Number!=0)
{
Fill_Dot_LCD(Color);
Number--;
}
}
//========================================================================
// 函数: void LCD_Init(void)
// 描述: LCD初始化程序，在里面会完成LCD初始所需要设置的许多寄存器，具体如果
// 用户想了解，建议查看DataSheet当中各个寄存器的意义
// 参数: 无
// 返回: 无
// 备注:
// 版本:
// 2007/04/10 First version
// 2007/06/27 V1.01
//========================================================================
//延时程序
void TimeDelay(int Time)
{
int i;
while(Time > 0)
{
for(i = 0;i < 1800;i++)
{
_nop_();
}
Time --;
}
}
void LCD_Init(void)
{
//LCD驱动所使用到的端口的初始化
LCD_Reset = 0; //复位操作
TimeDelay(400);
LCD_Reset = 1;
//LCD 寄存器初始化
TimeDelay(20);
LCD_RegWrite(0x0001,0x0100); //Driver Output Contral Register
LCD_RegWrite(0x0002,0x0700); //0x0701 //LCD Driving Waveform Contral
LCD_RegWrite(0x0003,0x1030); //Entry Mode设置
//指针从左至右自上而下的自动增模式
//Normal Mode(Window Mode disable)
//RGB格式
//16位数据2次传输的8总线设置
LCD_RegWrite(0x0004,0x0000); //Scalling Control register
LCD_RegWrite(0x0008,0x0207); //Display Control 2
LCD_RegWrite(0x0009,0x0000); //Display Control 3
LCD_RegWrite(0x000A,0x0000); //Frame Cycle Control
LCD_RegWrite(0x000C,0x0000); //External Display Interface Control 1
LCD_RegWrite(0x000D,0x0000); //Frame Maker Position
LCD_RegWrite(0x000F,0x0000); //External Display Interface Control 2
TimeDelay(100);
LCD_RegWrite(0x0007,0x0101); //Display Control
TimeDelay(100);
LCD_RegWrite(0x0010,0x16B0); //0x14B0 //Power Control 1
LCD_RegWrite(0x0011,0x0001); //0x0007 //Power Control 2
LCD_RegWrite(0x0017,0x0001); //0x0000 //Power Control 3
LCD_RegWrite(0x0012,0x0138); //0x013B //Power Control 4
LCD_RegWrite(0x0013,0x0800); //0x0800 //Power Control 5
LCD_RegWrite(0x0029,0x0009); //NVM read data 2
LCD_RegWrite(0x002a,0x0009); //NVM read data 3
LCD_RegWrite(0x00a4,0x0000);
LCD_RegWrite(0x0050,0x0000); //设置操作窗口的X轴开始列
LCD_RegWrite(0x0051,0x00EF); //设置操作窗口的X轴结束列
LCD_RegWrite(0x0052,0x0000); //设置操作窗口的Y轴开始行
LCD_RegWrite(0x0053,0x013F); //设置操作窗口的Y轴结束行
LCD_RegWrite(0x0060,0x2700); //Driver Output Control
//设置屏幕的点数以及扫描的起始行
LCD_RegWrite(0x0061,0x0001); //Driver Output Control
LCD_RegWrite(0x006A,0x0000); //Vertical Scroll Control
LCD_RegWrite(0x0080,0x0000); //Display Position – Partial Display 1
LCD_RegWrite(0x0081,0x0000); //RAM Address Start – Partial Display 1
LCD_RegWrite(0x0082,0x0000); //RAM address End - Partial Display 1
LCD_RegWrite(0x0083,0x0000); //Display Position – Partial Display 2
LCD_RegWrite(0x0084,0x0000); //RAM Address Start – Partial Display 2
LCD_RegWrite(0x0085,0x0000); //RAM address End – Partail Display2
LCD_RegWrite(0x0090,0x0013); //Frame Cycle Control
LCD_RegWrite(0x0092,0x0000); //Panel Interface Control 2
LCD_RegWrite(0x0093,0x0003); //Panel Interface control 3
LCD_RegWrite(0x0095,0x0110); //Frame Cycle Control
LCD_RegWrite(0x0007,0x0173);
LCD_Fill(LCD_INITIAL_COLOR);
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