📄 lcd.c
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/*
================================================================================
Copytight : Yihetech Co,.Ltd, All rightd reserved. 版权归属亿和电子工作室
Store : http://shop57165217.taobao.com/
File Name : lcd.c
Description : LCD module operations
Date : 2009-7-19 21:17:45
Version : V1.0
Author : LiYong(李勇), yihe_liyong@126.com
Target device : C8051F340
Compiler : KeilC51 V8.16
Note : 转载时务必保留此信息，否则无权以任何形式传播本文件
================================================================================
*/
#define _LCD_C_
#include "LCD.H"
#define LCDCOM 0
#define LCDDAT 1
sbit LED_RD = P2^5;
sbit LED_CS = P2^7;
sbit LED_WR = P2^4;
sbit LED_A0 = P2^3;
sbit BLACKLIGHT = P2^0;
void _delay_ms(unsigned char del)
{
unsigned int i,j;
for(i=0; i<del; i++)
for(j=0; j<182; j++)
;
}
/*
================================================================================
* Name : LCD_Init( )
* Description : Initialize the LCD module
* Input : None
* Output : None
* Note : None
================================================================================
*/
void LCDWR( INT8U cmd_dt, INT8U value )
{
LED_RD = 1;
LED_CS = 1;
LED_WR = 1;
if(cmd_dt)
{
LED_A0 = 1;
}
else
{
LED_A0 = 0;
}
P0 = value;
LED_CS = 0;
LED_WR = 0;
LED_WR = 1;
LED_CS = 1;
}
/*
================================================================================
* Name : LCD_Init( )
* Description : Initialize the LCD module
* Input : None
* Output : None
* Note : None
================================================================================
*/
void LCD_Init( void )
{
LCDWR( LCDCOM, 0x01);//software reset
_delay_ms(50); //delay 150ms
LCDWR( LCDCOM,0xD7); // Auto load set
LCDWR ( LCDDAT,0x9f);//auto load disable//0x9f
LCDWR( LCDCOM,0xe0); //EE read/write mode
LCDWR ( LCDDAT,0x00); //set read mode
_delay_ms(50); //delay 150 ms
LCDWR( LCDCOM,0xe3); //read active
_delay_ms(50); //delay 150 ms
LCDWR( LCDCOM,0xe1); //cancel control close read mode
/////sleep out ///////
LCDWR( LCDCOM,0x28); //display off
LCDWR( LCDCOM,0x11); //sleep out
_delay_ms(20);
//////////////////////////////////////////////////////
/////VOP set///////////
LCDWR( LCDCOM,0xc0); //vo voltage set
LCDWR ( LCDDAT,0xff);///////////f5///// 08//00
LCDWR ( LCDDAT,0x00);//00//01
LCDWR( LCDCOM,0x25); //write contrast for mobile
LCDWR ( LCDDAT,0x3f);
//-----------OTPB SET----------------------//
LCDWR( LCDCOM,0xc3);// bias set
LCDWR ( LCDDAT,0x00); //1/12
LCDWR( LCDCOM,0xc4); //booster set
LCDWR ( LCDDAT,0x06);// //06 7倍压
LCDWR( LCDCOM,0xc5); //booster efficiency set
LCDWR ( LCDDAT,0x01); //11
LCDWR( LCDCOM,0xcb); //vg booster set
LCDWR ( LCDDAT,0x01);
LCDWR( LCDCOM,0xd0); //set vg source
LCDWR ( LCDDAT,0x1d);
//------------MTP SET-------------------------//
LCDWR( LCDCOM,0xb5); //n-line set
LCDWR ( LCDDAT,0x89);//00
LCDWR( LCDCOM,0xbd); //x-talk compensation
LCDWR ( LCDDAT,0x02); //step2=level3
LCDWR( LCDCOM,0xf0);
LCDWR ( LCDDAT,0x06);
LCDWR ( LCDDAT,0x0b);
LCDWR ( LCDDAT,0x0d);
LCDWR ( LCDDAT,0x15);
LCDWR( LCDCOM,0x36); //MEMORY ACCESS CONTROL
LCDWR ( LCDDAT,0x88);//c8
LCDWR( LCDCOM,0x3a); //interface pixer format
LCDWR ( LCDDAT,0x05); //16bits pixel
LCDWR( LCDCOM,0xb0); //duty setting
LCDWR ( LCDDAT,0x7f); //duty=128
//=====================new
LCDWR( LCDCOM,0x2a); //col
LCDWR ( LCDDAT,0x00); //0~127
LCDWR ( LCDDAT,0x7f);
LCDWR( LCDCOM,0x2b); //page
LCDWR ( LCDDAT,0x00); //0~127
LCDWR ( LCDDAT,0x7f);
//-------------------gamma table set------------------//
LCDWR( LCDCOM, 0xF9); //Gamma
LCDWR ( LCDDAT,0x00); //
LCDWR ( LCDDAT,0x02); //
LCDWR ( LCDDAT,0x04); //
LCDWR ( LCDDAT,0x06); //
LCDWR ( LCDDAT,0x08); //
LCDWR ( LCDDAT,0x0A); //
LCDWR ( LCDDAT,0x0C); //
LCDWR ( LCDDAT,0x0E); //
LCDWR ( LCDDAT,0x10); //
LCDWR ( LCDDAT,0x12); //
LCDWR ( LCDDAT,0x14); //
LCDWR ( LCDDAT,0x16); //
LCDWR ( LCDDAT,0x18); //
LCDWR ( LCDDAT,0x1A); //
LCDWR ( LCDDAT,0x1C); //
LCDWR ( LCDDAT,0x1E); //
LCDWR( LCDCOM,0x29);
LCDWR( LCDCOM,0x2c);
}
/*
========================================================================================================
Name: LCD_SetArea
Function: Set the area of screen for displaying
Input:
1.xs : Start position X
2.xe : End position X
3.ys : Start position Y
4.ye : End position Y
Output: None
Author: LiYong
Date : 2008.08.09
========================================================================================================
*/
void LCDSetArea( INT8U x1, INT8U y1, INT8U x2, INT8U y2 )
{
LCDWR ( LCDCOM, SET_X_ADDR);
LCDWR ( LCDDAT, x1 + 0);
LCDWR ( LCDDAT, x2 + 0);
LCDWR ( LCDCOM, SET_Y_ADDR);
LCDWR ( LCDDAT, y1 + 0);
LCDWR ( LCDDAT, y2 + 0);
LCDWR ( LCDCOM, MEM_WRITE);
}
/*
========================================================================================================
Name: LCDDrawDollop
Function: Draw a dollop at a special area
Input: 1. *dollop : The pointer of a DOLLOP struct
Output: None
Note: The value of the input structrue must be correct, This function does not check the parameters.
Author: LiYong
Date : 2008.08.09
========================================================================================================
*/
void LCDDrawDollop( DOLLOP* dollop )
{
INT8U x,y;
LCDSetArea(dollop->xs, dollop->ys, dollop->xe, dollop->ye); //Set a area at the screen
for( x = 0; x < dollop->xe - dollop->xs + 1; x ++ ) //Display rows
{
for( y = 0; y < dollop->ye - dollop->ys + 1; y ++ ) //Display columns
{
LCDWR( LCDDAT, dollop->Color>>8 );
LCDWR( LCDDAT, dollop->Color );
}
}
}
/*
========================================================================================================
Name: LCDDrawPoint( );
Function: Draw a point
Input: -pPoint, A structure pointer
Output: None
========================================================================================================
*/
void LCDDrawPoint( POINT* pPoint )
{
LCDSetArea( pPoint->x, pPoint->y, pPoint->x, pPoint->y );
LCDWR ( LCDDAT, ( pPoint->Color >> 8 ) & 0xff );
LCDWR ( LCDDAT, pPoint->Color & 0xff );
}
/*
========================================================================================================
Name: LCDDrawHRLine( );
Function: Draw a line
Input: -pLine, A structure pointer to a line
Output: None
========================================================================================================
*/
void LCDDrawHRLine( LINE* pLine )
{
INT8U x0, x1, y0, y1;
if( pLine->xs != pLine->xe && pLine->ys != pLine->ye ) return;
if( pLine->ys > pLine->ye )
{
y0 = pLine->ye;
y1 = pLine->ys;
}
else
{
y0 = pLine->ys;
y1 = pLine->ye;
}
if( pLine->xs > pLine->xe )
{
x0 = pLine->xe;
x1 = pLine->xs;
}
else
{
x0 = pLine->xs;
x1 = pLine->xe;
}
LCDSetArea( x0, y0, x1, y1 );
x0 = x1 - x0;
if( x0 == 0 ) x0 = y1 - y0;
for( y0 = 0; y0 < x0; y0 ++ )
{
LCDWR( LCDDAT, pLine->Color >> 8 );
LCDWR( LCDDAT, pLine->Color );
}
}
/*
========================================================================================================
Name: PrintBitBlock
Function: Print a special block in the screen.
Input: pBitBlock: This is a pointer, It points to a block whitch contains informations of the block,
eg. height, width, and so on.
Output: None
Note: None
Author: LiYong
Date : 2008.08.09
========================================================================================================
*/
void PrintBitBlock( BitBlock *pBitBlock )
{
INT8U Row, Column;
INT32U BytesAbs;
INT8U RowBytes;
LCDSetArea( pBitBlock->xs, pBitBlock->ys,
pBitBlock->xs + pBitBlock->Width - 1, pBitBlock->ys + pBitBlock->Height - 1 );
RowBytes = pBitBlock->Width >> 3;
if( pBitBlock->Width & 0x07 )
{
RowBytes ++;
}
for( Row = 0; Row < pBitBlock->Height; Row ++ )
{
for( Column = 0; Column < pBitBlock->Width; Column ++ )
{
BytesAbs = Row * RowBytes + ( Column >> 3 ) ;
if( *( pBitBlock->pData + BytesAbs ) & ( 1<<( Column & 0x07 )) )
{
LCDWR( LCDDAT, pBitBlock->Color >> 8 );
LCDWR( LCDDAT, pBitBlock->Color );
}
else
{
LCDWR( LCDDAT, pBitBlock->BackColor >> 8 );
LCDWR( LCDDAT, pBitBlock->BackColor );
}
}
}
}
/*
========================================================================================================
Name: GUI_Image( )
Function: Print a image
Input: point to a struct which contains the informations of the image
Output: None
Note: None
Author: LiYong
Date : 2008.08.09
========================================================================================================
*/
void GUI_Image( IMAGE *pImage )
{
INT8U x, y;
INT16U datacount = 0;
LCDSetArea( pImage->xs, pImage->ys, pImage->xs + pImage->length - 1, pImage->ys + pImage->height - 1 );
for( x = 0; x < pImage->length; x ++ )
{
for( y = 0; y < pImage->height; y ++ )
{
LCDWR( LCDDAT, *( pImage->pData + datacount++ ) );
LCDWR( LCDDAT, *( pImage->pData + datacount++ ) );
}
}
}
/*
================================================================================
-----------------------------------End of file----------------------------------
================================================================================
*/
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