液晶驱动C语言.docx

液晶驱动C语言.docx

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液晶驱动C语言

#include"lcd.h"

#include"fonts.h"

staticvu16TextColor=0x0000,BackColor=0xFFFF;

/*******************************************************************************

*FunctionName:

Delay_LCD

*Description:

Insertsadelaytime.

*Input:

nCount:

specifiesthedelaytimelength.

*Output:

None

*Return:

None

*******************************************************************************/

voidDelay_LCD（u16n）

{

u16i,j;

for（i=0;i

for（j=0;j<3000;++j）;

}

/*******************************************************************************

*FunctionName:

STM3210B_LCD_Init

*Description:

InitializestheLCD.

*Input:

None

*Output:

None

*Return:

None

*******************************************************************************/

voidSTM3210B_LCD_Init（void）

{

vu16dummy=0;

//总线配置

LCD_CtrlLinesConfig（）;

LCD_WriteReg（0x0000,0x0001）;

Delay_LCD（1000）;

LCD_WriteReg（0x0001,0x0000）;

LCD_WriteReg（0x0010,0x1790）;

LCD_WriteReg（0x0060,0x2700）;

LCD_WriteReg（0x0061,0x0001）;

LCD_WriteReg（0x0046,0x0002）;

LCD_WriteReg（0x0013,0x8010）;

LCD_WriteReg（0x0012,0x80fe）;

LCD_WriteReg（0x0002,0x0500）;

LCD_WriteReg（0x0003,0x1030）;

LCD_WriteReg（0x0030,0x0303）;

LCD_WriteReg（0x0031,0x0303）;

LCD_WriteReg（0x0032,0x0303）;

LCD_WriteReg（0x0033,0x0300）;

LCD_WriteReg（0x0034,0x0003）;

LCD_WriteReg（0x0035,0x0303）;

LCD_WriteReg（0x0036,0x0014）;

LCD_WriteReg（0x0037,0x0303）;

LCD_WriteReg（0x0038,0x0303）;

LCD_WriteReg（0x0039,0x0303）;

LCD_WriteReg（0x003a,0x0300）;

LCD_WriteReg（0x003b,0x0003）;

LCD_WriteReg（0x003c,0x0303）;

LCD_WriteReg（0x003d,0x1400）;

LCD_WriteReg（0x0092,0x0200）;

LCD_WriteReg（0x0093,0x0303）;

LCD_WriteReg（0x0090,0x080d）;

LCD_WriteReg（0x0003,0x1018）;

LCD_WriteReg（0x0007,0x0173）;

dummy=LCD_ReadReg（0）;

}

/*******************************************************************************

*FunctionName:

LCD_SetTextColor

*Description:

SetstheTextcolor.

*Input:

-Color:

specifiestheTextcolorcodeRGB（5-6-5）.

*Output:

-TextColor:

TextcolorglobalvariableusedbyLCD_DrawChar

*andLCD_DrawPicturefunctions.

*Return:

None

*******************************************************************************/

voidLCD_SetTextColor（vu16Color）

{

TextColor=Color;

}

/*******************************************************************************

*FunctionName:

LCD_SetBackColor

*Description:

SetstheBackgroundcolor.

*Input:

-Color:

specifiestheBackgroundcolorcodeRGB（5-6-5）.

*Output:

-BackColor:

Backgroundcolorglobalvariableusedby

*LCD_DrawCharandLCD_DrawPicturefunctions.

*Return:

None

*******************************************************************************/

voidLCD_SetBackColor（vu16Color）

{

BackColor=Color;

}

/*******************************************************************************

*FunctionName:

LCD_ClearLine

*Description:

Clearstheselectedline.

*Input:

-Line:

theLinetobecleared.

*Thisparametercanbeoneofthefollowingvalues:

*-Linex:

wherexcanbe0..9

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_ClearLine（u8Line）

{

LCD_DisplayStringLine（Line,""）;

}

/*******************************************************************************

*FunctionName:

LCD_Clear

*Description:

ClearstheholeLCD.

*Input:

Color:

thecolorofthebackground.

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_Clear（u16Color）

{

u32index=0;

LCD_SetCursor（0x00,0x0000）;

LCD_WriteRAM_Prepare（）;/*PreparetowriteGRAM*/

for（index=0;index<76800;index++）

{

LCD_WriteRAM（Color）;

}

}

/*******************************************************************************

*FunctionName:

LCD_SetCursor

*Description:

Setsthecursorposition.

*Input:

-Xpos:

specifiestheXposition.

*-Ypos:

specifiestheYposition.

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_SetCursor（u8Xpos,u16Ypos）

{

LCD_WriteReg（R32,Xpos）;

LCD_WriteReg（R33,Ypos）;

}

/*******************************************************************************

*FunctionName:

LCD_DrawChar

*Description:

DrawsacharacteronLCD.

*Input:

-Xpos:

theLinewheretodisplaythecharactershape.

*Thisparametercanbeoneofthefollowingvalues:

*-Linex:

wherexcanbe0..9

*-Ypos:

startcolumnaddress.

*-c:

pointertothecharacterdata.

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_DrawChar（u8Xpos,u16Ypos,uc16*c）

{

u32index=0,i=0;

u8Xaddress=0;

Xaddress=Xpos;

LCD_SetCursor（Xaddress,Ypos）;

for（index=0;index<24;index++）

{

LCD_WriteRAM_Prepare（）;/*PreparetowriteGRAM*/

for（i=0;i<16;i++）

{

if（（c[index]&（1<

{

LCD_WriteRAM（BackColor）;

}

else

{

LCD_WriteRAM（TextColor）;

}

}

Xaddress++;

LCD_SetCursor（Xaddress,Ypos）;

}

}

/*******************************************************************************

*FunctionName:

LCD_DisplayChar

*Description:

Displaysonecharacter（16dotswidth,24dotsheight）.

*Input:

-Line:

theLinewheretodisplaythecharactershape.

*Thisparametercanbeoneofthefollowingvalues:

*-Linex:

wherexcanbe0..9

*-Column:

startcolumnaddress.

*-Ascii:

characterasciicode,mustbebetween0x20and0x7E.

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_DisplayChar（u8Line,u16Column,u8Ascii）

{

Ascii-=32;

LCD_DrawChar（Line,Column,&ASCII_Table[Ascii*24]）;

}

/*******************************************************************************

*FunctionName:

LCD_DisplayStringLine

*Description:

Displaysamaximumof20charontheLCD.

*Input:

-Line:

theLinewheretodisplaythecharactershape.

*Thisparametercanbeoneofthefollowingvalues:

*-Linex:

wherexcanbe0..9

*-*ptr:

pointertostringtodisplayonLCD.

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_DisplayStringLine（u8Line,u8*ptr）

{

u32i=0;

u16refcolumn=319;//319;

while（（*ptr!

=0）&&（i<20））//20

{

LCD_DisplayChar（Line,refcolumn,*ptr）;

refcolumn-=16;

ptr++;

i++;

}

}

/*******************************************************************************

*FunctionName:

LCD_SetDisplayWindow

*Description:

Setsadisplaywindow

*Input:

-Xpos:

specifiestheXbuttomleftposition.

*-Ypos:

specifiestheYbuttomleftposition.

*-Height:

displaywindowheight.

*-Width:

displaywindowwidth.

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_SetDisplayWindow（u8Xpos,u16Ypos,u8Height,u16Width）

{

if（Xpos>=Height）

{

LCD_WriteReg（R80,（Xpos-Height+1））;

}

else

{

LCD_WriteReg（R80,0）;

}

LCD_WriteReg（R81,Xpos）;

if（Ypos>=Width）

{

LCD_WriteReg（R82,（Ypos-Width+1））;

}

else

{

LCD_WriteReg（R82,0）;

}

/*VerticalGRAMEndAddress*/

LCD_WriteReg（R83,Ypos）;

LCD_SetCursor（Xpos,Ypos）;

}

/*******************************************************************************

*FunctionName:

LCD_WindowModeDisable

*Description:

DisablesLCDWindowmode.

*Input:

None

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_WindowModeDisable（void）

{

LCD_SetDisplayWindow（239,0x13F,240,320）;

LCD_WriteReg（R3,0x1018）;

}

/*******************************************************************************

*FunctionName:

LCD_DrawLine

*Description:

Displaysaline.

*Input:

-Xpos:

specifiestheXposition.

*-Ypos:

specifiestheYposition.

*-Length:

linelength.

*-Direction:

linedirection.

*Thisparametercanbeoneofthefollowingvalues:

Vertical

*orHorizontal.

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_DrawLine（u8Xpos,u16Ypos,u16Length,u8Direction）

{

u32i=0;

LCD_SetCursor（Xpos,Ypos）;

if（Direction==Horizontal）

{

LCD_WriteRAM_Prepare（）;/*PreparetowriteGRAM*/

for（i=0;i

{

LCD_WriteRAM（TextColor）;

}

}

else

{

for（i=0;i

{

LCD_WriteRAM_Prepare（）;/*PreparetowriteGRAM*/

LCD_WriteRAM（TextColor）;

Xpos++;

LCD_SetCursor（Xpos,Ypos）;

}

}

}

/*******************************************************************************

*FunctionName:

LCD_DrawRect

*Description:

Displaysarectangle.

*Input:

-Xpos:

specifiestheXposition.

*-Ypos:

specifiestheYposition.

*-Height:

displayrectangleheight.

*-Width:

displayrectanglewidth.

*Output:

None

*Return:

None

*******************************************************************************/

voidLCD_DrawRect（u8Xpos,u16Ypos,u8Height,u16Width）

{

LCD_DrawLine（Xpos,Ypos,Width,Horizontal）;

LCD_DrawLine（（Xpos+Height）,Ypos,Width,Horizontal）;

LCD_DrawLine（Xpos,Ypos,Height,Vertical）;

LCD_DrawLine（Xpos,（Ypos-Width+1）,Height,Vertical）;

}

/*******************************************************************************

*FunctionName:

LCD_DrawCircle

*Description:

Displaysacircle.

*Input:

-Xpos:

specifiestheXposition.

*-Ypos:

specifiestheYposition.

*-Height:

displayrectangleheight.

*-Width:

displayrectanglewidth.

*Output:

None

*Return:

None

***************************************************************