《蓝桥杯备赛》CT117E嵌入式竞赛板LCD驱动库的使用（带完整源码）
Posted 嵌入式历练者
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了《蓝桥杯备赛》CT117E嵌入式竞赛板LCD驱动库的使用（带完整源码）相关的知识，希望对你有一定的参考价值。
声明：开发板为蓝桥杯CT117E Rev 1.1,资源只用于学习用途
1.蓝桥杯LCD驱动库（官方提供）
lcd.c
/*
程序说明: CT117E嵌入式竞赛板LCD驱动程序
软件环境: Keil uVision 4.10
硬件环境: CT117E嵌入式竞赛板
日 期: 2011-8-9
*/
#include "lcd.h"
#include "fonts.h"
static vu16 TextColor = 0x0000, BackColor = 0xFFFF;
vu16 dummy;
/*******************************************************************************
* Function Name : Delay_LCD
* Description : Inserts a delay time.
* Input : nCount: specifies the delay time length.
* Output : None
* Return : None
*******************************************************************************/
void Delay_LCD(u16 n)
u16 i,j;
for (i = 0;i<n;++i)
for(j=0;j<3000;++j);
/*
uC8230型液晶控制器寄存器配置
*/
void REG_8230_Init(void)
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);
void REG_932X_Init(void)
LCD_WriteReg(R227, 0x3008); // Set internal timing
LCD_WriteReg(R231, 0x0012); // Set internal timing
LCD_WriteReg(R239, 0x1231); // Set internal timing
LCD_WriteReg(R1 , 0x0000); // set SS and SM bit //0x0100
LCD_WriteReg(R2 , 0x0700); // set 1 line inversion
LCD_WriteReg(R3 , 0x1030); // set GRAM write direction and BGR=1.
LCD_WriteReg(R4 , 0x0000); // Resize register
LCD_WriteReg(R8 , 0x0207); // set the back porch and front porch
LCD_WriteReg(R9 , 0x0000); // set non-display area refresh cycle ISC[3:0]
LCD_WriteReg(R10 , 0x0000); // FMARK function
LCD_WriteReg(R12 , 0x0000); // RGB interface setting
LCD_WriteReg(R13 , 0x0000); // Frame marker Position
LCD_WriteReg(R15 , 0x0000); // RGB interface polarity
/**************Power On sequence ****************/
LCD_WriteReg(R16 , 0x0000); // SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_WriteReg(R17 , 0x0007); // DC1[2:0], DC0[2:0], VC[2:0]
LCD_WriteReg(R18 , 0x0000); // VREG1OUT voltage
LCD_WriteReg(R19 , 0x0000); // VDV[4:0] for VCOM amplitude
Delay_LCD(1000); // Delay 200 MS , Dis-charge capacitor power voltage
LCD_WriteReg(R16 , 0x1690); // SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_WriteReg(R17 , 0x0227); // R11H=0x0221 at VCI=3.3V, DC1[2:0], DC0[2:0], VC[2:0]
Delay_LCD(50); // Delay XXms
LCD_WriteReg(R18 , 0x001D); // External reference voltage= Vci;
Delay_LCD(50); // Delay XXms
LCD_WriteReg(R19 , 0x0800); // R13H=1D00 when R12H=009D;VDV[4:0] for VCOM amplitude
LCD_WriteReg(R41 , 0x0014); // R29H=0013 when R12H=009D;VCM[5:0] for VCOMH
LCD_WriteReg(R43 , 0x000B); // Frame Rate = 96Hz
Delay_LCD(50); // Delay XXms
LCD_WriteReg(R32 , 0x0000); // GRAM horizontal Address
LCD_WriteReg(R33 , 0x0000); // GRAM Vertical Address
/* ----------- Adjust the Gamma Curve ---------- */
LCD_WriteReg(R48 , 0x0007);
LCD_WriteReg(R49 , 0x0707);
LCD_WriteReg(R50 , 0x0006);
LCD_WriteReg(R53 , 0x0704);
LCD_WriteReg(R54 , 0x1F04);
LCD_WriteReg(R55 , 0x0004);
LCD_WriteReg(R56 , 0x0000);
LCD_WriteReg(R57 , 0x0706);
LCD_WriteReg(R60 , 0x0701);
LCD_WriteReg(R61 , 0x000F);
/* ------------------ Set GRAM area --------------- */
LCD_WriteReg(R80 , 0x0000); // Horizontal GRAM Start Address
LCD_WriteReg(R81 , 0x00EF); // Horizontal GRAM End Address
LCD_WriteReg(R82 , 0x0000); // Vertical GRAM Start Address
LCD_WriteReg(R83 , 0x013F); // Vertical GRAM Start Address
LCD_WriteReg(R96 , 0x2700); // Gate Scan Line 0xA700
LCD_WriteReg(R97 , 0x0001); // NDL,VLE, REV
LCD_WriteReg(R106, 0x0000); // set scrolling line
/* -------------- Partial Display Control --------- */
LCD_WriteReg(R128, 0x0000);
LCD_WriteReg(R129, 0x0000);
LCD_WriteReg(R130, 0x0000);
LCD_WriteReg(R131, 0x0000);
LCD_WriteReg(R132, 0x0000);
LCD_WriteReg(R133, 0x0000);
/* -------------- Panel Control ------------------- */
LCD_WriteReg(R144, 0x0010);
LCD_WriteReg(R146, 0x0000);
LCD_WriteReg(R147, 0x0003);
LCD_WriteReg(R149, 0x0110);
LCD_WriteReg(R151, 0x0000);
LCD_WriteReg(R152, 0x0000);
/* Set GRAM write direction and BGR = 1 */
/* I/D=01 (Horizontal : increment, Vertical : decrement) */
/* AM=1 (address is updated in vertical writing direction) */
LCD_WriteReg(R3 , 0x01018); //0x1018
LCD_WriteReg(R7 , 0x0173); // 262K color and display ON
/*******************************************************************************
* Function Name : STM3210B_LCD_Init
* Description : Initializes the LCD.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void STM3210B_LCD_Init(void)
LCD_CtrlLinesConfig();
dummy = LCD_ReadReg(0);
if(dummy == 0x8230)
REG_8230_Init();
else
REG_932X_Init();
dummy = LCD_ReadReg(0);
/*******************************************************************************
* Function Name : LCD_SetTextColor
* Description : Sets the Text color.
* Input : - Color: specifies the Text color code RGB(5-6-5).
* Output : - TextColor: Text color global variable used by LCD_DrawChar
* and LCD_DrawPicture functions.
* Return : None
*******************************************************************************/
void LCD_SetTextColor(vu16 Color)
TextColor = Color;
/*******************************************************************************
* Function Name : LCD_SetBackColor
* Description : Sets the Background color.
* Input : - Color: specifies the Background color code RGB(5-6-5).
* Output : - BackColor: Background color global variable used by
* LCD_DrawChar and LCD_DrawPicture functions.
* Return : None
*******************************************************************************/
void LCD_SetBackColor(vu16 Color)
BackColor = Color;
/*******************************************************************************
* Function Name : LCD_ClearLine
* Description : Clears the selected line.
* Input : - Line: the Line to be cleared.
* This parameter can be one of the following values:
* - Linex: where x can be 0..9
* Output : None
* Return : None
*******************************************************************************/
void LCD_ClearLine(u8 Line)
LCD_DisplayStringLine(Line, " ");
/*******************************************************************************
* Function Name : LCD_Clear
* Description : Clears the hole LCD.
* Input : Color: the color of the background.
* Output : None
* Return : None
*******************************************************************************/
void LCD_Clear(u16 Color)
u32 index = 0;
LCD_SetCursor(0x00, 0x0000);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
for(index = 0; index < 76800; index++)
LCD_WriteRAM(Color);
/*******************************************************************************
* Function Name : LCD_SetCursor
* Description : Sets the cursor position.
* Input : - Xpos: specifies the X position.
* - Ypos: specifies the Y position.
* Output : None
* Return : None
*******************************************************************************/
void LCD_SetCursor(u8 Xpos, u16 Ypos)
LCD_WriteReg(R32, Xpos);
LCD_WriteReg(R33, Ypos);
/*******************************************************************************
* Function Name : LCD_DrawChar
* Description : Draws a character on LCD.
* Input : - Xpos: the Line where to display the character shape.
* This parameter can be one of the following values:
* - Linex: where x can be 0..9
* - Ypos: start column address.
* - c: pointer to the character data.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawChar(u8 Xpos, u16 Ypos, uc16 *c)
u32 index = 0, i = 0;
u8 Xaddress = 0;
Xaddress = Xpos;
LCD_SetCursor(Xaddress, Ypos);
for(index = 0; index < 24; index++)
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
for(i = 0; i < 16; i++)
if((c[index] & (1 << i)) == 0x00)
LCD_WriteRAM(BackColor);
else
LCD_WriteRAM(TextColor);
Xaddress++;
LCD_SetCursor(Xaddress, Ypos);
/*******************************************************************************
* Function Name : LCD_DisplayChar
* Description : Displays one character (16dots width, 24dots height).
* Input : - Line: the Line where to display the character shape .
* This parameter can be one of the following values:
* - Linex: where x can be 0..9
* - Column: start column address.
* - Ascii: character ascii code, must be between 0x20 and 0x7E.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DisplayChar(u8 Line, u16 Column, u8 Ascii)
Ascii -= 32;
LCD_DrawChar(Line, Column, &ASCII_Table[Ascii * 24]);
/*******************************************************************************
* Function Name : LCD_DisplayStringLine
* Description : Displays a maximum of 20 char on the LCD.
* Input : - Line: the Line where to display the character shape .
* This parameter can be one of the following values:
* - Linex: where x can be 0..9
* - *ptr: pointer to string to display on LCD.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DisplayStringLine(u8 Line, u8 *ptr)
u32 i = 0;
u16 refcolumn = 319;//319;
while ((*ptr != 0) && (i < 20)) // 20
LCD_DisplayChar(Line, refcolumn, *ptr);
refcolumn -= 16;
ptr++;
i++;
/*******************************************************************************
* Function Name : LCD_SetDisplayWindow
* Description : Sets a display window
* Input : - Xpos: specifies the X buttom left position.
* - Ypos: specifies the Y buttom left position.
* - Height: display window height.
* - Width: display window width.
* Output : None
* Return : None
*******************************************************************************/
void LCD_SetDisplayWindow(u8 Xpos, u16 Ypos, u8 Height, u16 Width)
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);
/* Vertical GRAM End Address */
LCD_WriteReg(R83, Ypos);
LCD_SetCursor(Xpos, Ypos);
/*******************************************************************************
* Function Name : LCD_WindowModeDisable
* Description : Disables LCD Window mode.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void LCD_WindowModeDisable(void)
LCD_SetDisplayWindow(239, 0x13F, 240, 320);
LCD_WriteReg(R3, 0x1018);
/*******************************************************************************
* Function Name : LCD_DrawLine
* Description : Displays a line.
* Input : - Xpos: specifies the X position.
* - Ypos: specifies the Y position.
* - Length: line length.
* - Direction: line direction.
* This parameter can be one of the following values: Vertical
* or Horizontal.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawLine(u8 Xpos, u16 Ypos, u16 Length, u8 Direction)
u32 i = 0;
LCD_SetCursor(Xpos, Ypos);
if(Direction == Horizontal)
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
for(i = 0; i < Length; i++)
LCD_WriteRAM(TextColor);
else
for(i = 0; i < Length; i++)
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
Xpos++;
LCD_SetCursor(Xpos, Ypos);
/*******************************************************************************
* Function Name : LCD_DrawRect
* Description : Displays a rectangle.
* Input : - Xpos: specifies the X position.
* - Ypos: specifies the Y position.
* - Height: display rectangle height.
* - Width: display rectangle width.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawRect(u8 Xpos, u16 Ypos, u8 Height, u16 Width)
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);
/*******************************************************************************
* Function Name : LCD_DrawCircle
* Description : Displays a circle.
* Input : - Xpos: specifies the X position.
* - Ypos: specifies the Y position.
* - Height: display rectangle height.
* - Width: display rectangle width.
* Output : None
* Return : None
*******************************************************************************/
void LCD_DrawCircle(u8 Xpos, u16 Ypos, u16 Radius)
s32 D;
u32 CurX;
u32 CurY;
D = 3 - (Radius << 1);
CurX = 0;
CurY = Radius;
while (CurX <= CurY)
LCD_SetCursor(Xpos + CurX, Ypos + CurY);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos + CurX, Ypos - CurY);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos - CurX, Ypos + CurY);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos - CurX, Ypos - CurY);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos + CurY, Ypos + CurX);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos + CurY, Ypos - CurX);
LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */
LCD_WriteRAM(TextColor);
LCD_SetCursor(Xpos - CurY,<以上是关于《蓝桥杯备赛》CT117E嵌入式竞赛板LCD驱动库的使用（带完整源码）的主要内容，如果未能解决你的问题，请参考以下文章