液晶驱动C语言.

1、#include lcd.h#include fonts.hstatic vu16 TextColor = 0 x0000, BackColor = 0 xFFFF;* Function Name* Description* Input* Output* Return: Delay_LCD: Inserts a delay time.: nCount: specifies the delay time length. : None: None*/void Delay_LCD(u16 n) u16 i,j; for (i = 0;in;+i) for(j=0;j3000;+j);/* Funct

2、ion Name* Description* Input* Output* Return: STM3210B_LCD_Init : Initializes the LCD.: None: None: None*/void STM3210B_LCD_Init(void) vu16 dummy = 0;/总线配置 LCD_CtrlLinesConfig();LCD_WriteReg(0 x0000,0 x0001);Delay_LCD(1000);LCD_WriteReg(0 x0001,0 x0000);LCD_WriteReg(0 x0010,0 x1790);LCD_WriteReg(0 x

3、0060,0 x2700);LCD_WriteReg(0 x0061,0 x0001);LCD_WriteReg(0 x0046,0 x0002);LCD_WriteReg(0 x0013,0 x8010);LCD_WriteReg(0 x0012,0 x80fe);LCD_WriteReg(0 x0002,0 x0500);LCD_WriteReg(0 x0003,0 x1030);LCD_WriteReg(0 x0030,0 x0303);LCD_WriteReg(0 x0031,0 x0303);LCD_WriteReg(0 x0032,0 x0303);LCD_WriteReg(0 x

4、0033,0 x0300);LCD_WriteReg(0 x0034,0 x0003);LCD_WriteReg(0 x0035,0 x0303);LCD_WriteReg(0 x0036,0 x0014);LCD_WriteReg(0 x0037,0 x0303);LCD_WriteReg(0 x0038,0 x0303);LCD_WriteReg(0 x0039,0 x0303);LCD_WriteReg(0 x003a,0 x0300);LCD_WriteReg(0 x003b,0 x0003);LCD_WriteReg(0 x003c,0 x0303);LCD_WriteReg(0 x

5、003d,0 x1400);LCD_WriteReg(0 x0092,0 x0200);LCD_WriteReg(0 x0093,0 x0303);LCD_WriteReg(0 x0090,0 x080d);LCD_WriteReg(0 x0003,0 x1018);LCD_WriteReg(0 x0007,0 x0173);dummy = LCD_ReadReg(0);/* Function Name : LCD_SetTextColor* Description : Sets the Text color.* Input: - Color: specifies the Text color

6、 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.* Description* Input* Output* Return

7、* Input* Output*: - Color: specifies the Background color code RGB(5-6-5). : - 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

8、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_SetCursorDescriptionInput: Sets the cursor position.: - X

9、pos: specifies the X position.* Output* Return- Ypos: specifies the Y position. : None: None*/void LCD_SetCursor(u8 Xpos, u16 Ypos)LCD_WriteReg(R32, Xpos);LCD_WriteReg(R33, Ypos);* Function Name* Description* Input: LCD_DrawChar: Draws a character on LCD.: - Xpos: the Line where to display the chara

10、cter 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* Return: None: None*/void LCD_DrawChar(u8 Xpos, u16 Ypos, uc16 *c)u32 index = 0, i = 0; u8 Xaddress = 0;Xaddress = Xpos;LCD_SetCursor(Xaddr

11、ess, Ypos);for(index = 0; index 24; index+)LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */ for(i = 0; i 16; i+) if(cindex & (1 i) = 0 x00) LCD_WriteRAM(BackColor); elseLCD_WriteRAM(TextColor);Xaddress+;LCD_SetCursor(Xaddress, Ypos);/* Function Name : LCD_DisplayChar* Description : Displays one c

12、haracter (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 0 x20 and 0 x7E.* Output: None* Return

13、: None*/void LCD_DisplayChar(u8 Line, u16 Column, u8 Ascii)Ascii -= 32;LCD_DrawChar(Line, Column, &ASCII_TableAscii * 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 ca

14、n 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 = Height)LCD_WriteReg(R80, (Xpos - Height + 1);elseLCD_WriteRe

15、g(R80, 0);LCD_WriteReg(R81, Xpos);if(Ypos = Width)LCD_WriteReg(R82, (Ypos - Width + 1);elseLCD_WriteReg(R82, 0);/* Vertical GRAM End Address */ LCD_WriteReg(R83, Ypos); LCD_SetCursor(Xpos, Ypos);* Function Name* Description* Input*: LCD_SetDisplayWindow: Sets a display window: - Xpos: specifies the

16、X buttom left position.- Ypos: specifies the Y buttom left position.*- Height: display window height.*Input* Output: None: NoneDescription: NoneFunction Name : LCD_WindowModeDisable: Disables LCD Window mode.* Return*/void LCD_WindowModeDisable(void)LCD_SetDisplayWindow(239, 0 x13F, 240, 320);LCD_Wr

17、iteReg(R3, 0 x1018);/* 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 : Non

18、e * 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()

19、; /* Prepare to write GRAM */ LCD_WriteRAM(TextColor);Xpos+;LCD_SetCursor(Xpos, Ypos);/* Function Name* Description* Input*: LCD_DrawRect: Displays a rectangle.: - Xpos: specifies the X position.- Ypos: specifies the Y position.*- Height: display rectangle height.*- Width: display rectangle width.*

20、Output* Return: None: 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, V ertical);LCD_DrawLine(Xpos, (Ypos - Width + 1), Height, Vertical);/* Function Na

21、me* Description* Input*: LCD_DrawCircle: Displays a circle.: - Xpos: specifies the X position.- Ypos: specifies the Y position.*- Height: display rectangle height.*- Width: display rectangle width.* Output* Return: None: None*/void LCD_DrawCircle(u8 Xpos, u16 Ypos, u16 Radius)s32 D; u32 CurX;u32 Cur

22、Y;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_S

23、etCursor(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(); /* Prepa

24、re 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 - C

25、urY , Ypos - CurX);LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */ LCD_WriteRAM(TextColor);if (D 0)D += (CurX 2) + 6;elseD += (CurX - CurY) 2) + 10;CurY-;CurX+;/* Function Name : LCD_DrawMonoPict* Description: Displays a monocolor picture.* Input* Output* Return: - Pict: pointer to the picture a

26、rray. : None: None*/void LCD_DrawMonoPict(uc32 *Pict)u32 index = 0, i = 0;LCD_SetCursor(0, 319);LCD_WriteRAM_Prepare(); /* Prepare to write GRAM */ for(index = 0; index 2400; index+)for(i = 0; i 32; i+)if(Pictindex & (1 i) = 0 x00)LCD_WriteRAM(BackColor);elseLCD_WriteRAM(TextColor); /* Function Name

27、 : LCD_WriteBMP* Description : Displays a bitmap picture loaded in the internal Flash.* Input : - BmpAddress: Bmp picture address in the internal Flash.Function NameDescriptionInput* Output* Return* Output: None* Return: None*/ void LCD_WriteBMP(u32 BmpAddress)u32 index = 0, size = 0;size = *(vu16 *

28、) (BmpAddress + 2);size |= (*(vu16 *) (BmpAddress + 4) 16;index = *(vu16 *) (BmpAddress + 10);index |= (*(vu16 *) (BmpAddress + 12) 16; size = (size - index)/2;BmpAddress += index;LCD_WriteReg(R3, 0 x1008); LCD_WriteRAM_Prepare(); for(index = 0; index BRR = 0 x0200;/LCD_NCS_LOW();GPIOB-BRR = 0 x0100

29、;/LCD_RS_LOW();GPIOB-BSRR = 0 x0020; /LCD_NWR_HIGH();GPIOC-ODR = LCD_Reg; /GPIO_Write(LCD_DataPort,LCD_Reg);GPIOB-BRR = 0 x0020; /LCD_NWR_LOW();GPIOB-BSRR = 0 x0020; /LCD_NWR_HIGH();GPIOB-BSRR = 0 x0100; /LCD_RS_HIGH();GPIOC-ODR = LCD_RegValue; GPIOB-BRR = 0 x0020; GPIOB-BSRR = 0 x0020; GPIOB-BSRR =

30、 0 x0100;/*/GPIO_Write(LCD_DataPort,LCD_RegValue);/LCD_NWR_LOW();/LCD_NWR_HIGH();/LCD_RS_HIGH();Function Name Description Input* Output* Return: LCD_ReadReg: Reads the selected LCD Register.: None: None: LCD Register Value.*u16 LCD_ReadReg(u8 LCD_Reg) u16 temp;GPIOB-BRR = 0 x0200;GPIOB-BRR = 0 x0100

31、;GPIOB-BSRR = 0 x0020;/LCD_NCS_LOW();/LCD_RS_LOW();/LCD_NWR_HIGH();GPIOC-ODR = LCD_Reg;/GPIO_Write(LCD_DataPort,LCD_Reg);GPIOB-BRR = 0 x0020; /LCD_NWR_LOW();GPIOB-BSRR = 0 x0020;GPIOB-BSRR = 0 x0100;/LCD_NWR_HIGH();/LCD_RS_HIGH();LCD_BusIn();GPIOB-BRR = 0 x0400;/LCD_NRD_LOW();temp = GPIOC-IDR;/temp=

32、GPIO_ReadInputData(LCD_DataPort);GPIOB-BSRR = 0 x0400; /LCD_NRD_HIGH();LCD_BusOut();GPIOB-BSRR = 0 x0200;/LCD_NCS_HIGH();return temp;/* Function Name : LCD_WriteRAM_Prepare* Description: Prepare to write to the LCD RAM.* Input : None* Output: None* Return: None*/void LCD_WriteRAM_Prepare(void)GPIOB-

33、BRR = 0 x0200;GPIOB-BRR = 0 x0100;GPIOB-BSRR = 0 x0020;/LCD_NCS_LOW();/LCD_RS_LOW();/LCD_NWR_HIGH();*GPIOC-ODR = R34; GPIOB-BRR = 0 x0020; GPIOB-BSRR = 0 x0020; GPIOB-BSRR = 0 x0100;/GPIO_Write(LCD_DataPort,R34);/LCD_NWR_LOW();/LCD_NWR_HIGH();/LCD_RS_HIGH();GPIOB-BSRR = 0 x0200; /LCD_NCS_HIGH();*Fun

34、ction Name : LCD_WriteRAMDescriptionInput* Output* Return: Writes to the LCD RAM.: - RGB_Code: the pixel color in RGB mode (5-6-5). : None: None*void LCD_WriteRAM(u16 RGB_Code)GPIOB-BRR = 0 x0200; /LCD_NCS_LOW();GPIOB-BSRR = 0 x0100; /LCD_RS_HIGH();GPIOB-BSRR = 0 x0020; /LCD_NWR_HIGH();GPIOC-ODR = R

35、GB_Code; /GPIO_Write(LCD_DataPort,RGB_Code); GPIOB-BRR = 0 x0020;/LCD_NWR_LOW();GPIOB-BSRR = 0 x0020;GPIOB-BSRR = 0 x0100;/LCD_NWR_HIGH();/LCD_RS_HIGH();GPIOB-BSRR = 0 x0200;/LCD_NCS_HIGH();/* Function Name : LCD_ReadRAM* Description : Reads the LCD RAM.* Input : None* Output: None* Return: LCD RAM

36、Value.*/u16 LCD_ReadRAM(void)u16 temp;GPIOB-BRR = 0 x0200;/LCD_NCS_LOW();GPIOB-BRR = 0 x0100;/LCD_RS_LOW();GPIOB-BSRR= 0 x0020;/LCD_NWR_HIGH();GPIOC-ODR = R34;/GPIO_Write(LCD_DataPort,R34);GPIOB-BRR = 0 x0020;/LCD_NWR_LOW();GPIOB-BSRR= 0 x0020;/LCD_NWR_HIGH();GPIOB-BSRR= 0 x0100;/LCD_RS_HIGH();LCD_B

37、usIn();GPIOB-BRR = 0 x0400;/LCD_NRD_LOW();temp = GPIOC-IDR;/temp=GPIO_ReadInputData(LCD_DataPort);GPIOB-BSRR= 0 x0400;/LCD_NRD_HIGH();LCD_BusOut();GPIOB-BSRR= 0 x0200;/LCD_NCS_HIGH();return temp;/* Function Name : LCD_PowerOn* Description : Power on the LCD.* Input : None* Output: None* Return: None

38、*/void LCD_PowerOn(void)LCD_WriteReg(R16, 0 x0000);LCD_WriteReg(R17, 0 x0000);LCD_WriteReg(R18, 0 x0000);LCD_WriteReg(R19, 0 x0000);Delay_LCD(20);LCD_WriteReg(R16, 0 x17B0);Function NameDescriptionInput* Output* Return: None: None: None*LCD_WriteReg(R17, 0 x0137);Delay_LCD(5);LCD_WriteReg(R18, 0 x01

39、39);Delay_LCD(5);LCD_WriteReg(R19, 0 x1d00);LCD_WriteReg(R41, 0 x0013);Delay_LCD(5);LCD_WriteReg(R7, 0 x0173);/* Function Name : LCD_DisplayOn* Description : Enables the Display.* Input : None* Output: None* Return: None* /void LCD_DisplayOn(void)LCD_WriteReg(R7, 0 x0173);/* Function Name : LCD_Disp

40、layOff* Description : Disables the Display.* Input: None* Output: None* Return: None*/void LCD_DisplayOff(void)LCD_WriteReg(R7, 0 x0);/*: LCD_CtrlLinesConfig: Configures LCD Control lines.Push-Pull mode./void LCD_CtrlLinesConfig(void)GPIO_InitTypeDef GPIO_InitStructure;RCC_APB2PeriphClockCmd(RCC_APB

41、2Periph_GPIOB | RCC_APB2Periph_GPIOC ENABLE);GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_5 | GPIO_Pin_8 | GPIO_Pin_10;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;GPIO_Init(GPIOB, &GPIO_InitStructure);LCD_BusOut();GPIOB-BSRR |= 0 x0620;/* Function Name :