2021年11月08日 | Mini2440裸机液晶屏TD35驱动

我把地址定义都加到.h文件中，使用时只需包含lcd_td35.h即可。

能简单实现画点，画线，画矩形，显示图片，显示字符和字符串，显示数字功能。

// lcd_td35.h

// 2015.12.16

#ifndef __LCD_TD35_H__

#define __LCD_TD35_H__

#define U32 unsigned int

#define U16 unsigned short

#define S32 int

#define S16 short int

#define U8  unsigned char

#define    S8  char

#define    BYTE    char

#define    WORD     short

#define    DWORD    int

#define    UINT    U32

#define    LPSTR    U8 *        

#define TRUE     1   

#define FALSE     0

#define OK        1

#define FAIL    0

// S3C2440地址宏定义

//=====================================================================

// I/O PORT 

#define rGPACON    (*(volatile unsigned *)0x56000000)    //Port A control

#define rGPADAT    (*(volatile unsigned *)0x56000004)    //Port A data

#define rGPBCON    (*(volatile unsigned *)0x56000010)    //Port B control

#define rGPBDAT    (*(volatile unsigned *)0x56000014)    //Port B data

#define rGPBUP     (*(volatile unsigned *)0x56000018)    //Pull-up control B

#define rGPCCON    (*(volatile unsigned *)0x56000020)    //Port C control

#define rGPCDAT    (*(volatile unsigned *)0x56000024)    //Port C data

#define rGPCUP     (*(volatile unsigned *)0x56000028)    //Pull-up control C

#define rGPDCON    (*(volatile unsigned *)0x56000030)    //Port D control

#define rGPDDAT    (*(volatile unsigned *)0x56000034)    //Port D data

#define rGPDUP     (*(volatile unsigned *)0x56000038)    //Pull-up control D

#define rGPECON    (*(volatile unsigned *)0x56000040)    //Port E control

#define rGPEDAT    (*(volatile unsigned *)0x56000044)    //Port E data

#define rGPEUP     (*(volatile unsigned *)0x56000048)    //Pull-up control E

#define rGPFCON    (*(volatile unsigned *)0x56000050)    //Port F control

#define rGPFDAT    (*(volatile unsigned *)0x56000054)    //Port F data

#define rGPFUP     (*(volatile unsigned *)0x56000058)    //Pull-up control F

#define rGPGCON    (*(volatile unsigned *)0x56000060)    //Port G control

#define rGPGDAT    (*(volatile unsigned *)0x56000064)    //Port G data

#define rGPGUP     (*(volatile unsigned *)0x56000068)    //Pull-up control G

#define rGPHCON    (*(volatile unsigned *)0x56000070)    //Port H control

#define rGPHDAT    (*(volatile unsigned *)0x56000074)    //Port H data

#define rGPHUP     (*(volatile unsigned *)0x56000078)    //Pull-up control H

#define rGPJCON    (*(volatile unsigned *)0x560000d0)    //Port J control

#define rGPJDAT    (*(volatile unsigned *)0x560000d4)    //Port J data

#define rGPJUP     (*(volatile unsigned *)0x560000d8)    //Pull-up control J

// PWM TIMER 1

#define rTCFG0  (*(volatile unsigned *)0x51000000)    //Timer 0 configuration

#define rTCFG1  (*(volatile unsigned *)0x51000004)    //Timer 1 configuration

#define rTCON   (*(volatile unsigned *)0x51000008)    //Timer control

#define rTCNTB1 (*(volatile unsigned *)0x51000018)    //Timer count buffer 1

#define rTCMPB1 (*(volatile unsigned *)0x5100001c)    //Timer compare buffer 1

#define rTCNTO1 (*(volatile unsigned *)0x51000020)    //Timer count observation 1

// TIMER 3

#define rTCNTB3 (*(volatile unsigned *)0x51000030)    //Timer count buffer 3

#define rTCMPB3 (*(volatile unsigned *)0x51000034)    //Timer compare buffer 3

#define rTCNTO3 (*(volatile unsigned *)0x51000038)    //Timer count observation 3

// LCD CONTROLLER

#define rLCDCON1    (*(volatile unsigned *)0x4d000000)    //LCD control 1

#define rLCDCON2    (*(volatile unsigned *)0x4d000004)    //LCD control 2

#define rLCDCON3    (*(volatile unsigned *)0x4d000008)    //LCD control 3

#define rLCDCON4    (*(volatile unsigned *)0x4d00000c)    //LCD control 4

#define rLCDCON5    (*(volatile unsigned *)0x4d000010)    //LCD control 5

#define rLCDSADDR1  (*(volatile unsigned *)0x4d000014)    //STN/TFT Frame buffer start address 1

#define rLCDSADDR2  (*(volatile unsigned *)0x4d000018)    //STN/TFT Frame buffer start address 2

#define rLCDSADDR3  (*(volatile unsigned *)0x4d00001c)    //STN/TFT Virtual screen address set

#define rREDLUT     (*(volatile unsigned *)0x4d000020)    //STN Red lookup table

#define rGREENLUT   (*(volatile unsigned *)0x4d000024)    //STN Green lookup table 

#define rBLUELUT    (*(volatile unsigned *)0x4d000028)    //STN Blue lookup table

#define rDITHMODE   (*(volatile unsigned *)0x4d00004c)    //STN Dithering mode

#define rTPAL       (*(volatile unsigned *)0x4d000050)    //TFT Temporary palette

#define rLCDINTPND  (*(volatile unsigned *)0x4d000054)    //LCD Interrupt pending

#define rLCDSRCPND  (*(volatile unsigned *)0x4d000058)    //LCD Interrupt source

#define rLCDINTMSK  (*(volatile unsigned *)0x4d00005c)    //LCD Interrupt mask

#define rTCONSEL     (*(volatile unsigned *)0x4d000060)    //LPC3600 Control --- edited by junon

#define PALETTE     0x4d000400                        //Palette start address

//=================================================================================

// LCD_TD35

#define LCD_TD35

#define LCD_WIDTH 240

#define LCD_HEIGHT 320

#define LCD_PIXCLOCK 4

#define LCD_RIGHT_MARGIN 100

#define LCD_LEFT_MARGIN 0

#define LCD_HSYNC_LEN 4

#define LCD_UPPER_MARGIN 0

#define LCD_LOWER_MARGIN 0

#define LCD_VSYNC_LEN 9

// 延时Ms

void Lcd_Delay_Ms(int time);

// LCD背光

void LcdBkLtSet(U32 HiRatio);

// 初始化用于LCD的引脚

void Lcd_Port_Init(void);

// MODE_16BIT_240320

void Lcd_Init(void);

/*

 * 设置是否输出LCD电源开关信号LCD_PWREN

 * 输入参数：

 *     invpwren: 0 - LCD_PWREN有效时为正常极性

 *               1 - LCD_PWREN有效时为反转极性

 *     pwren:    0 - LCD_PWREN输出有效

 *               1 - LCD_PWREN输出无效

 */

void Lcd_PowerEnable(int invpwren, int pwren);

// LCD控制器是否输出信号

void Lcd_EnvidOnOff(int onoff);

// 完成所有初始化

void Lcd_TD35_Init(void);

// 画像素点

void PutPixel(U32 x,U32 y,U16 c);

// 用单颜色清屏(5:6:5 RGB)

void Lcd_ClearScr(U16 c);

// 画线

void Draw_Line(int x1,int y1,int x2,int y2, U16 color);

// 画矩形

void Draw_Rectangle(int x1,int y1,int x2,int y2, U16 color);

// 显示图片(240x320)

void Draw_Bmp(int x0,int y0,int h,int l,const unsigned char *bmp);

// 显示ASCII 字符

// x,y:起始坐标

// color:颜色

// size:字体大小 12/16/24

// mode:当前背景(1)自定义白色背景(0)

// ch:要显示的字符:" "--->"~"

void Draw_Char(U16 x, U16 y, U16 color, U8 size, U8 mode, U8 ch);

// 显示字符串

// x,y:起点坐标

// width,height:区域大小  

// color:颜色

// size:字体大小 12/16/24

// mode:当前背景(1)自定义白色背景(0)

// *p:字符串起始地址 

void Draw_String(U16 x, U16 y, U16 width, U16 height, U16 color, U8 size, U8 mode, U8 p[]);  

// m^n次方

U32 Lcd_Pow(U8 m,U8 n);

// 显示数字

// x,y:起点坐标

// color:颜色

// size:字体大小 12/16/24

// mode:当前背景(1)自定义白色背景(0)

// num:  

// len:显示位数

// 超过前面是否补0，是（1）

void Draw_Num(U16 x,U16 y,U16 color,U8 size,U8 mode,U32 num,U8 len,U8 show0);

// 测试用

void Lcd_TD35_Test(void);

#endif

// lcd_td35.c

// 2015.12.16

#include "lcd_td35.h"

#include "lcd_font.h"

#include "scene1_240x320.h" // 包含图片数据

#define GPB1_TO_OUT()       (rGPBUP &= 0xfffd, rGPBCON &= 0xfffffff3, rGPBCON |= 0x00000004)

#define GPB1_TO_1()         (rGPBDAT |= 0x0002)

#define GPB1_TO_0()         (rGPBDAT &= 0xfffd)

#define LCD_XSIZE  LCD_WIDTH    // 240

#define LCD_YSIZE  LCD_HEIGHT   // 320

#define SCR_XSIZE  LCD_WIDTH

#define SCR_YSIZE  LCD_HEIGHT   

volatile static unsigned short LCD_BUFFER[SCR_YSIZE][SCR_XSIZE];

void Lcd_Delay_Ms(int time)

{

    // PCLK=50MHz

    //U32 val = (PCLK>>3)/1000-1;

    U32 val = (50000000>>3)/1000-1; // 6250-1=6249

    rTCFG0 &= ~(0xff<<8);

    rTCFG0 |= 3<<8;         //prescaler = 3+1

    rTCFG1 &= ~(0xf<<12);

    rTCFG1 |= 0<<12;        //mux = 1/2

    rTCNTB3 = val;          //1000Hz   freq=50M/4/2/6249

    rTCMPB3 = val>>1;       // 50%

    rTCON &= ~(0xf<<16);

    rTCON |= 0xb<<16;       //interval, inv-off, update TCNTB3&TCMPB3, start timer 3

    rTCON &= ~(2<<16);      //clear manual update bit

    while(time--) {

        while(rTCNTO3>=val>>1);

        while(rTCNTO3>1);

    };

}

void LcdBkLtSet(U32 HiRatio)

{

#define FREQ_PWM1       1000

    if(!HiRatio)

    {

        rGPBCON  = rGPBCON & (~(3<<2)) | (1<<2);

        rGPBDAT &= ~(1<<1);

        return;

    }

    rGPBCON = rGPBCON & (~(3<<2)) | (2<<2);

    if( HiRatio > 100 )

        HiRatio = 100 ;