AVR128驱动2.4寸TFT(主控芯片ILI9325).doc
AVR128驱动2.4寸TFT(主控芯片ILI9325)单片机 2010-08-29 03:46:53 阅读255 评论0 字号：大中小 订阅 1、原理图：AVR128与TFT最小系统原理图。 2、程序/*/*lcd.c*/#include "lcd.h"int main(void) InitIO();/*IO口初始化*/ ILI9325_Initial();/*LCD初始化*/ ClearScreen(0xFFFF);/*清屏*/ /LCD_SetPos(0,0,239,319); while(1) Pant(0xf800,0,240,0,40); /红色 Pant(0X07E0,0,240,40,80); /绿色 Pant(0x001f,0,240,80,120); /蓝色 Pant(0xf800,0,240,120,160); /红色 Pant(0X07E0,0,240,160,200); /绿色 Pant(0x001f,0,240,200,240); /蓝色 Pant(0xf800,0,240,240,280); /红色 Pant(0X07E0,0,240,280,320); /绿色 delayms(1000); delayms(1000); ClearScreen(0xFFFF); Pant(0xf800,0,240,0,320); /红色 delayms(1000); delayms(1000); ClearScreen(0xFFFF); Pant(0X07E0,0,240,0,320); /绿色 delayms(1000); delayms(1000); ClearScreen(0xFFFF); Pant(0x001f,0,240,0,320); /蓝色 delayms(1000); delayms(1000); ClearScreen(0xFFFF); return 1; /*/*lcd.h*/*包含文件*/#include <avr/io.h>#include<util/delay.h>#include<avr/pgmspace.h>/*类型定义*/typedef unsigned char uint8;typedef unsigned int uint16;typedef unsigned long uint32;#define WINDOW_XADDR_START 0x0050 / Horizontal Start Address Set#define WINDOW_XADDR_END 0x0051 / Horizontal End Address Set#define WINDOW_YADDR_START 0x0052 / Vertical Start Address Set#define WINDOW_YADDR_END 0x0053 / Vertical End Address Set#define GRAM_XADDR 0x0020 / GRAM Horizontal Address Set#define GRAM_YADDR 0x0021 / GRAM Vertical Address Set#define GRAMWR 0x0022 / memory write#define _nop_() asm("NOP")#define LCD_RS_DDR DDRG /数据/命令切换#define LCD_RS_PORT PORTG#define LCD_RS_BIT 2#define LCD_CS_DDR DDRG /片选#define LCD_CS_PORT PORTG#define LCD_CS_BIT 3#define LCD_WR_DDR DDRG /写控制#define LCD_WR_PORT PORTG#define LCD_WR_BIT 0#define LCD_RD_DDR DDRG /读控制#define LCD_RD_PORT PORTG#define LCD_RD_BIT 1#define LCD_RST_DDR DDRG /复位 #define LCD_RST_PORT PORTG#define LCD_RST_BIT 4#define LCD_CS_H LCD_CS_PORT |= 1<<LCD_CS_BIT#define LCD_CS_L LCD_CS_PORT &= (1<<LCD_CS_BIT) /SCE#define LCD_RS_H LCD_RS_PORT |= 1<<LCD_RS_BIT#define LCD_RS_L LCD_RS_PORT &= (1<<LCD_RS_BIT) /A0 #define LCD_RST_H LCD_RST_PORT |= 1<<LCD_RST_BIT#define LCD_RST_L LCD_RST_PORT &= (1<<LCD_RST_BIT) /RST#define LCD_WR_H LCD_WR_PORT |= 1<<LCD_WR_BIT#define LCD_WR_L LCD_WR_PORT &= (1<<LCD_WR_BIT)#define LCD_RD_H LCD_RD_PORT |= 1<<LCD_RD_BIT#define LCD_RD_L LCD_RD_PORT &= (1<<LCD_RD_BIT)#define ComCtrl PORTG#define ComCtrlDDR DDRG#define DataH PORTC#define DataL PORTA#define DataDDRH DDRC#define DataDDRL DDRA /*作 者:jundg函数名:void InitIO(void)函数功能:IO口初始化函数参数:无返回值:无*/void InitIO(void) ComCtrlDDR=0x1f; DataDDRH=0xff; DataDDRL=0xff; DataH=0xff; DataL=0xff; ComCtrl=0x1f;/*作 者:jundg函数名:void delayms(unsigned int count)函数功能:延时函数函数参数:时间值返回值:无*/void delayms(unsigned int count) int i,j; for(i=0;i<count;i+) for(j=0;j<260;j+); /*作 者:jundg函数名:void Write_Cmd(unsigned char DH,unsigned char DL)函数功能:写命令函数参数:16bitCOM返回值:无*/void Write_Cmd(unsigned char DH,unsigned char DL) LCD_CS_L; LCD_RS_L; DataH=DH; LCD_WR_L; LCD_WR_H; DataL=DL; LCD_WR_L; LCD_WR_H; LCD_CS_H;/*作 者:jundg函数名:void Write_Data(unsigned char DH,unsigned char DL)函数功能:写数据函数参数:16bit DATA返回值:无*/void Write_Data(unsigned char DH,unsigned char DL) LCD_CS_L; LCD_RS_H; DataH=DH; LCD_WR_L; LCD_WR_H; DataL=DL; LCD_WR_L; LCD_WR_H; LCD_CS_H;/*作 者:jundg函数名:void Write_Cmd_Data (unsigned char x,unsigned int y)函数功能:写命令、数据函数参数:8bit COM、8bit DATA返回值:无*/void Write_Cmd_Data (unsigned char x,unsigned int y) unsigned char m,n; m=y>>8; n=y; Write_Cmd(0x00,x); Write_Data(m,n);/*作 者:jundg函数名:static void LCD_SetPos(unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1)函数功能:设置显示区域函数参数:x0行起始点,x1行结束点,y0列起始点,y1列结束点返回值:无*/static void LCD_SetPos(unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1) Write_Cmd_Data(WINDOW_XADDR_START,x0); Write_Cmd_Data(WINDOW_XADDR_END,x1); Write_Cmd_Data(WINDOW_YADDR_START,y0); Write_Cmd_Data(WINDOW_YADDR_END,y1); Write_Cmd_Data(GRAM_XADDR,x0); Write_Cmd_Data(GRAM_YADDR,y0); Write_Cmd (0x00,0x22);/LCD_WriteCMD(GRAMWR);/*作 者:jundg函数名:void Pant(int dcolor,unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1)函数功能:设置显示区域并显示颜色函数参数:dcolor颜色值,x0行起始点,x1行结束点,y0列起始点,y1列结束点返回值:无*/void Pant(int dcolor,unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1) int i,j; LCD_SetPos(x0,x1,y0,y1); for(i=0;i<320;i+) for (j=0;j<240;j+) Write_Data(dcolor>>8,dcolor); /*作 者:jundg函数名:void ClearScreen(unsigned int bColor)函数功能:清屏函数参数:bColor=0xffff清屏返回值:无*/void ClearScreen(unsigned int bColor) unsigned int i,j; LCD_SetPos(0,240,0,320);/320x240 for (i=0;i<322;i+) for (j=0;j<240;j+) Write_Data(bColor>>8,bColor); /*作 者:jundg函数名:void ILI9325_Initial(void)函数功能:LCD初始化函数参数:无返回值:无*/void ILI9325_Initial(void) LCD_CS_H; delayms(5); LCD_RST_L; delayms(5); LCD_RST_H; delayms(5); delayms(50); Write_Cmd_Data(0x0001,0x0100); Write_Cmd_Data(0x0002,0x0700); Write_Cmd_Data(0x0003,0x1030); Write_Cmd_Data(0x0004,0x0000); Write_Cmd_Data(0x0008,0x0207); Write_Cmd_Data(0x0009,0x0000); Write_Cmd_Data(0x000A,0x0000); Write_Cmd_Data(0x000C,0x0000); Write_Cmd_Data(0x000D,0x0000); Write_Cmd_Data(0x000F,0x0000);/power on sequence VGHVGL Write_Cmd_Data(0x0010,0x0000); Write_Cmd_Data(0x0011,0x0007); Write_Cmd_Data(0x0012,0x0000); Write_Cmd_Data(0x0013,0x0000); /vgh Write_Cmd_Data(0x0010,0x1290); Write_Cmd_Data(0x0011,0x0227); /delayms(100); /vregiout Write_Cmd_Data(0x0012,0x001d); /0x001b /delayms(100); /vom amplitude Write_Cmd_Data(0x0013,0x1500); /delayms(100); /vom H Write_Cmd_Data(0x0029,0x0018); Write_Cmd_Data(0x002B,0x000D); /gamma Write_Cmd_Data(0x0030,0x0004); Write_Cmd_Data(0x0031,0x0307); Write_Cmd_Data(0x0032,0x0002);/ 0006 Write_Cmd_Data(0x0035,0x0206); Write_Cmd_Data(0x0036,0x0408); Write_Cmd_Data(0x0037,0x0507); Write_Cmd_Data(0x0038,0x0204);/0200 Write_Cmd_Data(0x0039,0x0707); Write_Cmd_Data(0x003C,0x0405);/ 0504 Write_Cmd_Data(0x003D,0x0F02); /ram Write_Cmd_Data(0x0050,0x0000); Write_Cmd_Data(0x0051,0x00EF); Write_Cmd_Data(0x0052,0x0000); Write_Cmd_Data(0x0053,0x013F); Write_Cmd_Data(0x0060,0xA700); Write_Cmd_Data(0x0061,0x0001); Write_Cmd_Data(0x006A,0x0000); / Write_Cmd_Data(0x0080,0x0000); Write_Cmd_Data(0x0081,0x0000); Write_Cmd_Data(0x0082,0x0000); Write_Cmd_Data(0x0083,0x0000); Write_Cmd_Data(0x0084,0x0000); Write_Cmd_Data(0x0085,0x0000); / Write_Cmd_Data(0x0090,0x0010); Write_Cmd_Data(0x0092,0x0600); Write_Cmd_Data(0x0093,0x0003); Write_Cmd_Data(0x0095,0x0110); Write_Cmd_Data(0x0097,0x0000); Write_Cmd_Data(0x0098,0x0000); Write_Cmd_Data(0x0007,0x0133);/ Write_Cmd_Data(0x0022);/
