//====================================================================================//文 件 名：TFT_Driver.c//功能描述: TFT驅(qū)動(dòng)程序(底層驅(qū)動(dòng))//維護(hù)記錄: 2007年1月17日//====================================================================================#include "TFT_Driver.h"STR_TFT_SETTING TFT_Settings;//=============================================================//語(yǔ)法格式：	void TFT_SetBufAddr(unsigned short *Buff1, unsigned short *Buff2, unsigned short *Buff3)//實(shí)現(xiàn)功能：	更新TFT緩沖地址//參數(shù)：		Buff1	-	緩沖區(qū)1首地址//				Buff2	-	緩沖區(qū)2首地址//				Buff3	-	緩沖區(qū)3首地址//返回值：		無(wú)//=============================================================void TFT_SetBufAddr(unsigned short *Buff0, unsigned short *Buff1, unsigned short *Buff2){	TFT_Settings.Buf[0] = (unsigned short *)(*P_LCD_BUFFER_SA1 = (unsigned int)Buff0);	TFT_Settings.Buf[1] = (unsigned short *)(*P_LCD_BUFFER_SA2 = (unsigned int)Buff1);	TFT_Settings.Buf[2] = (unsigned short *)(*P_LCD_BUFFER_SA3 = (unsigned int)Buff2);	TFT_Settings.WorkBuf = TFT_Settings.DispBuf = *P_LCD_BUFFER_SEL = 0;}//=============================================================//語(yǔ)法格式：	void TFT_SetBufFmt(unsigned int FMT1, unsigned int FMT2)//實(shí)現(xiàn)功能：	更新TFT緩沖區(qū)數(shù)據(jù)格式設(shè)置//參數(shù)：		FMT1	-	緩沖區(qū)格式1//				FMT2	-	緩沖區(qū)格式2//返回值：		無(wú)//=============================================================void TFT_SetBufFmt(unsigned int FMT1, unsigned int FMT2){	TFT_Settings.Buf_Format1 = *P_TFT_FRAME_FMT1 = FMT1;	TFT_Settings.Buf_Format2 = *P_TFT_FRAME_FMT2 = FMT2;}//=============================================================//語(yǔ)法格式：	unsigned short *TFT_SelDispBuf(unsigned char Buf_Cursor);//實(shí)現(xiàn)功能：	選擇一個(gè)緩沖區(qū)作為顯示緩沖區(qū)//參數(shù)：		Buf_Cursor - 作為顯示輸出的緩沖區(qū)序號(hào)(0~2)//							 大于2的參數(shù)可以獲取當(dāng)前使用的緩沖區(qū)首地址//返回值：		作為顯示輸出的緩沖區(qū)起始地址//=============================================================unsigned short *TFT_SelDispBuf(unsigned char Buf_Cursor){	switch(Buf_Cursor)	{		case 0:			TFT_Settings.DispBuf = *P_LCD_BUFFER_SEL = 0;			break;		case 1:			TFT_Settings.DispBuf = *P_LCD_BUFFER_SEL = 1;			break;		case 2:			TFT_Settings.DispBuf = *P_LCD_BUFFER_SEL = 2;			break;		default:			return TFT_Settings.Buf[TFT_Settings.DispBuf];			break;			}	return TFT_Settings.Buf[Buf_Cursor];}//=============================================================//語(yǔ)法格式：	unsigned short *TFT_SelWorkBuf(unsigned char Buf_Cursor);//實(shí)現(xiàn)功能：	選擇一個(gè)緩沖區(qū)作為工作緩沖區(qū)(TFT_API中的函數(shù)都是對(duì)工作緩沖區(qū)操作的)//參數(shù)：		Buf_Cursor - 作為工作緩沖區(qū)的序號(hào)(0~2)//							 大于2的參數(shù)可以獲取當(dāng)前使用的緩沖區(qū)首地址//返回值：		作為工作緩沖區(qū)的起始地址//=============================================================unsigned short *TFT_SelWorkBuf(unsigned char Buf_Cursor){	switch(Buf_Cursor)	{		case 0:			TFT_Settings.WorkBuf = 0;			break;		case 1:			TFT_Settings.WorkBuf = 1;			break;		case 2:			TFT_Settings.WorkBuf = 2;			break;		default:			return TFT_Settings.Buf[TFT_Settings.WorkBuf];			break;			}	return TFT_Settings.Buf[Buf_Cursor];}void TFT_SetWorkBufSize(short WorkBufWidth, short WorkBufHeight){	TFT_Settings.WorkBufWidth = (WorkBufWidth >= TFT_WIDTH ? WorkBufWidth : TFT_WIDTH);	TFT_Settings.WorkBufHeight = (WorkBufHeight >= TFT_HEIGHT ? WorkBufHeight : TFT_HEIGHT);	TFT_Settings.RowStart = *P_TFT_ROW_START = 0;	TFT_Settings.ColStart = *P_TFT_COL_START = 0;	*P_TFT_DUMMY_WIDTH = TFT_Settings.WorkBufWidth - TFT_WIDTH;}void TFT_GetWorkBufSize(short *WorkBufWidth, short *WorkBufHeight){	*WorkBufWidth = TFT_Settings.WorkBufWidth;	*WorkBufHeight = TFT_Settings.WorkBufHeight;}void TFT_SetDispOffset(unsigned short OffX, unsigned short OffY){	if((OffX + TFT_WIDTH) > TFT_Settings.WorkBufWidth)		OffX = TFT_Settings.WorkBufWidth - TFT_WIDTH;	TFT_Settings.ColStart = *P_TFT_COL_START = OffX;	TFT_Settings.RowStart = *P_TFT_ROW_START = OffY;	*P_TFT_DUMMY_WIDTH = TFT_Settings.WorkBufWidth - OffX - TFT_WIDTH;}//=============================================================//語(yǔ)法格式：	void TFT_InitHardware(void);//實(shí)現(xiàn)功能：	初始化TFT相關(guān)硬件寄存器//參數(shù)：		無(wú)//返回值：		無(wú)//=============================================================extern void *memset(void *s, int c, unsigned int n);void TFT_InitHardware(void){	*P_BUFCTRL_CLK_CONF = 0x03; 	*P_LCD_INTERFACE_SEL |= TFT_INTERFACE;					// 管腳復(fù)用，選擇TFT_AUO模式	*P_LCD_CLK_CONF = C_LCD_RST_DIS | C_LCD_CLK_EN;			// LCD模式時(shí)鐘使能	// 設(shè)置TFT-LCD數(shù)據(jù)模式	*P_TFT_DATA_SEQ = TFT_DATA_SEQ;							// TFT-LCD輸出數(shù)據(jù)格式	*P_TFT_DATA_FMT = TFT_DATA_FMT;							// TFT-LCD管腳輸出數(shù)據(jù)格式	// 設(shè)置TFT-LCD的行信號(hào)	*P_TFT_HOR_ACT = TFT_HOR_ACT;	*P_TFT_HOR_FRONT = TFT_HOR_FRONT;	*P_TFT_HOR_BACK = TFT_HOR_BACK;	*P_TFT_HOR_SYNC = TFT_HOR_SYNC;		// 設(shè)置TFT-LCD的場(chǎng)信號(hào)	*P_TFT_VER_ACT = TFT_VER_ACT;	*P_TFT_VER_FRONT = TFT_VER_FRONT;	*P_TFT_VER_BACK = TFT_VER_BACK;	*P_TFT_VER_SYNC = TFT_VER_SYNC;	// 設(shè)置TFT-LCD顯示的起始位置	*P_TFT_COL_WIDTH = TFT_WIDTH;	TFT_SetWorkBufSize(TFT_WINDOW_WIDTH, TFT_WINDOW_HEIGHT);	TFT_SetBufFmt(TFT_FRAME_FMT1, TFT_FRAME_FMT2);	TFT_SetBufAddr((unsigned short*)TFT_BUFFER0_SA, (unsigned short*)TFT_BUFFER1_SA, (unsigned short*)TFT_BUFFER2_SA);	memset(TFT_Settings.Buf[0], 0,			TFT_Settings.WorkBufWidth * TFT_Settings.WorkBufHeight * 2);	memset(TFT_Settings.Buf[1], 0,			TFT_Settings.WorkBufWidth * TFT_Settings.WorkBufHeight * 2);	memset(TFT_Settings.Buf[2], 0,			TFT_Settings.WorkBufWidth * TFT_Settings.WorkBufHeight * 2);	*P_BUFCTRL_CLK_CONF = 0x03;	// 設(shè)置TFT-LCD的控制寄存器	*P_TFT_INT_STATUS = ~C_TFT_INT_EN;			// 中斷不使能	// 使能TFT模塊，圖像不放大，選擇6.75MHz時(shí)鐘	*P_TFT_MODE_CTRL = C_TFT_CTRL_EN | TFT_CLK_SET;}