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我在0x3380 0000内存处开辟了显示内存空间，然后在ADS＋HJTAG在线仿真下修改 0x3380 0001 。。。地址上的数据。从MEMORY窗口观察数据确实写进显存了，那为什么屏上没有显示呢？<br /><br />附上我的初始化程序，请您帮我看看。<br />static void Lcd_Init(void)<br />{<br /> rGPCUP=0xffffffff; // Disable Pull-up register<br /> rGPCCON=0xaaaaaaaa; //Initialize VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND <br /><br /> rGPDUP=0xffffffff; // Disable Pull-up register<br /> rGPDCON=0xaaaaaaaa; //Initialize VD[15:8]<br /><br />frameBuffer16BitTft320240A = (U32(*)[SCR_XSIZE_TFT_320240])LCDFRAMEBUFFERA;<br />//frameBuffer16BitTft320240B = (U16(*)[SCR_XSIZE_TFT_320240])LCDFRAMEBUFFERB;<br />//frameBuffer16BitTft320240C = (U16(*)[SCR_XSIZE_TFT_320240])LCDFRAMEBUFFERC;<br /><br /> <br /> rLCDCON1=(CLKVAL_TFT_240320<<8)|(MVAL_USED<<7)|(3<<5)|(12<<1)|0;<br /> // TFT LCD panel,12bpp TFT,ENVID=off<br /> rLCDCON2=(VBPD_240320<<24)|(LINEVAL_TFT_240320<<14)|(VFPD_240320<<6)|(VSPW_240320);<br /> rLCDCON3=(HBPD_240320<<19)|(HOZVAL_TFT_240320<<8)|(HFPD_240320);<br /> rLCDCON4=(MVAL<<8)|(HSPW_240320);<br /> rLCDCON5=(1<<11)|(1<<9)|(1<<8); //FRM5:6:5,HSYNC and VSYNC are inverted<br /> <br /> rLCDSADDR1=(((U32)frameBuffer16BitTft320240A>>22)<<21)|M5D((U32)frameBuffer16BitTft320240A>>1);//lcd dma 起始地址<br /> rLCDSADDR2=M5D( ((U32)frameBuffer16BitTft320240A+(SCR_XSIZE_TFT_240320*LCD_YSIZE_TFT_240320*2))>>1 );//结束地址<br /> rLCDSADDR3=(((SCR_XSIZE_TFT_240320-LCD_XSIZE_TFT_240320)/1)<<11)|(LCD_XSIZE_TFT_240320/1);<br /> rLCDINTMSK|=(3); // MASK LCD Sub Interrupt<br /> rLPCSEL&=(~7); // Disable LPC3600<br /> rTPAL=0; // Disable Temp Palette<br /> <br /> <br />}<br /><hr><br />void Lcd_Tft_LTV350QV_F05_Init(void)<br />{<br /> Lcd_Init();<br /> //LcdBkLtSet( 70 ) ;<br /> rLPCSEL&=~(7);<br /> rLPCSEL|=(7); // 240320,Enable LPC3600 <br /> Lcd_PowerEnable(0, 1);<br /> Lcd_EnvidOnOff(1); //turn on vedio<br /> Lcd_ClearScr(0xce40);<br /><br />}<br /><hr><br />**************************************************************<br />320×240 16Bpp TFT LCD全屏填充特定颜色单元或清屏<br />**************************************************************/<br />void Lcd_ClearScr( U32 c)<br />{<br /> unsigned int x,y ;<br /> <br /> for( y = 0 ; y < SCR_YSIZE_TFT_320240 ; y++ {<br /> for( x = 0 ; x < SCR_XSIZE_TFT_320240 ; x++ )<br /> {<br /> frameBuffer16BitTft320240A[y][x] = c ;<br /> }<br /> }<br />}
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