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？
附上我的初始化程序，请您帮我看看。
static void Lcd_Init(void)
{
rGPCUP=0xffffffff; // Disable Pull-up register
rGPCCON=0xaaaaaaaa; //Initialize VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND
rGPDUP=0xffffffff; // Disable Pull-up register
rGPDCON=0xaaaaaaaa; //Initialize VD[15:8]
frameBuffer16BitTft320240A = (U32(*)[SCR_XSIZE_TFT_320240])LCDFRAMEBUFFERA;
//frameBuffer16BitTft320240B = (U16(*)[SCR_XSIZE_TFT_320240])LCDFRAMEBUFFERB;
//frameBuffer16BitTft320240C = (U16(*)[SCR_XSIZE_TFT_320240])LCDFRAMEBUFFERC;
rLCDCON1=(CLKVAL_TFT_240320<<8)|(MVAL_USED<<7)|(3<<5)|(12<<1)|0;
// TFT LCD panel,12bpp TFT,ENVID=off
rLCDCON2=(VBPD_240320<<24)|(LINEVAL_TFT_240320<<14)|(VFPD_240320<<6)|(VSPW_240320);
rLCDCON3=(HBPD_240320<<19)|(HOZVAL_TFT_240320<<8)|(HFPD_240320);
rLCDCON4=(MVAL<<8)|(HSPW_240320);
rLCDCON5=(1<<11)|(1<<9)|(1<<8); //FRM5:6:5,HSYNC and VSYNC are inverted
rLCDSADDR1=(((U32)frameBuffer16BitTft320240A>>22)<<21)|M5D((U32)frameBuffer16BitTft320240A>>1);//lcd dma 起始地址
rLCDSADDR2=M5D( ((U32)frameBuffer16BitTft320240A+(SCR_XSIZE_TFT_240320*LCD_YSIZE_TFT_240320*2))>>1 );//结束地址
rLCDSADDR3=(((SCR_XSIZE_TFT_240320-LCD_XSIZE_TFT_240320)/1)<<11)|(LCD_XSIZE_TFT_240320/1);
rLCDINTMSK|=(3); // MASK LCD Sub Interrupt
rLPCSEL&=(~7); // Disable LPC3600
rTPAL=0; // Disable Temp Palette
}
<hr>
void Lcd_Tft_LTV350QV_F05_Init(void)
{
Lcd_Init();
//LcdBkLtSet( 70 ) ;
rLPCSEL&=~(7);
rLPCSEL|=(7); // 240320,Enable LPC3600
Lcd_PowerEnable(0, 1);
Lcd_EnvidOnOff(1); //turn on vedio
Lcd_ClearScr(0xce40);
}
<hr>
**************************************************************
320×240 16Bpp TFT LCD全屏填充特定颜色单元或清屏
**************************************************************/
void Lcd_ClearScr( U32 c)
{
unsigned int x,y ;
for( y = 0 ; y < SCR_YSIZE_TFT_320240 ; y++ {
for( x = 0 ; x < SCR_XSIZE_TFT_320240 ; x++ )
{
frameBuffer16BitTft320240A[y][x] = c ;
}
}
} |
楼主
标题置顶
标题高亮
