我参考文档上介绍yuv设置有640*480 320*280等，但是更新的程序中却有 960*272 和480*272这是怎么回事？是根据什么来设置sccb的，文档资料太深奥看不到啊？

在480*272中还有了 *pEPPI1_VDELAY  = 24;   //EPPI FS2 Width
ssync();
*pEPPI1_HDELAY  = 154;  这些延迟参数是怎么确定的？

bf54x_cmos1yuv_tft 代码/****************************************************************************
* 名称 ： InitPPI2DMA
* 功能 ： 初始化EPPI1的DMA寄存器，DMA13
* 入口参数 ：无
* 返回值 ：无
****************************************************************************/
void InitPPI1DMA(void)
{
*pDMA13_START_ADDR = cmosbuffer1;
// Line_Length 2 bit transfers will be executed

*pDMA13_X_COUNT = 480/4;
// *pDMA13_X_COUNT = 480*2/4;
// The modifier is set to 2 because of the 16 bit transfers
*pDMA13_X_MODIFY = 0x4;
// Frame_Length 16 bit transfers will be executed
*pDMA13_Y_COUNT = 272;

// The modifier is set to 2 because of the 16 bit transfers
*pDMA13_Y_MODIFY = 0x4;
// DMA Config: Enable DMA | Generate interrupt on completion | Memory read DMA |
// 16-bit xfers | 2-D DMA | Discard DMA FIFO before start
*pDMA13_CONFIG = WNR |DI_EN |WDSIZE_32 | DMA2D | SYNC ;
ssync();


}

\bf54x_doublecmos_tft中的

void InitPPI1DMA(void)
{
*pDMA13_START_ADDR = cmos1buffer1;
// Line_Length 2 bit transfers will be executed

*pDMA13_X_COUNT = 240*2/4;
// The modifier is set to 2 because of the 16 bit transfers
*pDMA13_X_MODIFY = 0x4;
// Frame_Length 16 bit transfers will be executed
*pDMA13_Y_COUNT = 272;

// The modifier is set to 2 because of the 16 bit transfers
*pDMA13_Y_MODIFY = 0x4;
// DMA Config: Enable DMA | Generate interrupt on completion | Memory read DMA |
// 16-bit xfers | 2-D DMA | Discard DMA FIFO before start
*pDMA13_CONFIG = WNR |DI_EN |WDSIZE_32 | DMA2D | SYNC ;
ssync();
}

另外我还想知道按照文档上说明下载flash后，开发板并无反应，原来的工程都不能设置为调试下载模式！？这个怎么处理啊？