C6748 lcd控制器

用C6748的lcd控制器，lcd显示的时候经常会跳屏。有时候又是好的。有时候就是显示区域会错位，跳屏。我设置lcd最高优先级，给了一个内存地址0XC1f00000

Tony Tang：

按下面步骤，应该能解决你的问题：

•In order to ensure LCDC bandwidth to prevent flicker issue, adjust system and LCDC configuration as below:
–1. set system configure register MSTPRIx to ensure LCDC is highest priority on SCR, other master lower than LCDC, 0 is highest priority.

–2. set DDR BPPBR register to 0x20 or less.

–3. set LCDDMA_CTRL[TH_FIFO_READY] = 5h or 4h, and 

                LCDDMA_CTRL[BURST_SIZE] = 4  

–4. set RASTER_CTRL[PLM]= 2(data only) after LCD load palette.