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TMS320C6748 LCD显示问题



各位好!

我使用C6748的LCD控制接口驱动LCD,LCD分辨率为480*272,用RGB565。有几个问题不太明白:

1、g_ptLcdcReg->LCDDMA_FB0_CEILING  = FRAMEBUF_BASE+32+480*272*2-2;  这里为什么还要加32?

2、对于LCD的分辨率为480*272,能否设置成其它的分辨率?