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tvp7002 sync detect status有误差

Other Parts Discussed in Thread: THS8200, TVP7002

        我在使用TVP7002做VGA接口图像采集,根据tvp7002_THS8200_VGA_YPbPr_settings.xls 配置成VGA 5线模式

        使用外部27M时钟,然后用笔记本VGA输出1080P,

         读取Sync Detect Status值为 0x97,但问题是line per frame 读出来为403, clocks per line 读出来为1118

         根数据手册上的1125和400有误差,请问是哪出了问题?

         随便说一句,在此基础上配成1080P bt1120输出,采集到的画面宽度明显不对,图像完整但都挤在中间,前面至少有400-500的黑边,

        不知道是哪出了问题?