tvp5150输入CVBS CCD摄像头信号的抖动问题,是否奇偶场引起,请教如何解决
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你好,
你可以先确定一下是5150端的采集就抖,还是后面CPU采集设置不对造成的抖。
具体的寄存器可以看 lines per frame, pixels per line.的值是不是在跳变
还有就是看 Vertical sync lock status Horizontal sync lock status 是否锁定住
好,
我监测了lines pre frame寄存器(0x84,0x85)一直是625,没有跳变,pixels per line不知道是哪个寄存器
监测了0x88-0x8c寄存器,分别为0x6e 0x28 0x00 0xc1 0x83,
PAL switch polarity 、Field sequence status、Peak white detect status、Subcarrier to horizontal (SCH) phase有跳动
Vertical sync lock status、Horizontal sync lock status一直被锁定