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tvp5150am1图像不正常

Other Parts Discussed in Thread: TVP5150AM1

视频采集后如图所示,使用的是8bit 4:2:2  行、场外部信号,NTSC输入,只初始化了Addr: 0x03  Val:0x8f , Addr: 0x0d  Val:0x40 , Addr: 0x0f  Val:0x12;使用示波器量了HSYNC为15.63kHz, VSYNC为60Hz,  PCLK为27MHz.  请问这个TVP5150AM1没初始化好还是后端CPU没同步好?