externSA7121H_ConfParamssa7121hPAL[45];externSA7121H_ConfParamssa7121hNTSC[45];Uint8vFromat=0;Uint8misc_ctrl=0x6D;Uint8output_format=0x47;//地址为0forcvbsport1,选择复合信号做为输入Uint8input_sel=0x00;/*地址为0xf，将Pin27设置成为CAPEN功能*/Uint8pin_cfg=0x02;/*地址为1B*/Uint8chro_ctrl_2=0x14;