3516A+7441A HDMI输入，bt1120采集不到视频

i2c_write  0x42  0x0F  0x80  #reset
sleep 1
i2c_write  0x42  0x03  0x09  #Disable TOD
i2c_write  0x42  0x05  0x06  #Prim_Mode =0110b HDMI
i2c_write  0x42  0x1D  0x40  #use 28.636MHz
i2c_write  0x42  0x47  0x0a  #VCO,PLL charge pump current automatically calculated //
i2c_write  0x42  0x68  0xF0  #YPrPb output  
i2c_write  0x42  0x6B  0xE3  #Setting cp_op_sel = 2 & Enable DE f0  c1
i2c_write  0x42  0xBA  0xA0  # Enable HDMI and Analog in  A0
i2c_write  0x42  0xC8  0x08  # Digital Fine Clamp Start position
i2c_write  0x42  0x7B  0x0F  # Disable AV code Insertion
i2c_write  0x42  0xF4  0x3F  #Max Drive Strength
i2c_write  0x62  0xF0  0x10  # ADI Recommended Write
i2c_write  0x62  0xF1  0x0F  # ADI Recommended Write
i2c_write  0x62  0xF4  0x20  # ADI Recommended Write
i2c_write  0x6A  0x15  0xEC  # Disable these mute mask bits
i2c_write  0x6A  0x1C  0x49  # Set MCLKOUT to output 256fs
i2c_write  0x6A  0x1D  0x04  # Set Unmute Delay to 1_5 sec
i2c_write  0x6A  0x5A  0x01  # Reset Audio Pll