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你好,ti的工程师:
我配置tvp7002为1920x1080 60分辨率,可显示到电视上没有满屏,感觉是行缩放了,调了几天 ,没点思路,希望能得到协助
下面是我配置寄存器:
read tvp7002 parameter
I2C (0x5d): 0x01 = 0x89
I2C (0x5d): 0x02 = 0x80
I2C (0x5d): 0x03 = 0xe0
I2C (0x5d): 0x04 = 0x00
I2C (0x5d): 0x05 = 0x06
I2C (0x5d): 0x06 = 0x10
I2C (0x5d): 0x07 = 0x2c
I2C (0x5d): 0x0e = 0x36
I2C (0x5d): 0x0f = 0x2e
I2C (0x5d): 0x10 = 0x58
I2C (0x5d): 0x11 = 0x40
I2C (0x5d): 0x12 = 0x01
I2C (0x5d): 0x13 = 0x00
I2C (0x5d): 0x14 = 0x95 //这个我觉得有异常,hs 和vs的同步脉冲极性相反,而且检测不到SOG activity,是否要改下同步方式
I2C (0x5d): 0x15 = 0x43
I2C (0x5d): 0x16 = 0x11
I2C (0x5d): 0x18 = 0x11
I2C (0x5d): 0x17 = 0x02
I2C (0x5d): 0x19 = 0x00
I2C (0x5d): 0x1a = 0xca
I2C (0x5d): 0x1b = 0x77
I2C (0x5d): 0x1c = 0x07
I2C (0x5d): 0x1d = 0x00
I2C (0x5d): 0x1e = 0x10
I2C (0x5d): 0x1f = 0x10
I2C (0x5d): 0x20 = 0x10
I2C (0x5d): 0x21 = 0x22
I2C (0x5d): 0x22 = 0x00
I2C (0x5d): 0x23 = 0x37
I2C (0x5d): 0x24 = 0x31
I2C (0x5d): 0x25 = 0x14
I2C (0x5d): 0x26 = 0x80
I2C (0x5d): 0x27 = 0x2a
I2C (0x5d): 0x28 = 0x53
I2C (0x5d): 0x2a = 0x87
I2C (0x5d): 0x2b = 0x00
I2C (0x5d): 0x2c = 0x80
I2C (0x5d): 0x2d = 0x00
I2C (0x5d): 0x2e = 0x80
I2C (0x5d): 0x2f = 0x8c
I2C (0x5d): 0x31 = 0x18
I2C (0x5d): 0x35 = 0x00
I2C (0x5d): 0x36 = 0x00
I2C (0x5d): 0x37 = 0x5e
I2C (0x5d): 0x38 = 0x24
I2C (0x5d): 0x39 = 0x61
I2C (0x5d): 0x3a = 0x00
I2C (0x5d): 0x3b = 0x07
I2C (0x5d): 0x3c = 0x03
I2C (0x5d): 0x3d = 0x06
I2C (0x5d): 0x3f = 0x00
I2C (0x5d): 0x40 = 0xda
I2C (0x5d): 0x41 = 0x00
I2C (0x5d): 0x42 = 0x5e
I2C (0x5d): 0x43 = 0x08
I2C (0x5d): 0x44 = 0x04
I2C (0x5d): 0x45 = 0x04
I2C (0x5d): 0x46 = 0x2d
I2C (0x5d): 0x47 = 0x2d
I2C (0x5d): 0x48 = 0x00
I2C (0x5d): 0x49 = 0x00
这个问题已经解决,对于正反极性的vga信息,可以采用提高像数时钟的方式满屏的。
0x01--0x02 拉宽像数点; 要配合0x42--0x43 实现的,可以根据1440x900那个参数做参考。