tvp7002出现行同步错误

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

你好，

   我换了台电脑给tvp7002获取输出，屏幕可以显示满屏，分辨率都是1080p，都有根据“8637.tvp7002_THS8200_VGA_YPbPr_settings”配置，对比了寄存器如下图：

但是这俩台电脑都能正常满屏显示在 显示屏上，但经过tvp7002输出就是出现不满屏的现象（debug_tvp7002ok是能正常满屏，debug_tvp7002no是不满屏），对于了俩电脑显卡可以满屏的是HD Graphics 4400 ，不能满屏的是HD Graphics，已经有多台电脑出现不满屏现象， 不清楚这是tvp7002什么配置造成的，可以帮我解答下么？

我已找到原因是我根据tvp7002_VGA to YCbCr 422 es 文档里面配置的是HV 和SV都是P极性，我用1440x900有俩种配置，我试下情况真的一样的，我查看了1920x1080是没有这个HV为N极性，SV为P极性的配置，是不是说明tvp7002是不支持这种格式的视频源做输入？如果支持要如何去配置？

你好，我也遇到这种问题了，请问你最终是如何解决的？

你好，我也遇到这种情况，请问你当时是如何解决的？求教，谢谢

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。