TVP5150AM1 BT656 图像上下抖动

读出的寄存器的值如下：

tvp5150: Video input source selection #1 = 0x00

tvp5150: Analog channel controls = 0x15

tvp5150: Operation mode controls = 0x70

tvp5150: Miscellaneous controls = 0x3d

tvp5150: Autoswitch mask= 0xdc

tvp5150: Color killer threshold control = 0x10

tvp5150: Luminance processing controls #1 #2 and #3 = 60 00 00

tvp5150: Brightness control = 0x80

tvp5150: Color saturation control = 0x80

tvp5150: Hue control = 0x00

tvp5150: Contrast control = 0x80

tvp5150: Outputs and data rates select = 0x47

tvp5150: Configuration shared pins = 0x1a

tvp5150: Active video cropping start = 0x0000

tvp5150: Active video cropping stop = 0x0000

tvp5150: Genlock/RTC = 0x01

tvp5150: Horizontal sync start = 0x80

tvp5150: Vertical blanking start = 0x00

tvp5150: Vertical blanking stop = 0x00

tvp5150: Chrominance processing control #1 and #2 = 0c 54

tvp5150: Interrupt reset register B = 0x00

tvp5150: Interrupt enable register B = 0x00

tvp5150: Interrupt configuration register B = 0x00

tvp5150: Video standard = 0x04

tvp5150: Chroma gain factor: Cb=0x97 Cr=0x6b

tvp5150: Macrovision on counter = 0x0f

tvp5150: Macrovision off counter = 0x01

tvp5150: ITU-R BT.656.4 timing(TVP5150AM1 only)
tvp5150: Device ID = 5150

tvp5150: ROM version = (hex) 04.00

tvp5150: Vertical line count = 0x0271

tvp5150: Interrupt status register B = 0xdf

tvp5150: Interrupt active register B = 0x00

tvp5150: Status regs #1 to #5 = fe 08 25 45 83

tvp5150: Teletext filter enable = 0x00

tvp5150: Interrupt status register A = 0xc0

tvp5150: Interrupt enable register A = 0x40

tvp5150: Interrupt configuration = 0x06

tvp5150: VDP status register = 0x40

tvp5150: FIFO word count = 0x00

tvp5150: FIFO interrupt threshold = 0x80

tvp5150: FIFO reset = 0x00

tvp5150: Line number interrupt = 0x00

tvp5150: Pixel alignment register = 0x004e

tvp5150: FIFO output control = 0x01

tvp5150: Full field enable = 0x00

tvp5150: Line mode registers = 0x00

tvp5150: Full field mode register = 0x7f

tvp5150: 656 Revision Select Register = 0x00

先看看除了上下抖动, 有没有左右的抖动和错位等问题?

没有左右抖动和错位，用的信号源，字体是循环显示的，颜色是不变的情况下，字体上下抖动

已经解决 和后端设置有关

请问你的问题最后出在哪里了？我也遇到类似问题，着急中，谢谢！

这个芯片设置没有问题，问题出现在后端的配置上，不知道您后端是什么芯片，我后端是格式转换芯片，若想交流可加QQ472507028

抖动通常是因为信号非标产生的lock失败问题。建议先看vertical lock和，lock lost 和video standards等寄存器位是否正常