I am trying to make a Composite Video Synch Pulse generator with the Help o f a micro Controller STM32 ,
Short story.
I have a wireless video source that is transmitted from a VTX So there is a PAL Camera that is connected to the VTX .
From the other side i have a VRX (receiver) that is connected to a monitor.
When the video signal goes bad , Synch Loss , tearing, rolling etc , in tha t moment , i want to generate a Synch Pulse signal and push it back into th e monitor , in order to stabilize the image...
What i have done so far.
-I can generate PAL or NTSC signal pulses from my Micro Controller.
-I can get the Horizontal and VErtical synch pulses with the LM1881 from my video source.
i tried programmatically to monitor the timing for the Hsynch and Vsynch fr om the LM1881 while the video was Crystal clear, and right after that i tri ed to push back the "cloned" synch pulses with my micro controller , but i t doesnt seem to syncronise, because i cant see any deference in the image.
SO before i start digging more into the code , is there an IC that does thi s dirty job? (take a Composite video in and spit out a synched ,stable signal out?)