I have read a lot from both , vga and components video, the deference is timing, since one has 64 micro second, and the other has 21.5 micro second, with my arduino uno analogRead has to read change the timing and analogWrite it for perfection, Thanks
Where's the question ?
The difference between VGA and component is very different from timing.
So your assumption is incorrect.
What do you want to do by analogReading using your Uno ?
Do you really think you can improve a VGA signal to become a (potential HD) component signal, using an Uno ?
Thank you , am not improving the vga, but I really want convert the VGA output to Video Component, since the vga trevels 21.5 micro
second on the RGB, and the video components also trevels 64 micro second on the RGB, so I really want to covert RGB to RGB and
it's sync pulse to 64 micro second .
VGA is component video.
Are you confusing it with composite?
A standard analogRead takes longer than either a CCIR or RS170 video line.
Thank you for your help, yes vga is video components, but here am much focused on periodic, line scan period of 21.5 micro second, changing to line scan period of 64 micro second, as well as their sync pulse, not composite PAL / NTSC same component,
There is no way you can convert video formats on an arduino, full stop.
If you think this is possible then you do not know enough about video formats.
O ok not really changing video format, but the scanning rate or line frequency, So my problem is more like, how to use the arduino
to change frequency, about 45khz to 15khz
45kHz to 15kHz is a divide by three, but that doesn't even approach solving your problem.
Try an FPGA.
ulobab:
O ok not really changing video format, but the scanning rate or line frequency, So my problem is more like, how to use the arduino
to change frequency, about 45khz to 15khz
Sorry but I don't understand what you mean by change the frequency. How is that different from generate a frequency and ignore the fast one. Or just divide by three with a two stage binary counter.
Try again and say what you hope to acheave.
Thanks, what is FPGA
ulobab:
Thanks, what is FPGA
Field Programmable Logic Array.
It will take you a good three years to learn how to use one of those.
Let's start with the entry level Arduino offers.
Just one of the very important lesson you will learn during your Arduino discoveries:
There are limits to what you can do using this hardware.
RGB - VIDEO(PAL B/NTSC M?NTSC 3.58?/NTSC N?NTSC 4.43?/PAL D/PAL G/PAL H/PAL I/PAL K) Converter
We can get?it only $20 in Japan.
Color TV signal encoder
Analog RGB signal is converted into video signals.