hello everyone, this is my first post on here so i am sorry if any of it is wrong in any way. I have been looking at this forum for a while and it has helped me a lot but now i need to join up to see if anyone can help me out.
what i am trying to do is take a portable unit (gameboy) and take the data that is normally sent to the LCD screen and convert it to a composite signal.
i have details of the LCD pin outs here:
https://www.devrs.com/gb/files/gameboy2.gif
and details about the rest of the unit here:
https://www.devrs.com/gb/files/gameboy1.gif
now i understand that this is not simple, i realise that the data has to be stored and converted before it can be displayed on a TV and i also realise that it has to be multiplied to fit the screen.
but i am very new to all of this, this is already out of my depth but i still want to have a go at making it, i am not asking anyone to spoon feed me the information, but i really have no idea where to start.
i need to work out first is:
how do i translate the data from the LCD, or rather how can i work out what kind of signal is being sent?
how do i gererate a composite signal?
what is needed to store, convert and multiply the signal?
i dont even know what to search for in Google, "generating a composite signal" comes up with a lot of test and AV stuff that is not in the direction i am trying to go and there is almost nothing on translating an LCD signal.
there is equipment that already exists which does exactly this job, but it is rare and expensive and also bulky (it does more than just convert the signal) because it is rare it is impossible to find any information about it so that is a dead end.
but i assume that one thing that might make it a bit easier is that i am only working with a black and white image.
anyway, any pointers would be a great help
thanks everyone
what i am trying to do is take a portable unit (gameboy) and take the data that is normally sent to the LCD screen and convert it to a composite signal.
i have details of the LCD pin outs here:
https://www.devrs.com/gb/files/gameboy2.gif
and details about the rest of the unit here:
https://www.devrs.com/gb/files/gameboy1.gif
now i understand that this is not simple, i realise that the data has to be stored and converted before it can be displayed on a TV and i also realise that it has to be multiplied to fit the screen.
but i am very new to all of this, this is already out of my depth but i still want to have a go at making it, i am not asking anyone to spoon feed me the information, but i really have no idea where to start.
i need to work out first is:
how do i translate the data from the LCD, or rather how can i work out what kind of signal is being sent?
how do i gererate a composite signal?
what is needed to store, convert and multiply the signal?
i dont even know what to search for in Google, "generating a composite signal" comes up with a lot of test and AV stuff that is not in the direction i am trying to go and there is almost nothing on translating an LCD signal.
there is equipment that already exists which does exactly this job, but it is rare and expensive and also bulky (it does more than just convert the signal) because it is rare it is impossible to find any information about it so that is a dead end.
but i assume that one thing that might make it a bit easier is that i am only working with a black and white image.
anyway, any pointers would be a great help
thanks everyone