Pitbuell94
Newbie level 6
- Joined
- Mar 19, 2010
- Messages
- 13
- Helped
- 1
- Reputation
- 2
- Reaction score
- 0
- Trophy points
- 1,281
- Location
- France, fresnes
- Activity points
- 1,413
Hi Dear Gentlemen,
I start long time ago this thread
https://www.edaboard.com/threads/173080/.
Now, I've sold this old thread and I've started a new project.
Because I repair some old TV in B&W from 1940 to 1970 with vaccum tube, I needed to build a video scaler from Color PAL 625 line to B&W 819 line French Standart.
It was the HDTV from the stone age.
My design use a NEXYS2 500K from Digilent.
The system works fine=> see photos.
The system take the video from 625 PAL.
Then, with an TDA8708, I have a 8bit video signal sampled at 25Mhz.
I store these valus in 2 FIFO and then I creat the missing lines.
I add the good synchro signal to have a good 819 B&W French HD standart.
But, I have an other problem.
In fact, I can't see the real good quality of these old B&w screen because the original picture comes from 625 lines.
What I need is to put a real picture of 1024 dots per 737 line in the flasch of the NEXYS2.
I have a little soft who do an HEX file with any JPEG or bmp picture.
In fact, I can only put small picture on the ROM of the SPARTAN 3E => 128 * 64 :-(
I'm looking for a solution to put this HEX file into the flash of the NEXYS2.
Did someone have an idea?
Thank you very much for your help.
Pitbuell94.
I start long time ago this thread
https://www.edaboard.com/threads/173080/.
Now, I've sold this old thread and I've started a new project.
Because I repair some old TV in B&W from 1940 to 1970 with vaccum tube, I needed to build a video scaler from Color PAL 625 line to B&W 819 line French Standart.
It was the HDTV from the stone age.
My design use a NEXYS2 500K from Digilent.
The system works fine=> see photos.
The system take the video from 625 PAL.
Then, with an TDA8708, I have a 8bit video signal sampled at 25Mhz.
I store these valus in 2 FIFO and then I creat the missing lines.
I add the good synchro signal to have a good 819 B&W French HD standart.
But, I have an other problem.
In fact, I can't see the real good quality of these old B&w screen because the original picture comes from 625 lines.
What I need is to put a real picture of 1024 dots per 737 line in the flasch of the NEXYS2.
I have a little soft who do an HEX file with any JPEG or bmp picture.
In fact, I can only put small picture on the ROM of the SPARTAN 3E => 128 * 64 :-(
I'm looking for a solution to put this HEX file into the flash of the NEXYS2.
Did someone have an idea?
Thank you very much for your help.
Pitbuell94.
Last edited: