How to display a picture on a TV without interface?

[brmadhukar]

PICTURE ON TV

Hi,
I want to display a picture (stored as image file on flash/eeprom) on the TV. I do not want to interface a PC to the TV. Has anyone worked on such a project using microcontrollers/ or can provide me any specific ICs that do this function.
BRMadhukar

 

[Al Farouk]

Re: PICTURE ON TV

TV vedio processor has pin called Fast Blanking pin and 3 pins for RGB. the TV microcontrol when need to display text (menus or Teletext) it force fast blanking pin and insert the RGB signal assoctiated to what he need to display on screen.
When the Vedio provessor detect the fast Blanking signal it float its RGB (normal TV signal) and switch to the RGB supplied by microcontroller so the characcter or image supplied by ycontroller diplsyed to screen.
you can relay on this feature to display your image to screen but the reading from the storage element should be syncronozed with the Vertical and horizontal sync signals ov the TV so the image displayed in the correct position and dont roll or jitter.

you can search the net for "On Screen Display" you will find good information.

 

[ME]

PICTURE ON TV

SimpleTech Introduces PhotoZen USB Reader and TV Photo Image Viewer:

www.dcviews.com/press/SimpleTech_PhotoZen.htm

www.corporate-ir.net/ireye/ir_site.zhtml?ticker=STEC&script=412&layout=0&item_id=387575

 

[brmadhukar]

Re: PICTURE ON TV

Hi,
Are there any specific ICs for this purpose.
BRMadhukar

 

[C-Man]

Re: PICTURE ON TV

Hi,
I want to display a picture (stored as image file on flash/eeprom) on the TV. I do not want to interface a PC to the TV. Has anyone worked on such a project using microcontrollers/ or can provide me any specific ICs that do this function.
BRMadhukar

Maybe you can get some ideas looking here:
**broken link removed**
http://elm-chan.org/docs/avr/avrdma_e.html

best regards

 

[ME]

PICTURE ON TV

Try these links as well:

https://instruct1.cit.cornell.edu/courses/ee476/video

www.rickard.gunee.com/projects

www.devrs.com/pic/apps.php#appvideo

www.decadenet.com/links/links.html#Video

www.williamson-labs.com/480_tv.htm