[bartbs]

Finaly got native from the iscan hd to pio503mxe plasma (dvi in)

Looks real nice! Only have one more problem/question:


I did some tweaking on the front and back porch function. What exactly does this do/effect? (in not to technical terms)


When there is a static/still picture on the screen , for instance a logo of a tv

station in the corner of the screen, i see it move very fast up and down. maybe 3 pixels. Is this because of my tweaking? or is this another problem?

Without the iscan i don't have this effect.


Bart

 

[bartbs]

found the solution of the moving pixels. It was a cable interference.

Bart

 

[Dale Adams]

The porches are the periods during blanking when sync is not asserted. Front porch comes before the sync pulse, so it is the period between the end of active video (last pixel in a line for horizontal front porch, last line in the frame for vertical front porch) and the start of the sync pulse. Back porch comes after the sync pulse, so it is the period between the end of the sync pulse and the start of active video (first pixel in a line for horizontal back porch, first line in the frame for vertical back porch). Together with the sync pulse, the porches comprise the blanking period - i.e., the portion of the video signal during which there is no visible image information.


- Dale Adams

 

[bartbs]

Thanks Dale.


Bart