Video Delay – Now in Colour.

You are viewing an old revision of this post, from October 27, 2013 @ 10:19:38. See below for differences between this version and the current revision.

Yesterday night we finally got the delay running as it should. Great picture, stable delay:

Notes

  • Pretty satisfied with picture quality
  • Inputs need protection diodes to GND + standard synkie module input protection
  • Level shifter seems to work nicely

With some more clever VHDL coding this could be easily turned into a video looper by making write_enable controllable. Or a synchronized frame freezer. Or a frame synchronizer…

More to come…

Module Info

Inputs:
Outputs:
Power Draw on +5V: N/A
Power Draw on -5V: N/A
Frequency Response:

Schematic & PCB

View on Github

Observations

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October 27, 2013 @ 10:19:38Current Revision
Content
Yesterday night we finally got the delay running as it should. Great picture, stable delay: Yesterday night we finally got the delay running as it should. Great picture, stable delay:
<iframe src="//player.vimeo.com/ video/77894754" width="500" height="375" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>  <iframe src="//player.vimeo.com/ video/77894754" height="375" width="500" allowfullscreen="" frameborder=" 0"></iframe>
<h3>Notes</h3> <h3>Notes</h3>
<ul> <ul>
<li>Pretty satisfied with picture quality</li>  <li>Pretty satisfied with picture quality</li>
<li>Inputs need protection diodes to GND + standard synkie module input protection</li>  <li>Inputs need protection diodes to GND + standard synkie module input protection</li>
<li>Level shifter seems to work nicely</li>  <li>Level shifter seems to work nicely</li>
  <li>delay time is fixed, hardcoded in vhdl right now. Will try to get the rotary encoder working today</li>
</ul> </ul>
With some more clever VHDL coding this could be easily turned into a video looper by making write_enable controllable. Or a synchronized frame freezer. Or a frame synchronizer… With some more clever VHDL coding this could be easily turned into a video looper by making write_enable controllable. Or a synchronized frame freezer. Or a frame synchronizer…
More to come… More to come…

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