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Altera_Forum's avatar
Altera_Forum
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14 years ago

TRDB-D5M Camera Example Distortion after no change compile

Hi Guys

I am using a D5M camera with a DE2-115. When I take the example from the D5m CD and straight program it to the board (as in no re-compile), the image is displayed correctly.

If I make absolutely no changes, but I compile the project before programming the sof file; the image then is displayed with green noise.

Please see the two attached pictures: Note these were taken with a phone looking at an LCD monitor displaying the output of the DE2-115.

The first is a more complete shot of the screen and the 2nd is a zoom in on what happens to the edges.

Has anyone had this problem?

Does anyone know how to compile the project without causing this issue?

4 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    14 years ago

    I emailed terasic support and the problem appears to be when using a updated version of quartus.

    The original project was created on Quartus 9.0 and i'm compiling with 10.1sp1.

    So in the end the solution is:

    --- Quote Start ---

    We have to create the clock for D5M_PIXLCLK manually for this demo, please open the DE2_115_D5M_VGA.sdc file and insert the command "create_clock -period 30.0 [get_ports D5M_PIXLCLK]" into Create Clock as shown

    --- Quote End ---

    See the screen shot.

    this fixed it for me, but they also said this:

    --- Quote Start ---

    You can adjust the D5M_PIXLCLK data until you get the correct output, D5M CCD Input clock frequency is about 25Mhz

    --- Quote End ---

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    11 years ago

    Can you please help me by pointing out any solutions for DE2 board? I tried the same you have provided for DE2- 115 and it did not work.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    10 years ago

    I using DE2 also getting the result of Distortion by quartus 13.0 sp1. How can i solve this problem?

    • GKara7's avatar
      GKara7
      Icon for New Contributor rankNew Contributor
      5 years ago

      I also get the distortion result with Altera DE2 by Quartus 13.0 sp1. How can I solve this problem?