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Recent content by Simon2

  1. S

    VGA input to FPGA to light LEDs

    I think it maybe has to do someting with the AD9980. However in the datasheets of the AD9980, I can't that there is somekind of setup necessary to activate it or to activate the default values of the registers of the adresses. I thought the default values mentioned in the datasheet were OK to...
  2. S

    FPGA virtex 5 to VGA to monitor some colors

    It still does not work :( See my other topic for the most recent code
  3. S

    VGA input to FPGA to light LEDs

    I think I don't have to setup the IIC bus, the default values of the AD9980 look fine to me. However about the timing diagrams of the AD9980, in 4:4:4 timing mode (see page 19 of the datasheet of the AD9980 : https://www.xilinx.com/products/boards/ml505/datasheets/464471350AD9980_0.pdf) there is...
  4. S

    FPGA virtex 5 to VGA to monitor some colors

    Thanks mate
  5. S

    VGA input to FPGA to light LEDs

    How does the FPGA know when the v_valid and h_valid need to be one? What signal would you use for that instead of a counter then? greetz, Simon - - - Updated - - - Hmm, damn. And it looked so easy ;)
  6. S

    VGA input to FPGA to light LEDs

    Hi everyone, I am quite a beginner in the FPGA-world, and I'm learning this as a hobby. And now I have the following problem. I have connected a VGA input (another PC) to my FPGA (virtex 5 ml507) and i'm trying to light some LEDs depending on the color of a pixel somewhere in the middle of a...
  7. S

    FPGA virtex 5 to VGA to monitor some colors

    Oh damn, forgot a comma. I was wondering, the first blanking signal of a horizontal line, does it appear totally in the beginning or do you have your first line of pixels first, then a blanking signal and then hsync? thanks in advance, Simon - - - Updated - - - Hi again, I have spend some...
  8. S

    FPGA virtex 5 to VGA to monitor some colors

    I guess ;) It's been a long day for me, sorry ;) My code is pretty useless now. I'm gonna have to focus on DVI, if that's not too difficult. VGA input to the FPGA does it use the same principles as sending output to VGA?
  9. S

    FPGA virtex 5 to VGA to monitor some colors

    Damn, I've been totally wrong. I have been putting input signals on the VGA output pins... On the virtex 5 ml507 there is only a DVI input. :-?
  10. S

    FPGA virtex 5 to VGA to monitor some colors

    rofl, I had no idea! ;-) Anyway, thanks for the datasheet, man I'll try to adapt the design and try it.
  11. S

    RS-232 between computer and virtex5 FPGA

    Thanks for the reply's guys, in the meantime I made it work already ;-) I'm sending data from hyperterminal to the FPGA with the rs-232 to light some LEDs, very basic, I know ;) If anyone would have the same problem I had, do contact me on simonvandenberge@hotmail.be I made the same code for a...
  12. S

    VGA colors with Spartan 3E

    Haha :D
  13. S

    FPGA virtex 5 to VGA to monitor some colors

    Lol, this is the more detailed post ;) There still is a problem though. If I use only the vsync and hsync and the 8 bits of each color as outputs of my fpga, the screen goes into sleeping mode and the colors don't appear. What could be the problem? Could it be one of those other (un-used) pins...
  14. S

    VGA colors with Spartan 3E

    Thanks for the fast reply, ;-) I just tried it, leaving the lower 7 bits of each color '0' and setting the highest bit of each color '1'. The only other pins I used were the horizontal synchronisation and vertical synchronisation. However the only thing that happens is the screen that goes in...
  15. S

    VGA colors with Spartan 3E

    Hi, I have a virtex 5 ml507 FPGA education platform and I'm having troubles because i have too much possible colors I think. I just want to try and make the 8 colors on a VGA Signal (640 x 480 @ 60 Hz) with one blue, one red and one green signal and the horizontal and vertical synchronisation...
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