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Altera_Forum's avatar
Altera_Forum
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19 years ago

Clock Issue For A Vga Controller

Hi, I'm trying to design an 640x480 VGA controller for which the simulation seems alright. However, when I program the CYCLONE || FPGA STARTER KIT, nothing appears on the screen. I suspec...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Also i am using 27Mhz for my VGA controller for 640x480 (@60Hz) video and it works. But i couldn't find the reason. How does it work ? all the timings are wrong when we use 27MHz instead of 25.17 MHz. Do you know how is it possible?