Removed the black bar, amiga VSC is starting to work much better

Here’s a screen shot of the amiga vsc in action.  As you can see, there’s been much improvement from the last session.

Even though I am now passing the amiga’s VSYNC through the FPGA to the monitor, I wasn’t resetting my Y coordinate in my hvsync generator module. What this meant was that the module thought it was blanking when it wasn’t — spitting out a scrolling black bar.  On receipt of a VSYNC from the amiga, I now adjust the Y coordinate appropriately. (set it to 435, for what it’s worth)

 

 

About the author

keith

Amateur Electronics Design Engineer and Hacker