Tile Data - VGA from Scratch - Part 13

In this video I build one of the remaining modules for the vga. Tile data let’s us increase the effective resolution from 80x60 to 640x480 at the cost of a little flexibility. This build was not without it’s problems, I ran into a few issues mostly surrounding the difficulties of making a stable 25mhz circuit on a breadboard.

0:00 Introduction 0:48 Discussion 6:51 Build Explore and Check 12:01 Empty Breadboards 15:48 Wiring the ram chip 20:16 Tile Index Timing 21:55 Read address Inputs 26:20 Output Multiplexer 30:10 Write address Inputs 34:22 Stand Alone Testing 38:32 Integration 39:37 Adding an Output Latch 40:59 Turn it on! 45:35 Swap the Latches 46:05 Text Mode 49:18 Nibble Address Error 50:40 Demo: Fibonacci 51:27 Demo: Vga Terminal and Logo 52:25 Demo: Maze 53:48 Demo: Graphical Tile set 54:26 Demo: Monitor extensions for tiledata 55:15 Demo: Kodak Parrots 57:39 Extra Decoupling 58:32 Demo: Parallax Maze 59:42 Outro

Fixing the last Palette glitches - https://youtu.be/auarSG2MzdA ... https://www.youtube.com/watch?v=92XTJ_Oclog