IMG_20201004_232301~2.jpg

Extra circuit patched on to support 640x256 output resolution. On the left is a Pierce oscillator with a 27MHz crystal; in the middle is a flip flop used to control the address counter timing; and on the right is a 4-bit adder that adds the $3000 base offset to the video address

JPEG Image - 2.66 MB - 10/04/2020 at 22:35

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IMG_20201004_231706~2.jpg

640x256 test image, on a little 7" monitor

JPEG Image - 3.74 MB - 10/04/2020 at 22:35

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compvideo6502_schematic.pdf

PDF containing full schematics - please see github for KiCad sources

Adobe Portable Document Format - 628.78 kB - 09/17/2020 at 19:14

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