Chapter 9: A Better Way to Display – VGA
Up until now, we've been limited to displaying information using LEDs, single color or RGB, as well as the 7-segment display. We are quite capable of performing operations and displaying limited information, as we have demonstrated with our temperature sensor and calculator. The Nexys A7 offers an additional output that can provide us with an almost unlimited method of displaying information, the Video Graphics Array (VGA) connector. The VGA connector on the Nexys A7 can display resolutions of up to 1600x1200, with up to 2^12 or 4,096 colors. What allows us to unlock this capability is that we now know how to use our external memory, which will provide our framebuffer.
By the end of this chapter, we'll ...
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