基于QuartusII 6.0 环境的vga驱动程序，所用芯片为EP1C6Q240C8,开发板时钟50M，显示模式800*600，72Hz，内容是在频幕显示几条直线。-Environment based on QuartusII 6.0 vga drivers, the chips for the EP1C6Q240C8, development board clock 50M, the display mode 800* 600,72 Hz, the frequency content of