vga控制电路原码。主要有时序产生模块，彩条产生模块和接口模块。改程序主要用状态机来实现，两个计数器来控制状态的翻转。-vga control circuit original code. Sequencers have a major modules of exotic produce modules and interface modules. Procedures in the main state machine to achieve, two counter to the state