模拟图像字符叠加控制的实现

The Accomplishment of the Character Superimposition on the Analog Image

根据模拟图像显示原理 ,描述了利用CPLD实现字符叠加控制的技术 ,提出了实现CRT字符叠加控制的工程解决方案 ,即单片机与CPLD控制实现 ,并给出了CPLD读

According to the theory of analog image display, the paper describes a method that can accomplish the character superimposition with CPLD (Complicate Programmed Logic Device), namely, CRTC could be accomplished by the circuit system compounded with MCU and CPLD. By the way it provides a timing analyses of the controller.