基于FPGA的彩色触摸屏控制器的设计

Design of colored touching screen controller based on FPGA

介绍了一种基于FPGA的彩色触摸屏控制器的设计方法,根据彩色液晶屏TFT-LCD与芯片ADS7843的接口方式,使用FPGA设计了TFT-LCD控制器和ADS7843芯片的控制器,并实现了在TFT-LCD上的触摸功能。该控制器显示效果好,触摸响应速度快,为后续彩色触摸屏的IP核设计打下了基础。

In this paper, a method of designing a colored touching screen controller with FPGA is presented. A TFT-LCD controller and an interface controller of ADS7843 chip are designed in FPGA according to interface rules. The touch-enabled func- tion on the TFT-LCD is realized in FPGA. This colored touching screen controller has a positive display effect and fast response speed. And it can be used for the design of IP core of colored touching screen.