基于FPGA的VGA时序彩条信号实现

Implement of VGA-Timing Color Strip Signal Based on FPGA

视频图形阵列(VGA)作为一种标准的显示接口已得到广泛应用。依据VGA的显示原理,"抛弃"VGA的显示专用芯片,采用现场可编程门阵列(FPGA)产生VGA时序信号和彩条图像信号,并在Altera公司的QuartusⅡ软件环境下完成VGA时序彩条信号模块的仿真,最后下载到FPGA开发板中进行硬件验证,并在CRT显示器上得到正确的条纹图像。利用该原理,可以设计更多的彩色图像,且可以对采集图像进行实时显示。

As a standard display interface,VGA has been widely used. According to the principle of VGA display, to discard the chip for VGA display and use FPGA to produce VGA- timing signal and color strip image,the simulation of VGA- timing signal and color strip image module based on QuartuslI software environment are completed. At last, the module is downloaded into the FPGA to validate and display the correct stripe images on the CRT. Using this principle,many color images can be designed and the grabbing image is displayed in real - time.