基于NiosⅡ的VGA彩条信号显示的实现

The Method to Generate VGA-Timing Color Strip Signals by Nios Ⅱ

VGA作为一种标准的显示接口得到广泛的应用。依据VGA显示的原理,提出了一种基于NiosⅡ处理器的VGA时序彩条信号显示的实现方法。利用FPGA产生VGA时序信号,NiosⅡ处理器控制输出彩条的颜色,按键控制彩条的输出模式,将要显示信号的数据直接送到显示器,这样就加快了数据处理速度,节约了硬件成本。

As a standard display interface, VGA has been widely used. According to the principle of VGA display, this paper proposes a method of display of VGA - timing color strip signals based on Nios Ⅱ processor. VGA - timing signals are obtained by using FPGA, Nios Ⅱ processor controls the color of the color strip, the key controls the mode of the color strip, the data is directly send onto the screen for display,which quickens the speed of data process and saves the expense of the hardware,