摘要
介绍了基于SOPC技术的图像显示系统。存储在SRAM中的图像数据经过DMA通道高速传输到VGA控制器,然后由VGA控制器产生时序在VGA显示器上显示。整个系统由一片Altera公司的FPGA芯片EP1C20以及外围的存储器和接口电路构成。实验表明,采用SOPC技术构建的VGA显示系统体积小、功耗低、可靠性强。
An image display system based on SOPC technology is introduced here. The image data in SRAM are transmitted to VGA controller through DMA route. In sequence, VGA controller produces right scheduling to export the image onto display. The whole system is constituted by a piece of FPGA chip EP1C20 and a peripheral memory and interface circuits. It is indicated that the system based on SOPC has a small cubage, low power loss and high durability.
出处
《计算机与数字工程》
2007年第2期138-139,163,共3页
Computer & Digital Engineering
关键词
SOPC
NiosⅡ
VGA显示DMA传输
system on programmable chip(SOPC),Nios II,video graphics array display,direct memory access transmit
