一种基于RGB640的RAMDAC IP核设计

RAMDAC IP core design based on RGB640

由于目前显示系统越来越快,系统的集成度越来越高,对于使用FPGA作为主要处理器的显示系统,怎样将外围芯片集成到FPGA上就成了问题。针对该问题,通过分析研究外围芯片RGB640芯片实现数据转换的逻辑功能,采用IP核代替芯片完成该逻辑。IP核实现了多格式像素数据的归一化处理,即将所有的像素格式统一使用RGB格式输出。通过对各个模块进行了仿真分析,模块的算法能够很好的实现。

Display System is more and more fast at present,and its integration is higher.For the system that uses FPGA as the major processor,it＇s a problem how to integrate some peripheral chips on the FPGA.Aiming at this problem,the chip is replaced to realize the logic with IP Core through analyzing and studying the logic function that the chip achieves data conversion.IP Core realizes the uniformization of multiple pixel formats.It means that all of the pixel formats are exported with RGB format.The arithmetic in every module is perfect through simulation and analysis.