DVB-ASI信号接收与发送系统的研究

研究一种DVB-ASI信号接收和发送系统的组成原理和实现方法。以Cypress公司的CY7B923和CY7B933作为ASI信号接口,通过FPGA和SDRAM,实现了ASI接口和PLX公司的PCI9056的连接;再通过主机上的应用程序,实现了DVB-ASI信号的收发。

披沙拣金识内存

内存降价在前段时间无疑是人们关注的焦点，不少人DIYER都乘机为自己的机器扩展了内存以求提高机器的性能。能逢低买进确实不借，但在这里要告诫大家一句，你在购买内存时千万要小心，别让人以次充好，以假乱真将你骗了。下面就将都你如何从模块和芯片编号来识别Geil（金邦）内存的真假。

Analysis and Implementation of Traffic Buffering in EOS Chip Design

The traffic buffering problems in the ethernet over synchronous digital hierarchy(EOS) are introduced and analyzed. Different solutions are also presented in detail. Synchronous DRAM(SDRAM) is used as off-chip buffer to store-and-retransmission ethernet frames. A new and easy control design is introduced here. The buffer area size on chip is greatly reduced and the power dissipation is lowed at the same time.