The core of setting up the distributed computation environment is the data transfer bus . the requests are sent to the server though the bus . and the server sent the results of computation back to the end of client though the same bus 建立基于corba的分布式計(jì)算環(huán)境的核心是系統(tǒng)的軟件總線,客戶通過軟件總線向服務(wù)器發(fā)出請求,服務(wù)器通過軟件總線將計(jì)算結(jié)果返回到客戶端。
During the design of vxi - bus serial controller module , the functions of vxi - bus including time - sequence for vxi interface , resource management , interrupt process , bus arbitration , are accomplished . to advance the performance and stability , the fpga technic is used to implement the kerneled code including serial bus time - sequence switching to vxi interface time - sequence , the uart , the parameterized baud generator and “ pipeling frame ” . the handle type of data transfer bus for vxi - bus is researched thoroughly , and the format of serial data transfer is designed 在vxi總線串行控制器設(shè)計(jì)中,實(shí)現(xiàn)了vxi總線控制器的基本功能,包括vxi總線接口時(shí)序、總線仲裁、超時(shí)處理等;同時(shí)利用先進(jìn)的fpga技術(shù)實(shí)現(xiàn)了串行總線時(shí)序向vxi總線時(shí)序的轉(zhuǎn)換、通用異步收發(fā)器( uart ) 、參數(shù)化波特率發(fā)生器、流水線結(jié)構(gòu)等功能模塊;在設(shè)計(jì)中還深入研究了vxi總線數(shù)據(jù)傳輸?shù)母鞣N操作類型,制定了串行數(shù)據(jù)傳輸?shù)木幋a格式。