研究基于VxWorks嵌入式實時系統(tǒng)下M 總線控制系統(tǒng)的軟件設(shè)計思想和實現(xiàn)方法．該系統(tǒng)需要設(shè)置兩個各自獨立運行的實時任務(wù)． 達到對外部設(shè)備進行控制的功能．第1個任務(wù)負責(zé)收集命令和通過傳感器采集到的數(shù)據(jù)，并設(shè)定命令優(yōu)先級；第2個任務(wù)負責(zé)解釋執(zhí)行，并發(fā)送命令執(zhí)行后的啊應(yīng)，兩個任務(wù)之間通過命令緩存鏈表進行鍾信．此設(shè)計思想簡單、高效，可以被廣泛應(yīng)用在與M 總線相關(guān)的其他控制系統(tǒng)中．

Proposes a new"software designing idea and method of implementation for M bus
control system based on VxW orks embedded real—time systems．In oIdeI to realize the function of controlling the device，two real—time tasks are set．The one gathers the command and the data collected by sensor，and set the priority：the other runs the command and feeds back the result to the device that needs the result．They communicate by a command buffer link between them．The method used in this paper is simple and highly efficient and can be used in other kinds of control systems related with the M bus system ．