研究基于V xWo rk s 嵌入式實(shí)時(shí)系統(tǒng)下M 總線控制系統(tǒng)的軟件設(shè)計(jì)思想和實(shí)現(xiàn)方法L 該系統(tǒng)需要設(shè)置兩個(gè)各自獨(dú)立運(yùn)行的實(shí)時(shí)任務(wù), 以達(dá)到對外部設(shè)備進(jìn)行控制的功能L 第1 個(gè)任務(wù)負(fù)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(jí); 第2 個(gè)任務(wù)負(fù)責(zé)解釋執(zhí)行, 并發(fā)送命令執(zhí)行后的響應(yīng), 兩個(gè)任務(wù)之間通過命令緩存鏈表進(jìn)行通信L 此設(shè)計(jì)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L
關(guān)鍵詞: M 總線; 現(xiàn)場總線; V xWo rk s; 傳感器
Abstract: P ropo ses a new sof tw are design ing idea and m ethod of imp lem en tat ion fo r M bu s con t ro l system based on V xWo rk s em bedded real2t im e system s. In o rder to realize the funct ion of con t ro lling the device, two real2t im e task s are set. The one gathers the comm and and the data co llected by sen so r, and set the p rio rity; the o ther run s the comm and and feeds back the resu lt to the device that needs the resu lt. They comm un icate by a comm and buffer link betw een them. The m ethod u sed in th is paper is simp le and h igh ly eff icien t and can be u sed in o ther k inds of con t ro l system s related w ith theM bu s system.
Key words: M bu s; f ield bu s; V xWo rk s; sen so r