The implement of the program provides references to developing gui based on embedded linux and developing application software based on linux 該程序的實(shí)現(xiàn)為開發(fā)基于linux的嵌入式圖形界面系統(tǒng)的應(yīng)用軟件提供了一個(gè)借鑒,對(duì)于嵌入式linux環(huán)境下的應(yīng)用程序開發(fā)也有一定參考價(jià)值。
Then it studies the implementation, architecture and characteristic of embedded guis based on framebuffer, designs testing programs to test several embedded gui system's performances ( stability, efficiency ), and finally chooses qt / embedded as the development platform of the bsas . chapter 3 firstly briefly describes the embedded system hardware architecture, and then enumerates functions of system software 在分析了若干種基于幀緩沖(framebuffer)的嵌入式gui的實(shí)現(xiàn)、體系結(jié)構(gòu)和特點(diǎn)的基礎(chǔ)上,設(shè)計(jì)了測試程序?qū)Ρ人鼈冊(cè)诜€(wěn)定性、繪圖速率等方面的性能,最終選擇qtembedded作為嵌入式系統(tǒng)軟件開發(fā)平臺(tái)。
On the basis of analyzing these requirements, this paper presents that the capp system being used nowadays are insufficient in the charecteristics of distributing, reconstructuring and flexibility, then a solution, developing a new capp system on the basis of distributed component object model, is argued . and the paper also researches the key support technology, system constructure and corresponding implement methods for this system . simultaneously, combined with the application of capp system for suzhou medical instrument company, researches are made, with detailed examples, for the development courses and implementation techniques of three kinds of com-based components, gui based component, data processing based component and result exporting based component, as the application examples of different functions and differe nt implement technologies 本文在綜合分析這些要求的基礎(chǔ)上,指出目前的capp系統(tǒng)在分布性、重構(gòu)性和柔性方面的不足,從而提出了在分布式組件對(duì)象模型的技術(shù)基礎(chǔ)上構(gòu)架capp系統(tǒng)的解決方案,并進(jìn)一步研究了基于組件的分布式capp系統(tǒng)的關(guān)鍵技術(shù)、體系結(jié)構(gòu)和實(shí)現(xiàn)方法,同時(shí),結(jié)合企業(yè)capp系統(tǒng)的實(shí)施應(yīng)用情況,從不同的應(yīng)用類型和技術(shù)角度研究并開發(fā)了基于com(微軟的組件對(duì)象模型)標(biāo)準(zhǔn)的三類capp系統(tǒng)功能組件:圖形交互類、數(shù)據(jù)處理類和結(jié)果輸出類,并針對(duì)性的給出了具體的應(yīng)用實(shí)例來討論相關(guān)的開發(fā)細(xì)節(jié)工作,以此作為全面實(shí)現(xiàn)組件化capp系統(tǒng)的理論和技術(shù)指導(dǎo)。