摘要:現(xiàn)場(chǎng)總線已成為數(shù)據(jù)總線領(lǐng)域中最為活躍的熱點(diǎn),CAN 總線被公認(rèn)為最有前途的現(xiàn)場(chǎng)總線之一,CAN 總線節(jié)點(diǎn)的設(shè)計(jì)、調(diào)試是CAN 總線通訊系統(tǒng)設(shè)計(jì)的重點(diǎn)。在此介紹了C8051F040單片機(jī)內(nèi)部集成的CAN 控制器,并基于C8051F040單片機(jī)設(shè)計(jì)了一個(gè)CAN通信節(jié)點(diǎn),并給出了CAN 節(jié)點(diǎn)測(cè)試模式軟件設(shè)計(jì)程序,可以用于CAN 總線模塊的測(cè)試,節(jié)省測(cè)試時(shí)間。
標(biāo)簽: C8051F040 CAN 單片機(jī) 總線
上傳時(shí)間: 2013-11-12
上傳用戶:蠢蠢66
can總線程序 can總線程序
上傳時(shí)間: 2013-10-26
上傳用戶:dengzb84
CAN總線協(xié)議解析 CAN總線協(xié)議解析
上傳時(shí)間: 2013-10-08
上傳用戶:wweqas
新唐科技(原華邦電子邏輯事業(yè)群),自2010年成功推出ARM® Cortex™-M0為內(nèi)核的32位單片機(jī) - NuMicro™ 家族后,持續(xù)專注于新一代微控制器系列產(chǎn)品的開發(fā)。同時(shí),32位單片機(jī)的發(fā)展前景備受各方矚目,在工業(yè)控制、消費(fèi)電子、汽車電子、高速計(jì)算與通訊控制等應(yīng)用領(lǐng)域的推波助瀾下,32位單片機(jī)的成本和性價(jià)比展現(xiàn)令人期待的成長(zhǎng)爆發(fā)力。2012年新唐再度大展身手,開發(fā)出多款新系列32位帶有 CAN BUS 設(shè)備的低功耗NUC130與NUC140系列單片機(jī)。
上傳時(shí)間: 2013-10-17
上傳用戶:
can入門 希望幫助你們
標(biāo)簽: CAN
上傳時(shí)間: 2013-10-14
上傳用戶:Alick
以太網(wǎng)和CAN總線應(yīng)用廣泛,但由于其通信協(xié)議不同,兩種總線器件間無(wú)法進(jìn)行數(shù)據(jù)通信,因此,設(shè)計(jì)了基于CP2200與C8051F040的以太網(wǎng)總線與CAN總線接口轉(zhuǎn)換電路,并給出部分相關(guān)硬件電路與軟件設(shè)計(jì)分析。在保證數(shù)據(jù)完整和協(xié)議可靠的前提下,通過(guò)握手協(xié)議和簡(jiǎn)化的以太網(wǎng)協(xié)議,不僅實(shí)現(xiàn)了以太網(wǎng)數(shù)據(jù)與CAN數(shù)據(jù)的轉(zhuǎn)發(fā),同時(shí)還順利的解決了以太網(wǎng)的高速性與CAN的低速率沖突,以及兩者數(shù)據(jù)包之間的大小不同的矛盾。 Abstract: In the development of actual application, Ethernet and CAN bus are used very extensively. Owing to its various communication protocols, the communicating between two kinds of bus device can’t be carried out. Therefore, in order to solve this problem, the Ethernet-CAN bus interface circuit based on CP2200 and C8051F040 was designed in this paper, and part of the related hardware circuit and software design analysis were given. On the condition of data’s integrity and protocols’reliability, through the handshaking protocols and the simplified the Ethernet protocol, not only the data switching between CAN and Ethernet was realized, but also the differ in velocity and packet size was solved.
標(biāo)簽: C8051F040 CAN 以太網(wǎng) 轉(zhuǎn)換
上傳時(shí)間: 2013-10-15
上傳用戶:Ants
介紹一種基于CAN總線的牽引變電站自動(dòng)化系統(tǒng)通訊規(guī)約的設(shè)計(jì),CAN通訊規(guī)約采用標(biāo)準(zhǔn)幀,報(bào)文采用主動(dòng)發(fā)送和發(fā)送查詢兩種處理形式。該設(shè)計(jì)在城市輕軌與地鐵牽引變電站中的應(yīng)用表明:可實(shí)現(xiàn)間隔層和通訊處理層的數(shù)據(jù)快速、可靠的交換,提高牽引變電站的安全性和穩(wěn)定性 。 Abstract: This paper firstly presents a kind of design dealing with communicational protocol to the traction substation automation system based on CAN bus,and then comes up with the ideas that all frames of CAN communicational protocol should adopt the standard frame,and that messages be processed by two ways:sending initiatively and sending quiries.Subway and light rail application shows that the use of the CAN bus is possible to exchange data quickly and reliably between the layers of the middle and the communicational processing,hence to improve the safety and stability of traction substations.
上傳時(shí)間: 2013-11-07
上傳用戶:bs2005
對(duì)于瀝青混凝土攤鋪機(jī)自動(dòng)找平控制系統(tǒng)來(lái)說(shuō),數(shù)字式控制系統(tǒng)的研制是目前的一個(gè)方向。介紹了一種基于CAN總線的數(shù)字式自動(dòng)找平控制系統(tǒng)。該系統(tǒng)以CAN總線作為通信方式,PWM控制信號(hào)通過(guò)C8051F040單片機(jī)內(nèi)部PCA可編程計(jì)數(shù)器陣列產(chǎn)生,并具有結(jié)構(gòu)簡(jiǎn)單、信號(hào)穩(wěn)定、實(shí)時(shí)性強(qiáng)、易擴(kuò)展的特點(diǎn)。通過(guò)硬件實(shí)現(xiàn)和系統(tǒng)運(yùn)行達(dá)到了比較理想的控制效果,驗(yàn)證了系統(tǒng)的可行性。 Abstract: A digital auto-leveling control system based on CAN Bus is introduced.It uses CAN Bus as the method of communication and creates PWM signals by programmable counter array in C8051F040 microcontroller. The system is simple, stable, real-time and expansive.
標(biāo)簽: CAN 總線 數(shù)字式 控制系統(tǒng)設(shè)計(jì)
上傳時(shí)間: 2013-10-09
上傳用戶:ligi201200
議程1.瑞薩汽車業(yè)務(wù)概述2.儀表盤MCU解決方案3.CAN/LIN(車身)MCU解決方案
上傳時(shí)間: 2013-10-20
上傳用戶:王成林。
選擇了芯片后,就可以圍繞該芯片確定相應(yīng)的開發(fā)工具。開發(fā)工具的好壞往往是決定一個(gè)系統(tǒng)成敗的關(guān)鍵,下面是對(duì)CAN-BUS開發(fā)系統(tǒng)組成的一些建議:
上傳時(shí)間: 2013-11-02
上傳用戶:yueguizhilin
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