汽車CAN網(wǎng)絡(luò)的MCU解決方案

　　汽車工業(yè)已經(jīng)接受診斷總線。這些非常簡(jiǎn)單、低成本的串行接口允許汽車制造商連接傳感器、執(zhí)行器、電源控制、按鈕、開關(guān)、顯示器、指示器等。過去復(fù)雜、昂貴、而且通常不可靠的線束捆綁都已經(jīng)消失了。

　　這也是專業(yè)力學(xué)和“自己動(dòng)手”的福音。低成本的讀者可以幫助解決現(xiàn)代汽車和發(fā)動(dòng)機(jī)的問題。當(dāng)它進(jìn)入汽車的電子設(shè)備時(shí)，我們可以訪問引擎統(tǒng)計(jì)數(shù)據(jù)、實(shí)時(shí)傳感器數(shù)據(jù)、設(shè)置、模式、存儲(chǔ)警報(bào)和錯(cuò)誤代碼。

　　許多嵌入式設(shè)計(jì)利用了這種連接，從低成本的信號(hào)傳遞和攔截（用于遠(yuǎn)程啟動(dòng)器），通過手持?jǐn)?shù)據(jù)終端類型的閱讀器，到更復(fù)雜的實(shí)時(shí)數(shù)據(jù)采集工具，用于賽車和其他高性能應(yīng)用。

　　As a result， there is a range of microcontrollers， from small 8-bit to high-end 32-bit parts， that target this large and receptive crowd via the CAN bus， a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer. This message-based protocol was designed specifically for automotive applications， but is now also used in areas such as aerospace， industrial automation， and medical equipment.

　　This article looks at microcontrollers supporting CAN applications. All parts， datasheets， tutorials， and development systems referenced in this article can be found on the Digi-Key website.