汽車CAN網絡的MCU解決方案

　　汽車工業已經接受診斷總線。這些非常簡單、低成本的串行接口允許汽車制造商連接傳感器、執行器、電源控制、按鈕、開關、顯示器、指示器等。過去復雜、昂貴、而且通常不可靠的線束捆綁都已經消失了。

　　這也是專業力學和“自己動手”的福音。低成本的讀者可以幫助解決現代汽車和發動機的問題。當它進入汽車的電子設備時，我們可以訪問引擎統計數據、實時傳感器數據、設置、模式、存儲警報和錯誤代碼。

　　許多嵌入式設計利用了這種連接，從低成本的信號傳遞和攔截（用于遠程啟動器），通過手持數據終端類型的閱讀器，到更復雜的實時數據采集工具，用于賽車和其他高性能應用。

　　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.