汽车CAN网络的MCU解决方案
汽车工业已经接受诊断总线。这些非常简单、低成本的串行接口允许汽车制造商连接传感器、执行器、电源控制、按钮、开关、显示器、指示器等。过去复杂、昂贵、而且通常不可靠的线束捆绑都已经消失了。
这也是专业力学和“自己动手”的福音。低成本的读者可以帮助解决现代汽车和发动机的问题。当它进入汽车的电子设备时,我们可以访问引擎统计数据、实时传感器数据、设置、模式、存储警报和错误代码。
许多嵌入式设计利用了这种连接,从低成本的信号传递和拦截(用于远程启动器),通过手持数据终端类型的阅读器,到更复杂的实时数据采集工具,用于赛车和其他高性能应用。
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.
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