现场总线是最近20几年发展起来的新技术,CAN总线是一种最广泛应用的现场总线,嵌入式系统是用于执行独立功能的专用计算机系统。汽车仪表系统在目前CAN总线的基础上,引入嵌入式系统,使汽车仪表技术的一个崭新的发展方向。文章对该仪表系统的硬件选择的一般原则和软件开发的基本方法。%Fieldbus is developed in recent 20 years, this new technology CAN bus is one of the most widely applied fieldbus, embedded system is used to execute independent function of special computer system. In the current car instrument system based on CAN bus, in
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