本科论文目录摘要…Abstract.…引言1方案设计1.1总体方案论证342项目硬件设计2.1单片机2.1.1 ARM Cortex-M4内核2.1.2STM32F407ZGT6芯片2.2最小系统模块2.3LCD显示电路92.4CAN通信电路112.5蜂鸣器以及按键电路12143.1主程序流程3.2 FreeRTOS移植.153.3 emWin图形界面实现3.4 Simulink建模处理194项目调试…214.1软件调试214.1重点问题及解决2225附录：程序主函数27致谢36本科论文摘要当前，随着科技的发展，汽车功能的日益增多，汽车仪表系统也变得愈发多元化。传统的机械式指针仪表因为其繁琐的布线方式和点对点的通信方式，已不能满足当前行业的需求。因此，研究一款功能多样，结构简单，安全可靠的仪表系统成为汽车产业技术开发和研究的热点之一山。本次课题基于STM32F407微型控制器以及CAN总线通信技术，设计一款新型全液晶汽车仪表。相比于传统的机械式指针仪表，本设计的汽车仪表具有简单的接线方式，快速的模块之间通讯以及全液晶显示等特点。同时，该课题中采用emWin技术进行LCD液晶显示屏的设计，具有更直观美化的人机交互界面，而且由于采用了CAN总线通信方式，元器件与控制元件(ECU)之间信息传递性将会更好。本次课题，采用CAN分析仪开发测试工具，通过定义好相关模拟变量，模拟实际汽车中的情况输入CAN信号报文并利用Simulink建模进行汽车仪表灯的逻辑处理。同时将FreeRTOS实时操作系统移植到STM32F407上，利用STM32芯片输入输出信号，进而达到点亮汽车仪表的目的。通过软件与硬件方面的调试，该课题达到了预期研究要求，证明了课题技术上的可行性以及延展性。关键词：汽车仪表；CAN总线：STM32F407;Simulink建模；FreeRTOS本科论文AbstractWith the development of science and technology,the function ofautomobile is increasing rapidly.The traditional mechanical pointer instrumentcan not meet the needs of current industry because of its cumbersome wiringmode and point-to-point communication.Therefore,the research of a newinstrument system with characters like function diversification,simple structure,safe and reliable has become one of the important issues in the development andresearch of automobile industry technology.Based on stm32f407 micro controller and CAN BUS communicationtechnology,this project designs a new type of full LCD automobile instrument.Compared with the traditional mechanical pointer instrument,the newinstrument has the characteristics of simple wiring,fast communication betweenmodules and full LCD display.In addition,the design of LCD with emWintechnology in this project provides a more visibly human-computer interface.Byusing CAN bus communication,the information transmission betweencomponents and control elements (ECU)is better.In this project,CAN analysistool is used to simulate actual situation by giving relevant simulation variables,inputting CAN signal message and carrying out the logic processing of vehicleinstrument lamp with Simulink modeling.Moreover,the FreeRTOS real-timeoperating system is also transplanted to stm32f407,the input and output signalsof STM32 chip are used to lighten the automobile instrument.Through the debugging of software and hardware,the project has achievedthe expected research requirements,and has proved the technical feasibility andscalability of this project.Keywords:Automobile instruments;CAN bus;STM32F407;Simulinkmodeling;FreeRTOS