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根据汽车电子点火系统的组成及工作原理,以MCS—51系列单片机为核心,完成了主机单元电路、复位电路、看门狗电路、初级电流限制电路、电源电路等硬件电路设计,阐述了Keil C51软件各功能模块及编程实现方法,分析了电子霍尔点火器能够实现的基本点火控制、闭合角控制、发动机停转断电保护、初级电流限制和发动机转速输出等功能,完成了各功能程序及主程序设计,并在单片机开发板上进行了程序功能的调试。
According to the composition and working principle of automotive electronic ignition system, MCS-51 series microcontroller is taken as the core to complete the hardware design of the host unit circuit, reset circuit, watchdog circuit, primary current limit circuit and power supply circuit. The design of Keil C51 Software function modules and programming methods to analyze the basic ignition control, closed angle control, engine stalling power protection, primary current limit and engine speed output electronic hall can achieve the completion of the function of the program and The main program design, and debugging in the microcontroller development board features.