dxp、keil垃圾清理

用Multisim实现的函数信号发生器，仿真成功，课程设计可以参考利用(Achieved using Multisim function signal generator, successful simulation, curriculum design can refer to the use of)

说明：  基于STM32的脉搏电子血压计（原理图+程序）(Pulse electronic sphygmomanometer based on STM32 (schematic + program))

can总线基于j1939-21协议的故障码多包发送程序( CAN fault code data reorganization and multi package launch )

这是一款模拟modbus从机的程序，可以方便用户调试modbus程序，本程序完全免费。(This is a simulation of the modbus from machines, can facilitate users to debug the modbus program, this program is completely free. )

说明：  野火官方freertos内核实现与应用，书籍和配套代码(freertos The first part of the program does not rely on the development board, direct simulation can be run.)

该库函数用于驱动L293D模块，电机的前进后退等代码封装在里面面(The library function is used to drive L293D module.)

DS1302实时时钟芯片驱动程序,系统时钟7.3728MHZ，设置熔丝位为外部高频石英晶体振荡，启动时间4.1ms。(DS1302 real-time clock chip driver, the system clock 7.3728MHZ, set the fuse bit for the external high-frequency quartz crystal oscillation, startup time of 4.1ms.)

sim900a gprs上传数据，51单片机c语言源程序(sim900a gprs upload data, 51 c language source)

分支与循环程序的各种讲解与代码和程序。教导类型代码。(Branch and circulation procedure of various explanations and code and procedures.)

停车厂系统 道闸板控制程序 应用在实际工程中(Road gate control program)