digital

Iar环境下avr_bootloader的编写，可以参考参考。(Preparation of Iar under the environment of avr_bootloader, can refer to the reference.)

这是一份设计报告，内容为2FSK的数字通信系统，里面有仿真图和电路图(This is a designing report about 2FSK digital communication system)

AT89C51控制步进电机，实现正反转加减速，驱动芯片是ULN2803.(AT89C51 control the stepper motor to achieve reversing acceleration and deceleration, the driver chip is the ULN2803.)

本节所给出主程序功能为51单片机从USB总线读取两个字节数据，计算两个数据的和。另外本文还给出了CH372的主端点、辅助端点之间数据上传下传的子程序，供读者参考。(The main function of this section is given as 51 microcontroller reads the two bytes of data the USB bus, two data and computing. This article also gives additional primary endpoint between the auxiliary endpoints CH372 Uploaded data transfer routines, for reference)

modbus 协议，从机模式.工业通讯支持(modbus 协议，从机模式。工业通讯支持)

用C8051F020实现正弦波的程序设计(Program designed to use the C8051F020 achieve sine wave)

打孔机主要用于在制造印刷线路板流程中的打孔作业。本问题旨在提高某类打孔机的生产效能。 打孔机的生产效能主要取决于以下几方面：（1）单个过孔的钻孔作业时间，这是由生(this is a new suan fa ofaa)

单片机串口发送程序，试一次课设做的，非常非常好用(Chip serial transmission program, try again Lesson set, very, very easy to use)

这是一个基于THEVENIN的锂电池模型，能够观察到SOC和OCV。(This is a DCDC chopper, and is isolated and can be converted to low-voltage DC high-voltage direct current and voltage controlled to achieve, can be used for battery charging and discharging.)

六路炉温检测系统，含有技术报告，原理图、pcb，系统源程序，上位机源程序。(Her temperature detection system, contain a technical report, schematic and PCB, system source code, source program of the host computer is designed.)