单片机基础c语言之条件编译

无线射频芯片SI4432技术手册及编程指南（中文）(Radio frequency chip SI4432 technical manuals and Programming Guide (Chinese))

STM32F103C8T6 SPI1 通讯, 控制AD5420, DAC8750 驱动程序, KEIL4开发环境(STM32F103C8T6 SPI1 communication, control AD5420, DAC8750 driver, KEIL4 development environment)

电话语音管理系统的工程项目代码，需要的请拿去使用吧，任意修改!(Telephony management system project code chunks, arbitrary changes)

一个测距小车的设计，其中包含程序，proteus，pcb，论文，非常全面！( 1 Ranging car design, which includes program, proteus, pcb, papers, very comprehensive!)

说明：  MCS51系列单片机实现的16X2的LCD的数据显示(MCS51 MCU series of 16X2 LCD data)

说明：  STM32控制AD9954产生正弦波等波形，频率幅值可调，包含两篇论文。(STM32 controls AD9954 to generate sinusoidal wave and other waveforms with adjustable frequency amplitude, including two papers.)

说明：  stm32的串口通信，环形队列接收，防止数据过多的时候发生丢失的情况(STM32 serial communication, ring queue receiving, to prevent data loss when too much)

51单片机程序，用端口与定时器模拟串口，全异步通信！(51 use port and timer virtual com.)

51单片机蜂鸣器音乐播放器的头文件，可自己更改旋律(51 MCU buzzer music player header file, you can change the melody)

本实验,STM32通过串口1和上位机对话，STM32在收到上位机发过来的字符串(以回车换 行结束)后，原原本本的返回给上位机。下载后，DS0闪烁，提示程序在运行，同时每隔一定时间，通过串口1输出一段信息到电脑。(In this experiment, STM32 through the serial port 1 and host computer dialogue, STM32 received the host computer sent to the string (in return for After the end of the line), return to the host computer. After downloading, the DS0 flashes, prompting the program to run while each A certain time, through the serial port 1 output a piece of information to the computer.)