里面是sd程序，非常全面，要的可以下载！

nR24L01_EVB开发板试验接口初始化及模块读写程序-nR24L01_EVB development board initialization and test interface module to read and write procedures

51操作系统RTX51应用,对任务的调度会有很好的了解,很适合初学操作系统的人,另外加了PROTUES对操作系统的仿真-51 operating system RTX51 application of the mission will have a good understanding of scheduling, it is suitable for beginners operating system, and added another on the operating system PROTUES Simulation

在用单片机设计的电梯模型中，电梯下降的控制程序-Single-chip design with an elevator model, the decline in elevator control procedures

基于avr（mage16）的bootload实验范例，使用winavr编译。-Based on the avr (mage16) Experimental example of the serial port, use the compiler winavr.

PS2 键盘可靠控制c源码，单片机应用，不同于别的PS2程序，非常可靠稳定-PS2 keyboard and reliable control of c-source, single-chip applications, different from the other PS2 procedures, very reliable stability

C8051F020的KEIL工程文件，包括一些内部资源使用代码，以及TS19264的驱动程序-C8051F020 KEIL project, including some internal resources to use code, as well as TS19264 drivers

C8051F单片机是完全集成的混合信号系统级芯片（SoC），具有与8051兼容的高速CIP-51内核，与MCS-51指令集完全兼容，片内集成了数据采集和控制系统中常用的模拟、数字外设及其他功能部件；内置FLASH程序存储器、内部RAM，大部分器件内部还有位于外部数据存储器空间的RAM，即XRAM。C8051F单片机具有片内调试电路，通过4脚的JTAG接口可以进行非侵入式、全速的在系统调试。-C8051F is a fully integrated mixed-signal system-on-chip (SoC), and 8051 compatible with the high-speed CIP-51 core, and MCS-51 compatible instruction set, on-chip integration of the data acquisition and control system used in analog and digital peripherals, and other functional components; embedded Flash program memory, internal RAM, the majority of devices located within the external data memory space of RAM, XRAM. C8051F with on-chip debug circuit, through the four legs of the JTAG interface can be non-invasive, full-speed debugging of the system.

/* 程序详细功能介绍： *当按下按键P3.3 ，AT89S51单片机产生“叮咚”声从P3.2端口输出 *程序设计方法 * 1． 我们用单片机实定时/计数器T0来产生700HZ和500HZ的频率，根据定时/计数器T0，我们取定时250us， * 因此，700HZ的频率要经过3次250us的定时，而500HZ的频率要经过4次250us的定时。 * 2． 在设计过程，只有当按下SP1之后，才启动T0开始工作，当T0工作完毕，回到最初状态。 * 3． “叮”和“咚”声音各占用0.5秒，因此定时/计数器T0要完成0.5秒的定时，对于以250us为基准定时2000次才可以。 */-/* Procedure detailed functional Introduction:* When pressing the button P3.3, AT89S51 Singlechip a

这不是源码，这是Protel99SE版本的 通用器件封装库，很多朋友在寻找-source, which is Protel99SE generic version of the device packaging for many friends in the search for

基于MSP43O单片机的I2C总线软件包-MSP43O based SCM package I2C Bus