with C

STC单片机内部的ISP和IAP系统，提供了单片机内部的低功耗状态-STC Single-chip ISP and IAP internal systems, provide a single-chip internal low-power state

用ADC0809做成的数字电压表 内部带有完整的原理图 仿真图 程序-ADC0809 made with digital voltage meter with a complete internal schematic diagram simulation procedures

单片机 Keil＋proteus 并行口设计数字键盘实验 要求：掌握动态显示、动态扫描键盘的工作原理及硬、软件的设计、调试方法 掌握80C51接口硬件电路设计方法及软件编程方法 了解80C51外部中断的使用和编程方法 实验题目：并行口实现数字0~9、A~F、L、U、P、n总共20个键盘，将按键的结果用7段数码管显示出来。-Parallel Port numeric keypad test requirements: master the dynamic display, dynamic scan the keyboard works and the hardware and software design, debugging the means to acquire 80C51 interface hardware circuit design methods and software programming approach to understanding the 80C51 external interrupts use and programming methods Experimental subjects: parallel port for digital 0 ~ 9, A ~ F, L, U, P, n total of 20 keyboard, the result will be keys to use 7-segment digital tube display.

无线模块nrf2401驱动程序，介绍了NRF2401应用操作的源程序代码-Wireless module nRF2401 driver, introduced the application of the operation of nRF2401 source code

12864液晶画图原C代码

2051控制两组LED交叉显示的99分定时器源代码。-2051 LED control groups showed the 99 cross-timer source code.

关于CPU卡最浅显易懂的介绍资料，内容详尽，适合对CPU卡所知甚少的新手阅读。-On the CPU card of the most easy to understand introduction to the information, content, detail, suitable for CPU card little was known about the novice to read.

学习C51的同学， 可以看看这个 ， 有了这个， 保你学习进度可以提升3成速度。-If you wanna learn C51 more fast, this resoure maybe give you a helper.

该程序是单片机ATMEGA103通过GPIO口模拟SPI总线协议的SPI读写函数-The program is through the GPIO port ATMEGA103 Singlechip simulation SPI bus protocol of the SPI read and write function

单片机串口程序，可以通过keil编译，实现一台主机和多台从机的通信，从机挂接同一条总线,主机对通信有决定权 -MCU procedures, Keil compiler can achieve a host and multiple communications from the plane, from the plane with an articulated bus, the mainframe has the right to decide Communications