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这是一个完成单片机串口的操作的源码程序，该程序是通过串口中断的方式进行的-This is a complete single-chip serial port operation of the source program through the serial port interrupt manner

基于keil c51的rtos tiny源代码（keil 7.05 version）-based on the Byelorussian tiny decoder source code (c51 7.05 version)

该程序为USB HUB程序，其作为开发USB HUB类型的产品很有帮助。-procedures for the USB hub procedures, as the development of types of USB hub products helpful.

/*P89CXX计算机程序员发送*//*所需定义编程cpu类型0:P89C51 1:P89C52 2:P89C54 3:P89C58 4:P89C51RC 5:P89C51RD*/

步进电机控制，c版本，proteus仿真-Stepper motor control, c version, proteus simulation

数字频率合成器DDS9851控制系统的单片机源代码，键盘输入频率，液晶显示，并实时输出所需频率，该系统可选择输出方波和正弦波。-Digital Frequency Synthesizer Singlechip DDS9851 control system source code, keyboard input frequency, liquid crystal display, and real-time output frequency required, the system can choose the output square wave and sine wave.

一个采用C8051F020+CH372实现的带USB功能的流量测控系统，包括C8051F020的AD/DA/串口编程、触摸屏的串口编程、CH372实现的USB接口编程（原创）等。这些源代码已在某产品中使用。-A used C8051F020+ CH372 achieved with USB function of flow measurement and control system, including the C8051F020 the AD/DA/serial programming, the serial touch-screen programming, CH372 realized USB Interface Programming (original) and so on. These source code has been used in a product.

用单片机I/O口模拟总线形式的通用驱动程序，用C51编写-MCU I/O simulation generic form of bus drivers, prepared with C51

C51 TIMER 0的使用 Timer_0_mode_1_counter_gate_hard-C51 TIMER 0 use Timer_0_mode_1_counter_gate_hard

本人非常支持单片机设计DIY 在这里再次献出小弟的一点心意,下面是使用AT89S52驱动74HC4015,实现1选择8的数据通道切换器,可以在不8个通道出加上不同大小的电阻.可以用来单声道音量的大小控制. 下面作品图是小弟设计的廉价的 基于单片机的毕业设计 ,它还使用了无线接收发送模块,通过使用手上的遥控器能控制音量的大小,还加了一块HCF4052用于输入音道的选择,支持思路音频信号的输入,一路音频信号的输出: -I very much support the single-chip design DIY here again gave a little boy s mind is to use the following AT89S52 drive 74HC4015, to achieve a choice of 8 switches the data channel, you can not add the 8-channel resistance of different sizes. Can used to the size of mono volume control. The following work plan is designed小弟cheap graduation based on single-chip design, it uses the wireless receiver send module, through the use of the hands of the remote control can control the volume size, but also Add a piece of HCF4052 Road for the importation of sound choices, to support the idea of audio signal input, the output audio signal all the way: