(改进版)C51拼音输入法

本程序将指定的显示缓冲区送显，并将读取的键值送显。 入口参数：显示缓冲区首地址在SADR中,要显示的位数在CNT中。 出口参数: 无。-This procedure will be sent to the designated display buffer significantly, the key will be sent to a significant reading. Entrance parameters: the first address in the display buffer SADR, it is necessary to show that the median of the CNT. Export parameters: None.

利用单片机实现RS485多机通信程序示例-use MCU RS485 multi-machine communication program examples

用单片机控制max7219做的led静态显示试验-Max7219 done with single-chip microcomputer to control the led display static test

串口st7905的控制，可以成公显示！直接上传的为修该版本-St7905 serial control, could become public display! Direct upload to repair the version of

以数字形式显示时、分、秒时间，十位、个位备用一个数码管显示，分秒为一个60进制计数器，小时为一个“十二翻一”计数器 扩展功能：闹钟、仿电子钟报时、触摸报整点时数和自动报整点时数-clock

dijkstra算法源代码，实现了dijkstra算法，并附有一个简单路网文件-dijkstra algorithm source code, to achieve the dijkstra algorithm, together with a simple network file

1―wire总线的详细介绍，对有设计硬件电路的同志有帮助-1-wire bus detailed description of the hardware design of a circuit to help comrades

内容：1、本程序用于测试4相步进电机常规驱动 2、需要用跳帽或者杜邦线把信号输出端和对应的步进电机信号输入端连接起来 3、速度不可以调节的过快，不然就没有力矩转动了 4、按s4（设置成独立按键模式）可以控制正反转 -Contents: 1, the procedure used to test the four-phase stepper motor-driven two conventional, need to jump cap or the signal output line of DuPont and the corresponding stepper motor signal input terminal connected three speed adjustment can not be too fast, Otherwise, there would be no moment of rotation of the four, according to s4 (set to form an independent key mode) can control the positive inversion

USART以查询方式收发数据，接收发自电脑的数据，将其显示在LED上，并将接到到的数据减1后返回电脑-USART to send and receive data to query, receive from the bottom of the computer data that could be displayed in the LED, and will receive the data returned by a computer

用8051控制DDS信号发生器，产生1HZ-10MHz的正弦波/三角波/方波-DDS with 8051 control signal generator, producing the 1HZ-10MHz sine/triangle/square wave