Singlechip in spi can be used to prepare the data manual.

89C51 单片机I_O 口模拟串行通信的实现方法--Simulate I_O serial port communication in 89C51 SCM.

i2c 总线 at512读写程序，适用于8051系统单片机系统-i2c bus at512 literacy procedures applicable to the 8051 system SCM System

可以用．精度达到１度．调试通过．显示部分用的是MAX7219 -can use. Achieve a degree of precision. Debugging through. The show is part of MAX7219

The example uses the GPIFTool utility to illustrate single/burst data read(s)/write(s).

实现单片机和计算机之间的数据交换, Windows 环境下的Visual Basic 6.0 作为可视化的编程工具, 具有完整的基于组件设计的可视化集成开发环境、操作简单、界面友好的特点。 上位机通信程序是用VB6.0 使用MAX232 来进行数据通信的协议, 既可 以使用查询方式又可以使用事件驱动方式来完成串行通信。-Realize single-chip computer and data exchange between computers, Windows environment Visual Basic 6.0 as a visual programming tool with a complete component-based design visualization integrated development environment, simple operation, user-friendly features of . PC communication program using VB6.0 using MAX232 to data communication protocol, we can use the query can also use event-driven approach to the completion of serial communication.

51单片机上的LCD12864驱动，相关的LCD驱动可以在我发布的其它驱动中找到。-51 MCU on the LCD12864 driver, LCD driver can be related to the other drivers I have found.

ID读卡程序,在可以读取ID卡卡号,判断身份,在门禁考勤大量应用-ID card reader, and in the can read ID cards card number, as judge, in a large number of applications are disucssed

MSC-51 3字节和4字节浮点数计算程序，主要用于数据采集及上传，经过IEEE转换，在上位机直接显示-MSC-51 3-byte and four-byte floating point calculation procedure used mainly for data acquisition and uploads After IEEE conversion, the PC directly show

PIC18F4550 SD CARD USB

* 功能：使用PWM6输出PWM信号，通过滤波电实现DAC转换。由KEY1控制PWM的占空比， * 每按一次按键将会改变一次PWM的占空比。 * 说明：使用示波器观察测试点PWM和PWMDAC。-* Function: Use PWM6 output PWM signal, by filtering electrical realize DAC conversion. Key1 controlled by the PWM duty cycle,* every time a button will change the PWM duty cycle.* Note: Use the oscilloscope to observe test points PWM and PWMDAC.