Introduced single

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.

//P89C51RC+、P89C51RD+特有例子//初始化错误或通信错误等待1秒，让 //pc程序超时并报告错误-//P89C51RC, P89C51RD specific examples// initialization error or wait for a communication error seconds,// pc overtime procedures and report errors

430单片机的NRF905的驱动 调试已经通过 保证可以使用 msp430f147-430 SCM NRF905 debugging has been driven by guaranteeing use msp430f1 47

MCS-51单片机 实用子程序库 学习单片机的一些实用的好-MCS-51 single-chip single-chip utility subroutine library to learn some practical good

ppp协议的功能实现部分,为了成功测试简化了部分代码. 可在keilc7.0上编译通过. 最初的代码是在摩托罗拉的68上实现的.-ppp function realization of the agreement, in order to successfully test simplified some code. In keilc7.0 compiled through. The original code is in Motorola"s 68 on the case.

一份非常完整的51单片机与P/S2键盘的通信程序，含有大量注释，不错的。-A very complete 51 SCM and P/S2 keyboard communication program, containing a large number of comments, good.

1602LCD显示c51-1602LCD show C51

LCD_disp是针对SMS0810B型号液晶的汇编语言；其他的是与430单片机有关的C代码-LCD_disp against SMS0810B LCD models of assembly language; and the other is SCM 430 C of the Code

一个数据库引擎,可以创建和读写DBF格式的数据库文件-A database engine, you can create and read and write DBF database file format

本文介绍了两种分频系数为整数或半整数的可控分频器的设计方法。其中之一可以实现50％的奇数分频。利用VHDL语言编程，并用QUARTERS||4.0进行仿真，用 FPGA 芯片实现。 关键词：半整数，可控分频器，VHDL, FPGA -This article describes two kinds of sub-frequency coefficient is an integer or half-integer divider controllable design method. One of them can achieve 50 of the odd-numbered sub-frequency. The use of VHDL language programming, and QUARTERS | | 4.0 simulation, using FPGA chip. Key words: semi-integer, controllable divider, VHDL, FPGA