So with the DDS

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

通过pid算法来对水温的测量、控制等功能-Pid algorithm adopted to temperature measurement, control and other functions

单片机AT90S系列 制作简易USB接口（软件模拟,无usb硬件）。asm源代码- Monolithic integrated circuit AT90S series manufacture simple USB connection (software simulation, non- usb hardware). Asm source code

这是一个数码管的程序，运行于iar的环境下，适用于msp430的单片机-This is a digital control procedures, running on iar circumstances, apply to MSP430 microcontroller

DS1302显示时钟，通过液晶12232显示。-DS1302 display clock through the liquid crystal display 12232.

PIC16F877控制DS1302时间芯片 ds1302时间芯片-PIC16F877 chip control DS1302 time ds1302 time chip

16c552驱动程序，两个穿口+1个并口的驱动程序-16c552 driver, two I wear a parallel port drivers

用于蓝牙开发！基于hci的编程，可实现单片机对蓝牙模块的控制，从而实现蓝牙主从设备的连接和通信！-for Bluetooth development! Based on HCI programming can be realized right MCU Bluetooth module control, thereby achieving Bluetooth equipment from the main connection and communication!

本程序可以利用74164串入并出芯片在七段共阴数码管上依次点亮0至9十个数字.. PA0....数据 PA1.....CP PA2.....是位选 在ATMEGA644P上调试通过-This procedure can be used to string 74,164 and a total of a chip in the seventh followed by vaginal digital tube light figures 0-9 10 .. PA0 .... data PA1 ..... CP PA2 ..... is selected through ATMEGA644P debugging

单片机程序在线设计 单片机程序在线设计-Single-chip Single-chip design process online program online online design single-chip design process