vhdl,双向移位寄存器，实现置数，左移及右移操作

步进电机驱动，32等级速度，带加减速度控制。verilog编写。(step motor driver,32 level speed.)

资源描述这个秒表特点是计数到59分59秒9，并且有可以让计数暂停和清零。采用了二分频，六进制和十进制组合，加上扫描电路设计而成的。

these files are written in verilog but i am uploading in text format

买的Altra公司的一款Max II EPM1270T144的电路板，其中的一个用Verilog HDL 编写的驱动数码管的程序，完全可用。-Altra Inc. bought a Max II EPM1270T144 circuit board, one written in Verilog HDL using the digital controls process-driven, fully available.

频率计VHDL编程。设计一个4位数字显示的十进制频率计，其测量范围为1MHz，测量值通过4个数码管显示以8421BCD码形式输出，可通过开关实现量程控制，量程分10kHz、100kHz、1MHz三档(最大读数分别为9.999kHz、99.99kHz、999.9kHz)； 当输入信号的频率大于相应量程时，有溢出显示。 -Cymometer VHDL programming. Design of a 4-digit decimal display frequency, the measurement range of 1MHz, the measured value through the four LED 8421BCD code shows the form of output can be controlled through the switch range, range at 10kHz, 100kHz, 1MHz Three (maximum reading were 9.999kHz, 99.99kHz, 999.9kHz) when the input signal is greater than the corresponding frequency range, it shows overflow.

数字秒表的VHDL设计,能精确到百分秒,在6位数码管上显示,分别有秒,分,小时,通过目标芯片EPF10KLC84-4验证-VHDL design of digital stopwatch, accurate to the percentage of seconds in the six digital tube display, respectively, have seconds, minutes, hours, through the target chips EPF10KLC84-4 verification

自己写的FPGA实现电子琴的VHDL程序，曲目是两只老虎，用到一些模块，和片内存储间，呵呵(FPGA realization of his keyboard to write the VHDL program, tracks are two tigers, a number of modules used, and on-chip storage room, huh, huh)

0到255任意整数半整数分频Verilog HDL.rar-0-255 arbitrary integer half-integer frequency division Verilog HDL.rar

一个用vhdl硬件描述语言实现的一个比较简单的除法器-an divider using vhdl

文利用直接数字频率合成器(DDS)与CPLD技术和单片机控制技术，研制和 设计了高分辨率、高稳定度的函数信号发生(Wen using direct digital frequency synthesizer (DDS) and CPLD technology and single-chip microcomputer control technology, development and Design of high resolution, high stability function of the signal )