VHDLVERILOG语言实现的CARDBUS的IP源码,已经实现现场应用

出租车计价器VHDL程序与仿真 的vhdl源代码-Taximeter VHDL procedures and simulation vhdl source code

数字载波发生器，产生一个正弦波，工程中的所有模块都经过测试并运行没有任何问题，而且利用逻辑分析仪对每个模块的输出都进行了逻辑测试。并经过D/A转换得到了正弦波波形，但唯一的缺点是没有滤波器，如果有人想看标准正弦波，可以自制一个简易低通滤波器进行观看，如有不清楚的地方可以把问题发到我的邮箱jiangguoqian@126.com一起探讨研究。(sinewave)

mux2to1.vhd二选一电路mux2_1.vhd二选一电路mux2_1.bdf二选一电路mux3to1.vhd三选择电路mux3to1_1.vhd三选一选一个电路mux4to1.vhd 4

本文设计了基于加速度传感器的计步器，并通过仿真以及实际调试得到了相应的结果的记录。本实验首先通过加速度传感器检测目标物体的运动，产生脉冲，将脉冲放大后经过施密特触发器整型为方波，并给出了方波的调试电路图。然后编写程序，利用D触发器检测方波的上升沿，当上升沿到来时，计数，并对十位、个位分别编码，然后由使能信号交替控制数码管输出结果。本文给出了仿真以及调试的程序、结果。(This article is designed pedometer-based acceleration sensor and the corresponding results recorded by simulation and debugging. The experiments by first acceleration sensor detects the movement of the target object, generates a pulse, the pulse amplification is a square wave after the Schmitt trigger integer, and gives the the debug circuit diagram of a square wave. Then write procedures, the use of the rising edge of the detection of the square wave of the D flip-flop, when the rising edge, the count, and ten bits are encoded, and then alternately by the enable signal output of the digital control. In this paper, a simulation and debugging procedures, results.)

veilog 代码 用户可以直接调用，作为底层模块。同时已经编译成功，可以作为基本单元库。-veilog code user can derict use it for the base mode.

4x4键盘模块。这个文件包括普通的键盘设计方案说明和相关的原程序。-4x4 keyboard module. The documents include ordinary keyboard design program descriptions and procedures related to the original.

假设每个从设备中有可访问APB寄存器16个，位宽均为32比特，16个寄存器的访问地址计算方式为 基址 +　寄存器编号左移２位（byte 偏移）(Assuming that there are 16 accessible APB registers in each slave device, the bit width is 32 bits, and the access address of 16 registers is calculated by base address + register number left shift 2 bits (byte offset).)

电子密码锁程序，密码输入正确之后，锁就打开，如果输入的三次的密码不正确，就锁定按键3秒钟，同时发现报警声-Electronic code lock procedure, enter the correct password, the lock will open, if entered incorrect password three times, on the lock button 3 seconds, also found the sound alarm

The Hilbert Transform is an important component in communication systems, e.g. for single sideband modulation/demodulation, amplitude and phase detection, etc. It can be formulated as filtering operation which makes it possible to approximate the Hilbert Transform with a digital filter. Due to the non-causal and infinite impulse response of that filter, it is not that easy to get a good approximation with low hardware resource usage. Therefore, different filters with different complexities have been implemented. The detailed discussion can be found in "Digital Hilbert Transformers or FPGA-based Phase-Locked Loops" (http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4629940). The design is fully pipelined for maximum throughput.

VHDL_count 从 0000 到 9999 7 段 LED 显示器 （đếm 慈 0000 đến 9999 hiển 施耐 4 领导 7 đoạn）