"Verilog HDL Design Guide" 8

用可编程逻辑器件实现PWM波形即PWM波形发生器-Using programmable logic devices that realize PWM waveform PWM Waveform Generator

multisim 程序 使用教程 详细明了清楚(multisim tutorial program uses more clearly understand)

SPI协议的VHDL/Verilog语言实现。(SPI agreement VHDL/Verilog language.)

接口键盘和液晶屏上AT89S52代码

Rst是低电平有效的系统复位信号，Clk是时钟信号。AB[5：0]是地址信号，DB[7：0]是数据信号，wr是低电平有效的写信号。start是启动信号。 模块中有一个64x8的双端口的存储器。系统复位结束后，可以通过AB、DB和wr信号向同步存储器写入数据。当写入64个数据后，给出一个Clk周期宽度的脉冲信号start，则系统从存储器0地址处开始读出数据，读出的8位数据从低位开始以3位为一组，每个时钟周期输出一组，即第一个时钟周期输出[2：0]位，第二个时钟周期输出[5：3]位，第三个周期输出1地址的[0]位和0地址的[7：6]位，直至将存储器中64x8数据全部输出。若最后一组不足三位，则高位补0。 (Rst is an active-low system reset signal, Clk is a clock signal. AB [5: 0] is the address signal, DB [7: 0] is the data signal, wr write signal is active low. start is the start signal. Module in a dual port memory of 64x8. After the reset, you can write data to the synchronous memory by AB, DB and wr signals. When data is written to 64, given the width of a pulse signal Clk cycle start, the system begins to read the memory address 0, 8 data read out a low starting with three as a group, each clock outputs a set period, which is the first clock cycle of the output [2: 0] bits, the second clock cycle output [5: 3] position, the third cycle of the output of an address [0] and 0 address [7 : 6] bit, until all the data in memory 64x8 output. If the last group of less than three, the high 0s.)

用verilog编写的I2C——E2PROM模型。适用于各种型号的E2PROM，代码内部有参数可选。(Written in verilog I2C- E2PROM model. E2PROM, the internal code applicable to various types of optional parameters.)

说明：  this describes building spi block on verilog hdl and programming them on an fpga device

多相滤波系统的设计与实现，有MATLAB仿真程序，有sysgen的系统仿真，还有VHDL代码，其中还有FIR的系数参数等等(Polyphase filter system, the design and implementation includes a MATLAB simulation program, sysgen system simulation, and VHDL code, including FIR coefficient parameters, and so on )

FPGA部分源代码，关于dsp48的应用，从一本很好的书上下的

实现了四bit计数器的功能，使用的是VHDL语言描述(Four-bit counter, using the VHDL language description)