AD9226 fpga

Verilog 实验代码。。。经典的，里面都是完整的项目文件。 ISE环境。(Verilog test code. . . Classic, which is a complete project file. ISE environment.)

说明：  vhdl code for full adder

Fun little FPGA that plays a portion of Habanera

实现米粒状态机 用verilog语言实现状态机的过程(Implement a state machine with a grain of rice verilog state machine language course)

Designing Digital Down Conversion Systems with Altera CIC MegaCore and FIR Compensation Filter v6.1

此源代码是基于Verilog语言的持续赋值方式定义的 2 选 1 多路选择器 、阻塞赋值方式定义的 2 选 1 多路选择器、非阻塞赋值、阻塞赋值、模为 60 的 BCD码加法计数器 、模为 60 的 BCD码加法计数器、BCD码—七段数码管显示译码器、用 casez 描述的数据选择器、隐含锁存器举例 ，特别是模为 60 的 BCD码加法计数器，这是我目前发现的最优源代码，应用于解码器领域。(This source code is based on the Verilog language define the continued assignment of 2-to-1 multiplexer, blocking assignments define the 2-to-1 multiplexer, non-blocking assignments, blocking assignments, module code for the addition of 60 BCD counters, BCD code module for the addition of 60 counters, BCD code- seven-segment LED display decoder, the data described by casez selector, for example hidden latch, in particular, the BCD model code for the addition of 60 counters, this is my found that the best current source code, the decoder used in the field.)

《Verilog HDL 程序设计教程》7-"Verilog HDL Design Guide," 7

如上图所示， 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。 (As shown above, 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.)

说明：  DDS VHDL include everything of dds AD9914

使用FPGA做的数码相册实验，用NIOS做了FAT32文件系统和JPEG图像解码,FPGA和SDRAM做了显示的缓存(Using FPGA to do the digital album experiment, using NIOS to do the FAT32 file system and JPEG image decoding, FPGA and SDRAM to do the display cache)