all passed, I was carefully designed, fully meet the requirements of beginners....

用walsh算法实现的符号数乘法器,asic流片时,可以不用公司的付费乘法器的ip core.-algorithm using the symbols multiplier, HDL-piece quantities. it is not necessary for the company"s paid Multiplier ip core.

代码使用应用于 FPGA的VHDL代码，主要是告诉大家时序逻辑和组合逻辑的应用场合和区别，希望能够对大家有所帮助

first in first out 的说明文档以及时序图 对学习FIFO很有帮助(first in first out the documentation and the timing diagram helpful in learning FIFO)

说明：  这里是apb总线设计代码。这个源程序是基于verilog语言设计的(Here is the APB bus design code. This source program is designed based on Verilog language)

说明：  OFDM载波同步，Verilog编写，完全正确！！！(verilog )

在ise开发环境下，建立顶层模块和子模块的层次结构，其实现的功能是一个可复位课暂停开始继续的建议秒表(In ise development environment, establish a hierarchy of top-level modules and sub-modules, and its function is to achieve a resettable class resumes proposal to suspend the stopwatch)

在Quartus环境中，采用VHDL语言编写的出租车计费系统，系统共分为分频、状态切换、记程、计费等模块，模仿现实中出租车计费。-In the Quartus environment, the use of VHDL language taxi billing system, the system is divided into sub-frequency, state switching, recording process, billing and other modules, to imitate reality, taxi billing.

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

VHDL数字系统设计和工程实践2，包含原理，真值表和原理图，以及VHDL源代码.-VHDL digital system design and engineering practice, one that contains principles, truth table and schematic, as well as VHDL source code.

关于VHDL和verilog的数码管显示程序，写的很好，值得参考。(About VHDL and verilog digital tube display program, write well, worth considering.)