硬件描述语言,verilog HDL,实现了解码器的设计

说明：  在FPGA内利用verilog实现数字上变频(apply the verilog to implement the digital up frequency)

DDS的频率转换可以以近似认为是即时的，这是因为它的相位序列在时间上是离散的，在频率控制字改变之后，要经过一个时钟周期之后才能按照新的相位增量增加，所以也可以说它的频率转换时间就是频率控制字的传输时间，-DDS frequency conversion can be considered similar to real-time, this is because it is the phase sequence in time is discrete, in the frequency control word change after one clock cycle to go through before a new phase in accordance with the incremental increase, so it can be said of the frequency switching time is the frequency control word transmission time,

32bit floating point addition

本文档介绍了通用异步收发器（UART）VHDL 组件，它可以使用，也可以与PmodRS232或与一个板上的RS232端口。一个UART 部件被用于转换串行数据为并行数据，并且并行数据为串行数据。串行 转移到UART数据被放置在一个输出总线经过了UART将其转换成并行 信息。该总线可以被用作输入到其它逻辑门阵列中。所得到的数据可 然后再次使用UART组件被送回了串行。

ODBC编程实例，使用ODBC对基于开关量数据采集卡的通信接口设计与实现。(ODBC programming examples, using ODBC for data acquisition card based digital communications interface design and implementation.)

驱动8*8点阵块显示汉字，可以自己根据要显示的内容随意更改，已通过验证。(Blocks of 8* 8 dot matrix drive display Chinese characters, you can display the content according to their random changes, has been verified.)

用verilog编写的can总线控制器，包括设计参考历程和仿真程序，以及开发文档！(Written by verilog can bus controller, including the design reference course and simulation program, and the development of the document!)

讲述4ASK的原理并附有matlab调制解调的源码。。。。。。。。。。 注：原来上传的4ASKmod.zip不要下(The principle tells 4ASK together with modulation and demodulation matlab source. . . . . . . . . . Note: The original upload 4ASKmod.zip not down)

8051的vhdl源代码，主要针对初学者-8051 VHDL source code, mainly for beginners

直接序列扩频通信的Verilog仿真代码，在Quartus II中实现。(Direct sequence spread spectrum communication Verilog simulation code, implemented in Quartus II.)