VHDL语言教材

这是spi接口传输的一部分内容，本源码一共三部分，功能：spi接口的的实现即对外设的读写数据-This is the spi interface transfer part of the contents of a total of three parts of this source, function: spi interface that the realization of the read and write data to the peripheral

说明：  OFDM基带处理的书籍和论文，以及发送和接收端源码。(OFDM baseband processing books and papers, as well as send and receive source code.)

基于SystemC的Uart模型-----文档(SystemC the Uart model of----- document)

这是一个vhdl代码的进位选择加法器及其工作100%。

奇数分频-此程序对输入频率sysclk有奇数（X）分频的功能(Odd frequency- this program has an odd number of input frequency sysclk (X) frequency function)

产生长度为100的随机二进制序列 发送载波频率为10倍比特率，画出过采样率为100倍符号率的BPSK调制波形（前10个比特） ，及其功率谱 相干解调时假设收发频率相位相同，画出x(t) 的波形，假设低通滤波器的冲激响应为连续10个1（其余为0），或连续12个1 （其余为0） ，分别画出两种滤波器下的y(t)，及判决输出（前10个比特） 接收载波频率为10.05倍比特率，初相位相同，画出x(t) 的波形，假设低通滤波器的冲激响应为连续10个1，画出两种滤波器下的y(t)，及判决输出（前20个比特） 采用DPSK及延时差分相干解调，载波频率为10倍比特率，画出a, b, c, d点的波形（前10个比特） DPSK及延时差分相干解调，载波频率为10.25倍比特率时，画出a, b, c, d点的波形（前10个比特） DPSK及延时差分相干解调，载波频率为10.5倍比特率时，画出a, b, c, d点的波形（前10个比特） (Produce random binary sequence of length 100 The transmission carrier frequency is 10 times the bit rate, draw a sampling rate of 100 times the symbol rate of the BPSK modulation waveform (first 10 bits), its power spectrum Coherent demodulation of assuming the same as the phase of the transmitting and receiving frequencies, and draw the waveform x (t), assuming that the impulse response of the low pass filter 10 consecutive 1 (the remainder is 0), or 12 consecutive 1 (the remainder is 0), y (t) is drawn under the two filters respectively, and the decision output (10 bits) The received carrier frequency is 10.05 times the bit rate, the same initial phase, draw the waveform x (t), assuming that the impulse response of the low pass filter of 10 consecutive 1, shown under two filter y (t), and decision output (20 bits) DPSK and delay differential coherent demodulation, the carrier frequency is 10 times the bit rate, draw a, b, c, d point of the waveform (first 10 bits) DPSK and delay)

this files in Quartus2 are fulladder

使用DE2实现DDS，步骤简单，配置管脚可自查看(Using DE2 to realize DDS, the steps are simple and the pins can be self-checked.)

verilog代码，串口发送接收代码，含有源代码和测试文件，准确可用(verilog code for serial port transmit and receive code, with source code and test files, and accurate available)

I2C总线控制器 altera提供的VHDL的源程序代码-I2C Bus Controller ALTERA the VHDL source code