vhdl adder with two input 4

一个实用的uart协议模块，使用verilog 实现(A practical uart protocol modules, use verilog to achieve)

说明：  使用vivado和Xilinx开发板实现抢答器，开发板为Xilinx Artix-7(Using vivado and Xilinx development board to achieve the responder, the development board is Xilinx artix-7)

利用FPGA，产生三相SPWM波，与后继硬件电路配合，形成三相电源。高效，实用。(Using FPGA, produce three-phase SPWM wave, with subsequent hardware circuit with the formation of three-phase power. Efficient and practical.)

Demo program for use UART STM8S

ALTERA Cyclone1C20 Nios开发板，protel99格式-ALTERA Cyclone1C20 Nios，protel99

本程序是锁相环的仿真程序，具有接收端载波同步的功能。注释详尽，程序规范。发端的调制方式有单载波调制，BPSK调制，QPSK调制可供选择。程序中有星座图，锁相环的频差、相差图，以及解调后的基带波形。(This program is a phase-locked loop simulation program, the with carrier synchronization receiving end function. Notes detailed program specifications. The originator of the modulation scheme to choose a single carrier modulation, BPSK modulation, QPSK modulation. Program constellation diagram, the PLL frequency difference, a difference of FIG, and the demodulated baseband waveform.)

四位拨妞开关作为输入，当输入值变化时将其转化成两位输出(The four DIP Niu switch as an input, when the input value changes, be converted into two output)

微功率无线模块、小功率无线数传模块、远距离无线通信模块、数传电台、远距离无线通信基站以及无线通信收发器等系列产品，产品主要有无线数传模块、无线通信模块、无线通讯模块、无线收发模块、无线模块、无线射频模块等等。-micropower wireless modules, low-power wireless module, remote wireless communications modules, data-transmission stations, long-distance wireless communications base stations and wireless communications transceiver series products, the main products are wireless module, wireless communications modules, wireless communications modules, wireless transceiver module, wireless modules, RF modules and so on.

基于数码管独立显示和三色灯的交通指示系统设计(Design of Traffic Indicator System Based on Digital Tube Independent Display and Tri-color Lamp)

说明：  掌握SDRAM数据读写、刷新、初始化以及FPGA串口收发时序，熟练FIFO IP核的生成和调用。(Master SDRAM data read and write, refresh, initialization and the timing of sending and receiving of the serial port of the FPGA, skilled in the generation and invocation of the FIFO IP core.)