以VHDL为第一通用代码的N位加法器

说明：  access must be conf urr arr

三相电流滞环跟踪PWM逆变器。逆变电路负载电流与指令电流比较产生PWM波形。经验证可很好实现功能。(The three-phase hysteresis current tracking PWM inverter. Load current command current of the inverter circuit generating a PWM waveform. Proven functions well.)

给出了SVPWM算法的详细FPGA实现方法！(A detailed FPGA SVPWM algorithm to achieve the method!)

fpga正弦波发生函数，可用于自动生成rom文件(fpga sine wave generating function)

用VHDL语言设计四位全加器，有低位进位和高位进位。-VHDL language with four full-adder design, there are low and the high binary binary.

若农场路无车辆，则在高速路保持绿灯。在探测农场路有车辆，高速路上的交通灯应由绿到黄，再到红，并允许农场路方向灯变绿，绿灯亮一段时间，由绿变黄再到红。(If there is no vehicle on the farm road, keep the green light on the highway. There are vehicles on the farm road, the traffic lights on the high speed road should be green to yellow, and then red, and allow the farm road lights to turn green, the green light for a period of time, from green to yellow, then to red.)

两位独立数码管100进制计数器，每1秒计数一次。从0到99，到99后又回到0.-Two independent 100-band digital tube counters, every time 1 seconds count. From 0 to 99, to 99 and then back to 0.

用FPGA实现DDS的原理图，结构清晰，采用总线方式与外部单片机通信-FPGA realization of DDS with the schematic diagram, structural clarity, the use of bus-way communication with the outside Singlechip

FPGA设计的指导原则，很经典的！希望给大家方便-FPGA design of the guiding principles, it is classic! Want to give everyone easy

说明：  verilog 编写的ldpc编码，含有两个文件(LDPC written by Verilog)