FPGA实现SPI通信

这是用Verilog写的RS485通信程序，可以使用，希望大家能够互相交流，(This is a Verilog writing RS485 communication program, can be used, I hope we can communicate with each other,)

使用CycloneIV芯片，实现对高精度ADCad9226的数据采集。内有详细代码说明，并附有调试结果(Use CycloneIV, to achieve high-precision data acquisition ADCad9226. Along with debugging results)

关于SPWM调制设计VHDL代码 关于SPWM调制设计VHDL代码(SPWM modulation on the design of VHDL code design on the VHDL code modulation SPWM)

字长可以简单调整，即可实现任意字长UART通讯(The word length can be simply adjusted to achieve any word length UART communication.)

我们的设计是用一个FSM控制器来控制发送什么命令，flash模块判断FSM发送过来的state信号来选择应该执行什么操作，当命令写入或者读出后，会发送一个flag_done命令，这个命令让我们判断上个指令是否完成，如果完成后FAM将发送下一个命令.(Our design uses a FSM controller to control what commands are sent. The flash module judges the state signal sent by the FSM to select what operation should be performed. When the command is written or read out, a flag_done command is sent. This command lets us judge whether the last word is finished or if the FAM will be sent after completion. The next command)

包含32为乘法器的设计，用verilog语言实现，包括booth编码的实现，booth乘法器的实现，3_2压缩器的实现，4_2压缩器的实现，华伦斯树的实现，以及两个testbench文件用于测试。(Contains 32 multiplier design, verilog language, including booth encoding implementations, booth multiplier implementations, 3_2 compressor implementation 4_2 compressor to achieve and realize China Clarence tree, and two testbench file with the to the test.)

一个简单的FM调制模块，FM发射，用Verilog编写，基于Xilinx SPARTAN6 XC6LX9开发(A simple FM modulation modules for FM transmitter, using Verilog prepared, based on XILINX SPARTAN6 XC6LX9 Development)

1、FSMC全称是静态存储控制器，用来高速操作外部SRAM，NOR，NAND等，广泛用来驱动LCD MCU的FSMC配置在fsmc_nor.c，你也可以查阅相关资料。 2、此例程通过读写外部M29W128，熟悉FSMC的配置以及操作。(1, FSMC stands for static memory controller for high-speed operation of external SRAM, NOR, NAND, widely used to drive the LCD MCU FSMC configuration in fsmc_nor.c, you can also access to relevant information. This routine by reading and writing external M29W128 familiar with the configuration and the operation of the FSMC.)

FPGA implementation of simple Multi-tone Electronic Keyboard using DE2-115 board with a PS/2 keyboard and speaker

基于VHDL语言，实现对ADC0809简单控制(Based on VHDL language, to achieve the ADC0809 simple control)