西北逻辑 （Altera） 特别提款权 SDRAM 控制器

对锁相环路的仿真，二阶环的仿真与分析都可以通过这个文件来到完成(Simulation of PLL, second-order loop simulation and analysis can be completed by the adoption of the document came)

说明：  ds1302时钟驱动程序，已在quartus上验证可以是直接使用(DS1302 clock driver, which has been verified on quartus, can be used directly)

此vhdl程序实现了在FPGA上构建UART通信串口。分为两部分，UART的发送端transfer和接收端receiver。需要外部根据需求提供波特率时钟。(This program implements the building vhdl UART serial interface on the FPGA. Divided into two parts, UART transfer sender and receiver receiver. Required to provide the baud clock external demand.)

32-bit Wishbone Interface • DMA • Buffer Descriptor • Compliant with SD Host Controller Spec version 2.0 • Support SD 4-bit mode • Interrupt-on-completion of Data and Command transmission • Write/Read FIFO with variable size • Internal implementation of CRC16 for data lines and CRC7 for command line Wishbine 总线使用。完整的SD卡控制器，支持文件系统，高速传输。

说明：  MATLAB的SIMULINK和FPGA联合设计滤波器等，摆脱了传统的代码设计。(MATLAB's SIMULINK and FPGA jointly design filters and so on, and get rid of the traditional code design.)

Verilog实现的udp协议，比网络上的资源更加丰富，想要了解altera tse相关源码，就大胆下载吧，给你想要的一切。

采用双线性变换法设计IIR数字滤波器设计的c代码，包括低通、高通和带通(Document recording the design of IIR digital filter c code)

多件键盘键值向上位机串口输出，接受并执行上位机串口的控制，串口使用ASCII码传输，串口逻辑控制逻辑按键去抖均采用Verilog实现。读此代码可以理解串口收发逻辑、键盘去抖、串口控制逻辑，相信对业内人士有所帮助，内附ASCII与HEX换算表

载波同步的verilog代码，是新手学习同步的最佳选择，值得推荐。(Verilog code carrier synchronization, synchronization is the best choice for novices to learn, it is worth recommending.)

说明：  简单的单周期CPU设计，实现的指令有：算术运算指令、逻辑运算指令、移位指令、比较指令、存储器读/写指令、分支指令、跳转指令、停机指令。(Simple single-cycle CPU design,The instructions implemented are as follows:Arithmetic operation instruction, logical operation instruction, shift instruction, comparison instruction, memory read/write instruction, branch instruction, jump instruction, stop instruction.)