FPGA实现1Gb以太网

CPFSK Demodulation Techniques

vhdl八位十进制数字频率计的设计，顶层和数码管扫描模块(vhdl eight decimal digital frequency meter design, top-level and digital tube scanning module)

八阶巴特沃兹iir数字滤波器，四个二阶节，verilog代码实现，多路分时复用(batterworth，iir，8order，four second order section)

1、PC和寄存器组使用时钟触发。 2、指令存储器和数据存储器存储单元宽度一律使用8位，即一个字节的存储单位。 3、控制器部分可以考虑用控制信号真值表方法（有共性部分）与用case语句方法逐个产生各指令其它控制信号相配合，注意：信号必须与状态配合。。当然，还可以用其它方法，自己考虑。 4、试用的汇编程序，而且必须包含所要求的所有指令。Slt、sltu指令必须检查两种情况：“小于”和“大于等于”；beq、bne指令必须检查两种情况：“等”和“不等”。这段汇编程序必须尽量优化，同时，给出每条指令在内存中的地址。(1, PC and register groups are clocked. 2, the command memory and data memory storage unit width will use 8 bits, that is, a byte storage unit. 3, the controller part can be considered with the control signal truth table method (common part) and with the case statement method to produce each command other control signal match, Note: the signal must be with the state. The Of course, you can also use other methods to consider their own. 4, try the assembler, and must contain all the required instructions. Slt, sltu instruction must check two cases: "less than" and "greater than or equal to"; beq, bne instruction must check two cases: "wait" and "unequal". This assembler must be optimized as much as possible, giving the address of each instruction in memory.)

这是一些小代码的集合 希望能对大家有所帮助(This is a collection of some small code for all of us hope to be helpful)

IRIG_B解码器，直接解码IRIG_B DC(IRIG_B decoder)

verilog source code for SD card SLAVE DEVICE IP-Core

说明：  基于FPGA的CAN总线控制器，VERILOGHDL源代码，Q2仿真实现。可用。(FPGA-based CAN Bus Controller, VERILOGHDL source code, Q2 Simulation. Available.)

说明：  sd_sdram_lcd 是读取SD卡中的数据，然后通过LCD显示(It is to read the data in SD card and display it by LCD)

使用verilog HDL写的sdram(SDR)的控制器源代码，具有很好的可移植性，试验的例子已经通过QuartusII 9.0编译通过，可以运行在cycloneII上(Controller source code using verilog HDL written in the sdram (SDR), has good portability, test examples via the QuartusII 9.0 compiler, you can run in cycloneII)