它的译码器的VHDL程序

用Verilog编写ad_9866的相应程序，在FPGA上实现相应功能(The corresponding program of ad_9866 is written with Verilog, and the corresponding functions are realized on the FPGA.)

verilog实现的“BCD/七段译码器”。-verilog implementation " BCD/Seven-Segment Decoder."

用流水线的方法实现16位乘法器，运算速度快，消耗时钟资源少(Pipeline method to realize 16-bit multiplier, which is fast in operation and consumes less clock resources)

-- M68008 Address Decoder -- Address decoder for the m68008 -- asbar must be 0 to enable any output -- csbar(0) : X"00000" to X"01FFF" -- csbar(1) : X"40000" to X"43FFF" -- csbar(2) : X"08000" to X"0AFFF" -- csbar(3) : X"E0000" to X"E01FF" -- download from www.pld.com.cn & www.fpga.com.cn --- M68008 Address Decoder-- Address decod er for the m68008-- 0 asbar must be to enable any o utput-- csbar (0) : X "00000" to X "01FFF"-- csbar (1) : X "40000" to X "43FFF"-- csbar (2) : X "08000" to X "0AFFF"-- csbar (3) : X "E0000" to X "E01FF"-- download from www.pld. com.cn

SHIFT_8REG是8位的一个具有移位功能的寄存器，每一次数据打入都会从这个寄存器的最低位打入，并相应进行向左移位。 ODD_110BREG是一个3位的备份寄存器，寄存器中存放的是奇数帧的同步头，也就是110。 EVEN_9BHREG是一个8位的备份寄存器，寄存器中存放的是偶数帧的同步头，也就是10011011。这两个寄存器的初始值在系统一开始就打入。 -SHIFT_8REG is eight with a displacement of the functional Register, Each will enter the data from the register into the lowest point, and the left shift accordingly. ODD_110BREG is a three backup Register, the Register is stored in the odd frame synchronization head, is 110. EVEN_9BHREG 8 is a backup Register, which register is kept even the first frame synchronization, is 10011011. This register the two initial value of the system into a start.

FPGA上的一个半加器实例程序，通过测试，可以直接运行在fpga开发板上。(One and a half adder example on FPGA program, through the test, can be run directly on the FPGA development board)

伽罗华域的乘法器的设计，使用有限域设计乘法器(Galois field multiplier design, the use of finite field multiplier design)

数字电路点阵赛车，分为开始前5秒倒计时，59秒计时，赛车显示，赛道显示，失败提示，成功提示，移动控制以及总控制等8个模块。实现由3个开关控制点阵赛车在设置好的赛道中前进或左右移动。

异步FIFO的实现，很经典的三段式状态机的写法。(The realization of the asynchronous FIFO, very classic three-step writing state machine.)

verilog hdl verilog hdl verilog hdl-verilog hdl