Verilog数控分频器的设计

篮球24s计时。计时器递减计数到零时，数码显示器显示‘0’并停止，同时发出报警信号(basketball 24 seconds)

verilog开发FPGA，实现RS485串口通信(RS485 driver for FPGA )

在FPGA硬件上，使用verilog语言编写的一个乘累加器程序。(FPGA hardware, a multiply accumulator verilog language program.)

支持{addu、subu、lui、ori、jal、jr、lw、sw、nop}指令集的单周期CPU，verilog硬件描述语言实现(Support {addu, subu, lui, ori, jal, jr, lw, sw, nop} instruction set of one-cycle CPU, Verilog hardware description language implementation)

如上图所示， Rst是低电平有效的系统复位信号，Clk是时钟信号。AB[5：0]是地址信号，DB[7：0]是数据信号，wr是低电平有效的写信号。start是启动信号。 模块中有一个64x8的双端口的存储器。系统复位结束后，可以通过AB、DB和wr信号向同步存储器写入数据。当写入64个数据后，给出一个Clk周期宽度的脉冲信号start，则系统从存储器0地址处开始读出数据，读出的8位数据从低位开始以3位为一组，每个时钟周期输出一组，即第一个时钟周期输出[2：0]位，第二个时钟周期输出[5：3]位，第三个周期输出1地址的[0]位和0地址的[7：6]位，直至将存储器中64x8数据全部输出。若最后一组不足三位，则高位补0。 (As shown above, Rst is an active-low system reset signal, Clk is a clock signal. AB [5: 0] is the address signal, DB [7: 0] is the data signal, wr write signal is active low. start is the start signal. Module in a dual port memory of 64x8. After the reset, you can write data to the synchronous memory by AB, DB and wr signals. When data is written to 64, given the width of a pulse signal Clk cycle start, the system begins to read the memory address 0, 8 data read out a low starting with three as a group, each clock outputs a set period, which is the first clock cycle of the output [2: 0] bits, the second clock cycle output [5: 3] position, the third cycle of the output of an address [0] and 0 address [7 : 6] bit, until all the data in memory 64x8 output. If the last group of less than three, the high 0s.)

FPGA做VGA视频显示的详细资料，我找了很久才收集起的，有四篇文章，很有用(FPGA do VGA video display detailed information, I found a long time before they start collecting, with four articles, very useful)

仲裁者 AHB 泛型代码。与任何 AHB 设计的工作。 它将支持两个拆分和重试交易以及。 它将支持达 9 大师，它可以通过改变参数值在测试工作台中的改变了。 它叉骨界面 also.one 可以连接此代码到任何协议通过改变议定书 》 的要求。

基于FPGA的TLC2543控制器,采用状态进行控制ADC进行转换(The TLC2543 controller based on FPGA, using state control of ADC conversion)

The AGC is a smart programmable gain amplifier (PGA). The amplifier gain is adjusted based upon the input signal level so that the output is at a specified Target Gain. The AGC can be configured to be either a mono or stereo input / output component. For illustration purposes, the following discussion will highlight the stereo configuration.

串口通信例程，使用FIFO数据缓存。Verilog源码，基于FPGA的uart开发，加深理解。(uart communication)