A testbench is simply a Verilog module. But it is different from the Verilog code we write for a DUT. Since the DUT’s Verilog code is what we use for planning our hardware, it must be synthesizable. Whereas, a testbench module need not be synthesizable. We just need to simulate it ...
Hello floretw, the code you have written has static no' of states before elaboration itself, and there is no variable where no' of states depends upon. I require the syntax how to write a state machine where inside states should generate using for loop or generate. The variable to g...
这个程序看起来没什么问题,在我开始学习Verilog的时候,最正规的写法也是这样的,可是在接下来的操作,例如行为仿真的时候,出现如下错误提示: 也即, redeclaration of ansi port ClkOut is not allowed [G:/Vivado_file/Two_frequency_division/Two_frequency_division.srcs/sources_1/new/top.v:28] 不允许重新声明ans...
Hi guys I want to read data from a sdram memory. I'm using vivado and kintex7. I changed the xdc file according my board. but I received this errors...
we try to move the piece in the specified direction, or rotate it. For that, we first check whether the moved-or-rotated piece can fit in the position the command wants it to be in. If it cannot fit, we lock the piece in the field /* write a shape-specific values in thefieldvar...
80% if what I do is VHDL and, because you can write very terse and obscure Verilog my headaches generally come from Verilog code written by people who like to impress themselves with their Verilog knowledge. If you spend any significant length of time doing FPGA development you will ...
A fantastic free resource that all FPGA front end developers need to be aware of is “fizzim”. It is a tool that automatically writes VHDL/Verilog code for your state machine provided that you draw the state machine for the tool.
. . . Initialize RAM banks in RAM System blocks with unique initial values for vector data inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Write to RAM in columns of data using column-write operations in RAM ...
I can't quite read the examples you posted. In any case, we're using Parameterized SystemVerilog interfaces now in Vivado. We're still tweaking our use-cases - the latest release of Vivado (2015.3) is supposed to include some better support.
例如Verilator就会出现与Xilinx Vivado的VSim对于同一Verilog代码仿真出不同行为的情况,主要解决方案是要仿真器的开发要与逻辑综合工具紧密结合。 图10 Synopsys VCS中的仿真事件队列 (Event Queue) 2.3.2 形式化验证(Formal Verification) 从定义上说,形式化验证的目的是【从理论上证明】某些设计的实际功能完全与设计...