在这个示例中,我们定义了两个宏WIDTH和PI,并在模块example中使用了它们。随后,我们使用undef指令取消了这两个宏的定义。 5. undef在Verilog中的适用性 undef在Verilog中是适用的,并且经常用于取消不再需要的宏定义,以避免潜在的宏替换错误。然而,如果宏在整个设计中都被广泛使用,取消定义可能会导致大量的编译错误。在...
SystemVerilog Parameters Parameter Parameter example Parameter redefinition `define Macro There are two ways to define constants: parameter `define Parameter Parameters must be defined within module boundaries using the keyword parameter. A parameter is a constant that is local to a module that can op...
How do I define Verilog macros in XST and Project Navigator? Solution There are several ways to define macro or use include file for XST in Project Navigator. Use the -define option in XST command line mode. Place the values inside {braces). Separate each macro with spaces. Example: -defi...
In reply to vdadwal: I prefer to use the term macro argument. A parameter is something else in Verilog. In the macro, R by itself is the argument that gets substituted. R is not needed. However, the argument I shows up twice in the body of the macro; first by itself, and then su...
159 159 // UART module from https://github.com/alexforencich/verilog-uart (DOES NOT WORK ON OPENXC7, UberDDR3 cannot finish calibration when this UART is used) example_demo/arty_s7/arty_ddr3.xdc +3-1 Original file line numberDiff line numberDiff line change @@ -260,6 +260...
(Just to be clear, I know this simple example here won't produce anything useful. Its just to illustrate my problem. Thanks) error (10161): verilog hdl error at def.v(12): object "high" is not declared This is the code in def.v: `define HIGH 1'h1 `define LOW 1'...
Example at Figure 1. "Divide by 2 Generated Clock" ( create_generated_clock_ex1.qar (http://www.altera.com/support/examples/download/create_generated_clock_ex1.qar) ) in the above mentioned Altera document http://www.altera.com/support/examples/timequest/exm-t...
A user-define method is proposed in this paper, to help the designer improve the quality of products and shorten the development term. It solves some special coding rule checking problems. The method is implemented by means of Cadence HAL software, Using Verilog procedural interface (VPI) to ...
This confirms the model in the manual is ok. Do not run libcomp on Tessent Cell models (or your versions of them). I think this is your question. The libcomp command converts a library of verilog modules into a library of Tessent Cell models. If you are making your own Tessent Cell...
In C/C++ compilers, there are predefined macros which contain a version number/string ( example: __STDC_VERSION__ ) This enables source-code to enforce minimum version-checks (in some cases.) Is there something similar irun, so my Systemveirlog-source files can check for a minimum version...