process is variable a_var, b_var : std_logic ? begin wait until ( rising_edge ( clk ) ); a_var := x开发者_开发问答 or y ;
I have a big design that includes a test-bench, some testing circuit and the circuit under test itself.
My first question :I wonder how you compile your vhdl file under ghdl ? In c/c++, we use -Werror -Wunused-variable
In VHDL, is initialization necessary when creating a signal or a vector? What happens if one forgets to initializ开发者_Go百科e a signal or integer value?In simulation, if you do not set an initial v
I have used below statement, frequently. However, I wonder if ( clock\'event and clock = \'1\' ) then
I have Xilinx ISE 13.1 installed on an ACER laptop with Win7 (64bit). After installing the software (WebPACK version) I created an empty VHDL module and ran \"check syntax\". The process failed with
Assume I have this simple core with generics as genertest.vhd: --------------------------------------------------------------------------
By Using cosmiac tutorial 13 http://www.cosmiac.org/tutorial_13.html and ISE 10.1 the pdf file shows how to generate an image and you can download the project by clicking the first .zip file. At the e
i want to define an input with 2D array in an entity how can i make th开发者_Go百科at i tried to define a d input by this code
I have never initialized signals. That way any signal missing a reset or assignment would be unknown or initialized. In some reference code they have initialization. 开发者_运维技巧This defeats what I
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