Whenever you want to use an output signal internally, you will always need to generate an internal signal, something like: architecture behaviorial of foo is signal status_i : status_t; begin status Well, that's important to know. Add Stickiness To Your Site By Linking To This Professionally Managed Technical Forum.Just copy and paste the BBCode HTML Markdown MediaWiki reStructuredText code below into your site. VHDL Forum at I'm going to make this a fairly generic question because I'm not so sure the details matter too much. this contact form
Select 2D data in a certain range On 1941 Dec 7, could Japan have destroyed the Panama Canal instead of Pearl Harbor in a surprise attack? Zeichnungen und Screenshots im PNG- oderGIF-Format hochladen. I learn something every day.. entity controller_entity is generic( entryCount : positive := 2; ....); port( clk : in std_logic; ....
Ignore it. 'status' is driven (by the output of the procedure), so there is no 'read' done on it. If they do, I'll happily post what I can. Welcome to the Coding Forums, the place to chat about anything related to programming and coding languages.
Yes, my password is: Forgot your password? You can, however read from an inout port, or a buffer (though support for a buffer signal is a little sketchy). Tim Youngblood Clean Power for Every IC, Part 2: Choosing and Using Your Bypass Capacitors Proper component selection and careful PCB layout are integral to power supply bypassing. Ignore it. 'status' is driven (by the output of the procedure), so there is no 'read' done on it.
Resend activation? Autor: Duke Scarring (Gast) Datum: 18.11.2010 12:38 Bewertung 0 ▲ lesenswert ▼ nicht lesenswert Volker G. Teardown Videos Datasheets Advanced Search Forum Digital Design and Embedded Programming PLD, SPLD, GAL, CPLD, FPGA Design [SOLVED] vhdl output cannot be read + Post New Thread Results 1 to http://stackoverflow.com/questions/18047503/vhdl-output-is-undifined-in-simulation-but-compilation-is-passed-fine All 3 components I have built work great but when I put them together one of the the outputs stays undefined.
more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Attached Images CropperCapture.bmp (604.3 KB, 15 views) Reply With Quote April 24th, 2013,02:12 PM #4 Tricky View Profile View Forum Posts Moderator **Forum Master** Join Date Oct 2008 Posts 5,137 Rep If I change entity signal status to > inout type, it compiles but that isn't what I want. The OK or FAIL column Is there any known limit for how many dice RPG players are comfortable adding up?
Is there a reason you are putting a procedure() in the reset portion of the process? https://groups.google.com/d/topic/comp.arch.fpga/EYpvdoWF_Co Wichtige Regeln - erst lesen, dann posten! No, create an account now. No, create an account now.
walala, Sep 12, 2003, in forum: VHDL Replies: 1 Views: 888 Kai Harrekilde-Petersen Sep 12, 2003 How to perform a timing simulation in Modelsim with QuartusII output file ? http://sauvblog.com/cannot-read/cannot-read-usr.html schrieb: > Cannot read output "data_out_to_buffer". It is not Modelsim generating the bogus warning, it is his synthesis tool, whatever that is. Lost password?
But the suggestion to copy the signal is reasonable for clarity, though. 9th June 2012,10:11 9th June 2012,13:54 #4 BACK Newbie level 6 Join Date Jun 2010 Posts 11 Perhaps the error message comes from something else or my verror list is inaccurate. By the way, I guess I did not explicitly point out the reason why you are getting the above warning. navigate here car_passed: out std_logic --Output to higher level ); end component; begin CREATE_ENTRANCES: for i in 0 to entryCount-1 generate entryi: entry port map ( clk => clk, -- ....
Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Groß- und Kleinschreibung verwenden Längeren Sourcecode nicht im Text einfügen, sondern als Dateianhang Formatierung (mehr Informationen...) [c]C-Code[/c] [avrasm]AVR-Assembler-Code[/avrasm] [vhdl]VHDL-Code[/vhdl] [code]Code in anderen Sprachen, ASCII-Zeichnungen[/code] [math]Formel in LaTeX-Syntax[/math] [[Titel]] - Link zu Well, I have to ignore the warning or replace the procedure with procedure body's code.
Which one ? > > Well, after adding this to the sensitivity list I've got the error: > Cannot read output "status". This has nothing to do with Modelsim. ALuPin, May 10, 2004, in forum: VHDL Replies: 13 Views: 7,471 mouna Nov 27, 2008 How to obtain original input/output signal name from SDF Timing Simulation within Modelsim? There are several possibilities.
All simulation/synthesis tools will do the same. Join your peers on the Internet's largest technical computer professional community.It's easy to join and it's free. How Did The Dred Scott Decision Contribute to the Civil War? his comment is here Outputs cannot be read.
Any "source" signal in a non-clocked portion of a process needs to be in the sensitivity list. ModelSim does not issue synthesis warnings, so this is from a synthesis tool. In my code > the recod is more complex. In my code > the recod is more complex.
You wrote, output signals can not be read. You wrote, output signals can not be read. The two architectures are mutually exclusive, and the last one analyzed is the default in absence of other configuration specifying one of the architectures directly. Until now, I've never confused on that (in and out of entities/procedures).
end architecture controller_v1; And this design specification analyzes, elaborates and simulates with a different VHDL tool 'compliant' to IEEE Std 1076-1993. You didn't do this, so don't worry about it. You may have to register before you can post: click the register link above to proceed. Here's a snippet of the code.
Cannot read output ERROR mit ModelSim- warum? This internal signal may then be read internally. Chao, Jun 10, 2004, in forum: VHDL Replies: 4 Views: 2,211 Mike Treseler Jun 14, 2004 is there any way to convert modelsim wave output to text file? In my code the recod is more complex.