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Hi Shiva: Thanks for the reply. Here is the code I used for reading values from file into an array. This process is similar to an example from Designer's guide to vhdl (By Peter Ashenden). I'm not sure as to where the problem is.Please help me out with this. process type Y_array is array (1 to 2,1 to 2) of integer; vari
I use modelsim in vhdl design. I want to call data from fetalint.txt. my code is use std.textio.all; file infile: text is in "fetalint.txt"; variable ip1: integer range -4096 to 4095; variable buf: line; process begin while not(endfile(infile)) loop readline(infile,buf); read(buf,ip1); W_data<=ip1; wait until falling_edge(W_clock
Textio is d keyword.. :) TEXTIO is a package of vhdl functions that read and write text make the package visible: use std.textio.all; Data Types: text - a file of character strings line - one string from a text file Example Declarations file Prog: text is in "file_name"; --text file "file_name" variable L: line
in vhdl every thing is in binary, you cannot have a data type which can store hex. so when you will read from a file using something like variable l1 : line; variable var1 : std_logic_vector(7 downto 0); . . readline(f1,l1); --read a line from a file f1 which contains hex words example FE hread(var1,l1); -- read into var1, a hex val
sure!! i assume that you want to use this for a testbench or some simulation purpose only. add the textio package from synopsis into your project directory from the path i told you before. compile it . to understand how to use these hread, hwrite etc procedure in your code you can simply open the package file and understand its input and output
Hi, -- extra packages: library std; use std.textio.all; use ieee.std_logic_textio.all; -- file declaration (vhdl 93 syntax) in architecture: file fin : text open read_mode is "c:/temp/input_file.txt"; -- read file contents somewhere in process: process.... variable inp_line : line; begin --- while not endfile (fin) loop readline(
HI all Is the below code snippet for file reading is fine. I am not able to open this file, so please correct the code. I am newbie to vhdl. procedure PrepareInput is VARIABLE inLine : LINE; VARIABLE dataRead : REAL; VARIABLE index : integer:= 0; file file_in : text open read_mode is "lena_64_64.txt";
HI all, I am facing problems with file reading in vhdl. I am newbie to vhdl. I am expecting answers. Here is the code and error message I have got. *********************** procedure PrepareInput is variable inLIne: line; variable int_text : integer:= 0; variable index : integer:= 0; --file file_in : text open read_
Hi all, How to read a 24 bit bmp file in vhdl. This is the code I have written. Here also exit when endfile is needed na???? *********************** procedure bmp_read is variable inline: line; variable b:character; variable g:character; variable r:character; variable end_of_line:boolean; type char_file is file of char
Hi Haneet, Something like: library ieee; use ieee.std_logic_textio.all; library std; use std.textio.all; architecture xxxx of yyyy is file fin : text open read_mode is ""; process(zzzz) variable rdline : line variable hex : std_logic_vector(3 downto 0); begin while not endfile(fin) loop readline(fin, rdli
while not endfile(loaddata) loop readline(loaddata,adline); read(adline,advalue); end loop; If there is more than one data line in your file, it's ignored except for the last one that's stored in advalue. So the observed behaviour is pretty understandable.
Does Xilinx XST support vhdl textio library for synthesized code? Most likely not. P.S.: If it's for a simulation test bench, the sequence would be for i in ar'range loop readline(f, inline); read(inline, ar(i)); end loop;
hi i want to know how many characters does a readline command reads. is it full one line or is there any limitation for it.?????????
there is no way to do this easily in vhdl. vhdl is not set up to do File io nicely other than text. What file are you trying to read? For every file you can use the ENDFILE() function to see if you have reached the end of a file: eg. while not ENDFILE(my_file) loop readline(file, inline); ...etc end loop; You could use this lo
Here's an example that reads a single stimulus vector (representing an analog waveform) line by line. You can easily extend it to read additional values and possibly write output data to a second file. Process file IN_DAT : text open read_mode is "scope.txt"; variable LI: line; variable MV: integer; Begin while not
Hi! I want to read two integer values from a .txt file named "entry.txt", which is located in the project folder, with all of the .vhd files. -- ... variable inline : line; file inputFile : text open read_mode is "entry.txt"; variable mynum: integer; variable stdmynum: std_logic_vector (N-1 downto 0); -- ... readline(inputF
the readline(file, line) procedure reads an entire line from a text file. You then use read(dest, line) to extract elements from that line. - - - Updated - - - Or, to make our lives a little easier, post the code that doesnt work and ask some good questions.
I am not familiar with ASIC design flow, maybe somebody else can give some valuable comments.... For FPGA design, what I have used synthesis tools(only to synthesis vhdl code): Synplicity Synplify > Synopsys FPGA Compiler II > Mentor Leonardo Exemplar It is only my personal opinion...
If you want an audio interactive tutor to learn Verilog or vhdl.. I did upload it for someone who did ask me... ES PERAN Verilog & vhdl. If you are interested let me know Kind regards.
I am a student from Harbin China. Now I am building a behavioral model of a Direct Sequence Spread Spectrum Communication system using vhdl-AMS. So i want to know where can I find some example similar to that or something that may give help to me. Can you give me some advices. Thank you! [ This Message was edited by: flybear on
Hi vhdl QUICK Reference Guide Ready for onboard prints tnx Uploaded file: vhdlref.pdf
where to get test bench with vhdl for SDH chip?
Hi The vhdl Golden Reference Guide A 136 pps ebook. tnx Uploaded file: vhdl-golden-reference.pdf ************************************************************** Please don't reply unless you have useful information to add on this post. Thanks ! (No Me-too's, no Thanks-you's, etc ... use
Hi Here is the vhdl code for 8051 MC. tnx Uploaded file: 8051 in
Hi LEON is a synthesisable vhdl model of a 32-bit SPARC* compatible processor, developed by the European Space Agency (ESA) for future space missions. To promote the SPARC architecture and enable development of system-on-a-chip (SOC) devices using SPARC cores, ESA is making the full source code freely available under the GNU LGPL license. LEON
Hi vhdl Language reference manual. latest edition. regards _________________ ***************************************** Please don't reply unless you have useful information to add on this post. Any other replies are always welcome via PM. ***************************************** [ This Message was edited by: KARLZ on
Hi Online vhdl Testbench Generator 1. TestBench Tool 3. -> t tnx
Hi These materials are made available for ECE 4170: Introduction to HDLs with Applications to Digital Design taught during the Spring 2000 Semester at Georgia Tech. This text focuses on presenting the basic features of the vhdl language in the context of its use for both simulation and synthesis. Basic language concepts are motivated by fami
Anyone interested in a single entity vhdl testbench generator, try this. Code is free to do with as you wish. If you add significant enhancements, please send me a new copy too. You will need to have Tcl/Tk installed on you system to use this. Uploaded file: tb_gen.tcl
Hi Would you please upload IEEE Standards for verilog and vhdl to this place. NOTE!!!!: 1. If you have uploaded files in some other boards, please leave a URL pointer only. 2. Please rename the files before uploading by the a definitive words to distingush files from each other. It seems that the forum replaces every newer file with
Which most prefer or popular? vhdl or Verilog?
Anyone has a DSP core in vhdl or Verilog? Prefer TI but anyone will do. ASIC
Would anyone share the RS232 vhdl code ? If you have RS232 test program , please share. Thanks a lot.
Please suggest good books in this thread for vhdl/Verilog ASIC design Thanks,
Hi Tutorials for vhdl and Verilog. HDL Synthesis for FPGAs: Design Guide (PDF 2MB) SystemC -- Technical Papers Cypress: Programmable Logic: vhdl Page Cypress: Design Resources : Technical Articles Logic Synthesis with vhdl System Synthesis vhdl SYNTHESIS TUTORIAL vhdl Coding Style manual (...)
signal rd,dr : std_logic; ad_bus,ram_bus : inout; :cry: 1. process(rd) ---- right. begin if (rd='0' and dr='1') then ad_bus_out<=ram_bus; else ad_bus_out<="ZZZZZZZZ"; end if; ad_bus<=ad_bus_out; end process; 2. process(rd) ---- error. begin if (rd='0') then if dr='1' then
Hi This object of this course is to introduce the student to more of the vhdl modeling language than what has been covered in previous courses. 1. -> t tnx
Hi P1076.2 P1076.3 P1076.4 ieee_1164 mathpack synopsys 1. -> t tnx
Hi 1. -> t tnx
hi all is there any software which convert matlab code to vhdl? how can i get it? best regards baa110
Hi, everybody, I am seeking cache controller vhdl example, I hope some good guy can give me hint or tell me where I can find it. It is better a standalone module, simple. Thanks :P
here is a link to comp.lang.vhdl newsgroup about the necessary of the sensitivity list. very interesting. :arrow:
Can any body help me if you have vhdl code for BFSK or even clear flowchart Thanks
hi,all Is it possible that Vera work with NC-verilog/vhdl ?
Hi guys! I need tha vhdl of the PCI LogiCORE interface from Xilinx.. could you help me??? Tnx a lot LEron
Hi Check for updates and fine resources especially on: Microprocessors/MCUs 1. -> t tnx
Hi 1. -> t tnx
Hi Here is the pdf explains the efficient coding style in the vrilog hdl :P
all, I am a newbie when it comes to making a clone of an old 16 bit uP in vhdl. I know there are a lot of gurus around here so here is my question. I am looking for a feedback or hindsight on what to expect when undertaking such a project. Are there any good books written which might help me in tackling this kind of problem? I know that
hi all, I was thinking of designing a 32 bit alu with vhdl.. I have coded with functionalites add,sub,and,or,etc....(no multiplication and divsion).. My doubt is i just wrote case (selectinput) when 001-> c<- a and b; likewise.. is it this much easy to design an alu.. or I am doing something wrong .. pleas advise.. also How would