1000 Threads found on edaboard.com: Vhdl Bcd
you need to read the datasheet first what is the output format. Basically, it is in binary, either in serial or parallel form.
To display on seven segment display, you need to convert the format from binary to decimal form, use the circuit such as binary to decimal (bcd) conversion circuit. You can implement it with FPGA. Search the web for vhdl
Analog Circuit Design :: 07-12-2008 22:31 :: mm6349 :: Replies: 1 :: Views: 948
please advice on how is the most effective way to change 8-bits binary no. to bcd by using vhdl.
PLD, SPLD, GAL, CPLD, FPGA Design :: 03-29-2006 07:27 :: electronics_sky :: Replies: 2 :: Views: 2795
Here is verilog code for 16 bit bcd up counter translate this to vhdl!
Hope this helps!
module bcd_count (
input clk, reset_n;
always @(posedge clk or negedge reset_n) begin
if (!reset_n) begin
PLD, SPLD, GAL, CPLD, FPGA Design :: 02-14-2007 23:19 :: nand_gates :: Replies: 12 :: Views: 22120
is there someone who knows where to find or who has some verilog/vhdl implementations of a (iterative) bcd multiplier ?
ASIC Design Methodologies and Tools (Digital) :: 04-13-2007 03:35 :: avt :: Replies: 0 :: Views: 1177
Hello to all,
I?m newbie in vhdl programming on FPGA. I need help from all of you out there. Right now I try to write a code for 2-digit bcd down Counter, LCD display message and synchronization between both of them.
For 2-digit bcd down counter, here?s my code
PLD, SPLD, GAL, CPLD, FPGA Design :: 12-08-2008 18:52 :: Kekkaishi :: Replies: 1 :: Views: 2419
I need how design code vhdl for bcd adder 4 digit(16 bit) ?
PLD, SPLD, GAL, CPLD, FPGA Design :: 05-27-2014 03:07 :: z522msn :: Replies: 9 :: Views: 716
Do you mean 16-bit bcd adder???
If yes see the link below...
Its in verilog you can convert it into vhdl ..
PLD, SPLD, GAL, CPLD, FPGA Design :: 12-11-2006 00:48 :: nand_gates :: Replies: 6 :: Views: 2364
hmm....can you xplain it more beter?
im having problem on making a vhdl code, coz i dont know the structure....
can you post the structure of it?/
thnx in advance
In terms of structure, it's up to the coder. There are many ways to do it. But I feel as though you are seeking HDl code to solve your problem. You can fin
Electronic Elementary Questions :: 12-18-2006 07:50 :: white_shadow :: Replies: 9 :: Views: 6686
vhdl supports the real data type directly. No need for conversion.
However, many synthesis tools don't support real, but that's a different issue. Some tools provide various workarounds (such as core libraries) for doing floating point calculations. Or you can scale all your arithmetic algorithms so they fit conveniently into integers or fixed-p
PLD, SPLD, GAL, CPLD, FPGA Design :: 11-29-2007 00:31 :: echo47 :: Replies: 5 :: Views: 1467
I have written a structural code vhdl and tried to compile it. Code:
entity mux_8X8 is
port(A,B: in std_logic_vector(7 downto 0);
start, reset, clk: in std_logic;
result: buffer std_logic_vector(15 downto 0);
leds: out std_logic_vector(1 to 7);
PLD, SPLD, GAL, CPLD, FPGA Design :: 11-02-2008 09:41 :: danesh :: Replies: 2 :: Views: 5115
I need to implement a simple vhdl frequency counter for a school project. Must be 4 multiplexed digits. (the FPGA as few macrocells).
I know how to implement the counter and the bcd to seven segment. is the multiplexing and puting things togheter that i need help.
Can anyone point me to an example? Must be very simple.
Thank you in
PLD, SPLD, GAL, CPLD, FPGA Design :: 06-06-2009 10:40 :: Codeman :: Replies: 4 :: Views: 9988
I am somewhat new to vhdl, but I have some past experience with discrete digital design.
I would like to take a bcd number that is in the std_logic_vector format and convert it into ieee single float format in order to use the number as an input to the Xilinx Floating Point IP Core.
I am starting in bcd because it was (...)
PLD, SPLD, GAL, CPLD, FPGA Design :: 07-31-2009 11:28 :: smuldoon :: Replies: 0 :: Views: 1259
I'm from Brazil, but I think I can help you. You can describe a frequency divider for the 50 Mhz oscilator on the board. To download a vhdl code in the FPGA, you can read the ISE Quick Start Tutorial that you can find here:
PLD, SPLD, GAL, CPLD, FPGA Design :: 06-01-2010 14:11 :: MarcosMedeiros :: Replies: 2 :: Views: 1340
vhdl coding tips and tricks: vhdl code for bcd to 7-segment display converter
Lab 4 - bcd to Seven-Segment Decoder
show your code...
PLD, SPLD, GAL, CPLD, FPGA Design :: 07-15-2011 00:08 :: sanju_ :: Replies: 2 :: Views: 1497
I have a vhdl code counter that counts in binary from 6 to 88 then it rolls over to count down from 88 to 6. Now i want to do the same counter but instead of counting in binary i need it to count in bcd. can i show the count values in quartus in bcd? if not please any help how can i do that?
thank u in advance.
PLD, SPLD, GAL, CPLD, FPGA Design :: 10-12-2011 14:41 :: herwis :: Replies: 0 :: Views: 441
Whats wrong with fixed point packages? there is a Xilinx version here:
vhdl-2008 Support library
But whats wrong with this code?
temp0 := resize(Input1, temp0'length) * 2**12;
temp0 := temp0 * 3300;
output <= temp0(23 downto 12);
PLD, SPLD, GAL, CPLD, FPGA Design :: 02-28-2012 11:11 :: TrickyDicky :: Replies: 4 :: Views: 1085
What's you particularly question? I see, that you have been able to copy the popular "double dabble" code from the internet. (Reference in )
As far as I see, it's a syntactically correct vhdl function. I assume, it will serve it's purpose.
In addition, you would want to add a standard package
PLD, SPLD, GAL, CPLD, FPGA Design :: 04-28-2012 15:59 :: FvM :: Replies: 2 :: Views: 450
I am trying to write the vhdl code for a Timing Genarator Chip :
in the vhdl code i have to incorporate a code for the 16 Bit bcd(Binary Coded Decimal) Counter i.e. 4 Decades , i tried a lot but unable to figure it out how to get it working...
as the 16 bit bcd counter can count from 0 to 9999 ,for the first 9 clock pulses (...)
PLD, SPLD, GAL, CPLD, FPGA Design :: 07-24-2012 05:02 :: beast_boy :: Replies: 5 :: Views: 3758
Define your input and output seperately, thenn define a new variable using inputs by concatenation (the operator &)
here is one
Electronic Elementary Questions :: 04-24-2013 03:31 :: AdvaRes :: Replies: 1 :: Views: 197
I need to develop a vhdl code for 9 bit binary to bcd number.
I searched in internet and find code for converting 8 bit and 10 bit numbers
Can anyone help me in writing the code for this 9 bit binary number
ASIC Design Methodologies and Tools (Digital) :: 05-03-2013 06:20 :: xilinx1001 :: Replies: 4 :: Views: 649
I thought you could interpret it should be in vhdl... As I have posted it under FPGA thread..... As by far people program it in vhdl... well its FPGA...
PLD, SPLD, GAL, CPLD, FPGA Design :: 11-19-2013 15:52 :: manasic :: Replies: 11 :: Views: 265
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...
Professional Hardware and Electronics Design :: 07-13-2001 17:19 :: :: Replies: 7 :: Views: 3631
Can someone give me links to documentation and foundries proposing bcd-processes (biploar/cmos/dmos)?
Professional Hardware and Electronics Design :: 07-22-2001 06:33 :: jk :: Replies: 0 :: Views: 2050
just go to aldec website and you can download free tutrial presentation for both verilog and vhdl.
[ This Message was edited by: EcraZ on 2001-11-22
Professional Hardware and Electronics Design :: 11-21-2001 22:58 :: EcraZ :: Replies: 5 :: Views: 9953
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
Professional Hardware and Electronics Design :: 10-29-2001 04:17 :: flybear :: Replies: 0 :: Views: 1504
vhdl QUICK Reference Guide
Ready for onboard prints
Uploaded file: vhdlref.pdf
Microcontrollers :: 02-21-2002 06:04 :: jimjim2k :: Replies: 2 :: Views: 3115
where to get test bench with vhdl for SDH chip?
Microcontrollers :: 02-22-2002 00:49 :: coolsniper :: Replies: 10 :: Views: 2312
The vhdl Golden Reference Guide
A 136 pps ebook.
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
Microcontrollers :: 02-24-2002 06:48 :: jimjim2k :: Replies: 3 :: Views: 7723
Here is the vhdl code for 8051 MC.
Uploaded file: 8051 in vhdl.zip
Microcontrollers :: 02-24-2002 06:59 :: jimjim2k :: Replies: 8 :: Views: 7736
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.
Microcontrollers :: 02-25-2002 09:00 :: jimjim2k :: Replies: 5 :: Views: 3606
vhdl Language reference manual. latest edition.
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
Microcontrollers :: 03-01-2002 15:09 :: KARLZ :: Replies: 3 :: Views: 2352
This reply is for those who will be reading this thread ...
You can find/download free vhdl, Verilog testbench
generators from .
Other free utilities available in this site are,
Verilog netlist parser, RTL uniquifier. All these utilities
are platform independent ( Windows, Linux, Solaris ) as
these are imp
PLD, SPLD, GAL, CPLD, FPGA Design :: 04-19-2010 16:43 :: Questa Technologies Suppo :: Replies: 6 :: Views: 6609
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
Microcontrollers :: 03-02-2002 09:09 :: jimjim2k :: Replies: 9 :: Views: 3312
Thank you !!
On 2002-03-05 02:12, mexico_mike wrote:
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: [url="./uploads/tb_g
Microcontrollers :: 03-07-2002 17:25 :: :: Replies: 2 :: Views: 3712
Would you please upload IEEE Standards
for verilog and vhdl to this place.
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
Microcontrollers :: 03-05-2002 02:40 :: jimjim2k :: Replies: 0 :: Views: 1599
IMHO, I think Verilog will probably become increasingly dominant in the future. Realistically though, vhdl is here to stay for a long time. This means several things.
1) You still need to own and know how to use vhdl tools.
2) You still need to know vhdl
ASIC Design Methodologies and Tools (Digital) :: 03-11-2002 22:42 :: :: Replies: 113 :: Views: 15393
Anyone has a DSP core in vhdl or Verilog? Prefer TI but anyone will do.
Microcontrollers :: 03-14-2002 11:16 :: ASIC :: Replies: 14 :: Views: 5350
Would anyone share the RS232 vhdl code ?
If you have RS232 test program , please share.
Thanks a lot.
Other Design :: 03-30-2002 04:47 :: cssheu :: Replies: 11 :: Views: 13108
On 2002-04-06 09:47, antipattern wrote:
How about the Ben Cohen's books and the
"vhdl Coding and Logic Synthesis with Synopsys" -- by Weng Fook Lee?
Where can I find these books?
ASIC Design Methodologies and Tools (Digital) :: 04-07-2002 21:41 :: firebird :: Replies: 7 :: Views: 1950
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 (...)
Microcontrollers :: 05-09-2002 06:32 :: jimjim2k :: Replies: 5 :: Views: 3313
All of four blocks are sensitivity list incomplete. vhdl is a strong type language, don't you get a error message about that when you compile the codes?
ASIC Design Methodologies and Tools (Digital) :: 01-17-2003 11:11 :: corgan :: Replies: 9 :: Views: 1162
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
Microcontrollers :: 06-09-2002 08:29 :: jimjim2k :: Replies: 0 :: Views: 1432
1. -> t
Microcontrollers :: 07-11-2002 03:09 :: jimjim2k :: Replies: 0 :: Views: 1451
1. -> t
Microcontrollers :: 07-11-2002 04:11 :: jimjim2k :: Replies: 0 :: Views: 1404
mates..this is what iam crying for last 6 months..
systemgenerator will give vhdl code as well as testbench codes for matlab scripts specific for dsp related apps,,
can anyone provide a full version of system generator
PC Programming and Interfacing :: 07-15-2002 09:52 :: synq :: Replies: 32 :: Views: 15108
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.
Microcontrollers :: 07-17-2002 14:24 :: john5888 :: Replies: 6 :: Views: 3757
here is a link to comp.lang.vhdl newsgroup about the
necessary of the sensitivity list. very interesting.
PC Programming and Interfacing :: 10-03-2002 09:38 :: kobik :: Replies: 0 :: Views: 1691
Can any body help me if you have vhdl code for BFSK or even clear flowchart
PC Programming and Interfacing :: 12-08-2002 03:06 :: Vonn :: Replies: 0 :: Views: 1509
Is it possible that Vera work with NC-verilog/vhdl ?
Refer to Vera's documents.
There is a step-by-step guide to compile the PLI for NC-Verilog.
ASIC Design Methodologies and Tools (Digital) :: 02-24-2004 00:51 :: cyc :: Replies: 7 :: Views: 2631
I need tha vhdl of the PCI LogiCORE interface from Xilinx.. could you help me???
Tnx a lot
PC Programming and Interfacing :: 12-14-2002 09:55 :: Leron :: Replies: 2 :: Views: 1405