Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Help calculator project using FPGA Spartan 3A

Status
Not open for further replies.

73FRI

Newbie level 5
Joined
Apr 18, 2011
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,333
Hello Guys...
I want to make Calculator using FPGA Spartan 3A with VHDL code via keyboard.

I have connected PS2 Keyboard with Spartan's LCD.

My Problem is i don't have enough references how to make calculator logic.
any reference and script examples would help me alot...

Thx
 

std_match

Advanced Member level 4
Joined
Jul 9, 2010
Messages
1,187
Helped
444
Reputation
888
Reaction score
409
Trophy points
1,363
Location
Sweden
Activity points
9,120
The book by Pedroni is good, but is has one big problem.
It uses the non-standard libraries std_logic_unsigned and std_logic_arith.
It is very confusing for a beginner to see simple things like incrementing a counter done in different ways in different books/sources.

Go for the standard library numeric_std !
I recommend this book by Peter Ashenden:
Amazon.com: The Designer's Guide to VHDL, Volume 3, Third Edition (Systems on Silicon) (9780120887859): Peter J. Ashenden: Books

Ashenden's book is maybe not the best for hands-on experimenting, but it is much better as a reference than the Pedroni book.

For hands-on experience, go to a website like www.fpga4fun.com or similar.
 
Last edited:
  • Like
Reactions: Abeer_h

    Abeer_h

    points: 2
    Helpful Answer Positive Rating

Abeer_h

Member level 5
Joined
Aug 25, 2010
Messages
83
Helped
9
Reputation
18
Reaction score
8
Trophy points
1,288
Location
In your worst nightmares
Activity points
1,761
I started learning vhdl last month by myself.. I used pedroni's book. He did well in providing many examples but not that well in explanation. Yesterday I started Dougles Smith book "A practical Guid for designing, Synthesizing and simulation ASIC and FPGA's using vhdl and verilog" I heard positive feedback about it although it is an old book (1996).

Abeer :twisted:
 

73FRI

Newbie level 5
Joined
Apr 18, 2011
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,333
would u like to give me some simple examples about my project :eek:

btw i use Xilinx ISE Design Suite 12.4 :D

sorry for this noob question :eek:
 

73FRI

Newbie level 5
Joined
Apr 18, 2011
Messages
9
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,333
yes I do... I have connected connected PS2 Keyboard with LCD on xilink spartan 3a for my first project.

Now, I want to make a simple calculator using numpad on PS2 keyboard with LCD on xilink, but i don't know the mathematic logic for plus, minus, sub, div.
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top