comp-e.com » Verilog

Verilog Examples For The Spartan 3 / Nexys 2 Boards

COMP-E — Thu, 06 Aug 2009 07:07:19 +0000

Well, I thought I’d be extra generous since I haven’t posted in so long, and have uploaded 4 verilog examples for your viewing pleasure.

I have been a bit busy to comment them but I hope that they may be useful still as just coding examples.

Enjoy

Verilog – 14-bit BCD ( Binary Converted to Decimal)
Verilog – 4 to 1 and 2 to 1 multiplexor
Verilog – Seven Segment Display on Spartan 3 Board
Verilog – Simle PB Debounce Code For Spartan 3 Boards

- comp-e

Digital Design with Pipeline 6 Bit Registers

COMP-E — Thu, 12 Mar 2009 22:33:55 +0000

This SLSL / ’sudo verilog’ program implements the digital design of a pipeline having multiple registers, an adder, and multiplication architecture. The program can easily be re-implemented in Verilog at your discretion. SLSL is a wonderful language that allows for rapid development of digital designs, which is why many of my programs are done in it. Conceptually, you can code from a block diagram to an HDL with it. Unfortunately SLSL is not available to the public, but it should be quite easy for anyone with a couple Verilog or VHDL programs under their belt to understand. The code can be found here.

COMP-E
~a place where computer engineers can play

Nexys 2 Spartan 3 FPGA Arrives

COMP-E — Sat, 07 Mar 2009 19:40:22 +0000

It took a week to get it from Washington state, but it’s finally here. My gorgeous Nexys 2 board I ordered from Digilent. It uses the Xilinx Spartan 3-e chip and has a lot of nice extra features that the one that Xilinx makes didn’t have. Digilent’s website also has a ton of cool addons for the board which I hope to get when there’s some money to spare. I’m going to start out slow and try and reacquaint myself a bit with verilog. My intent is to make a simple calculator and then perhaps move to converting my SLSL code for the 8085 over to verilog. The Nexys 2 board does come with some cool peripherals such as a ps2 port so I may get sidetracked and see what I can do if I hook up an old ball mouse too it. I’ll try to keep you all posted here so the RSS grabs it, but check the forum for code postings and photos. I’ll try to include links as things crop up.

- COMP-E

Digital Design Implementing 8085

COMP-E — Sat, 07 Mar 2009 19:30:37 +0000

All op codes are not represented / implemented in this design however adding them should be very straight forward. This digital design utilizes a bus in order to achieve high efficiency and throughput. The design is scaled back a bit and uses less registers than the actual 8085. This can be easily modified though. Additional op-codes can also be added. Included in this post is are the .src (source) .fmt (format/debug) files. Note that the ‘cpu’ is reading op codes from memory not a .in file!

Click here for the full post including SLSL code.

- COMP-E

FPGAs!!!

COMP-E — Tue, 03 Mar 2009 17:01:39 +0000

Howdy all,

I’ve been getting into some realy hobby stuff as of late and you will be seeing some forum posts on it in the near future. I just got myself a Nexys 2 board ( Xilinx Spartan 3 – based) and will be seeing what I can get out of it. The overall goal is to write some verilog to create the 8085 for it and then from that make a ‘quad’ 8085 So, we’ll see how it goes you can check out my updated progress on this page and the FPGA directory on the comp-e forum which you can check out here.

Nexys 2: Spartan 3 board

Cheers,

- COMP-E