Fairchild monolithic integrated circuit, 1961
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Fairchild monolithic integrated circuit, 1961
I (really) don’t even know. Hopefully I will in a week.
Mod Snake
by Txchnologist staff
From the biorobotics lab at Carnegie Mellon University comes this modular snake robot. According to the researchers, using the form of a snake allows the robot to navigate freely in many different environments, including networks of pipes and the gaps between walls. It can also climb stairs and trees.
Read More
see more
i had that same idea
PSoc4はArduinoシールド互換だ
got one of these at work today... projects to follow in the future
Rock-Paper-Scissors Robot has 100% Win Rate
Tokyo’s Ishikawa Oku Laboratory has created a research robot that can play rock-paper-scissors against a human and win 100% of the time. It cheats.
Tested
VHDL Lesson #1 Code structure
I am starting off the series with the second chapter of the book since the first chapter is more of a history lesson and if you are following this segment you likely somewhat understand what VHDL is and FPGAs are. In short chapter one goes over when and why VHDL was invented as well as a couple of examples.
I have started a repository on GITHUB for any Example code I come up with. GITHUB is like a programmer's social website where you can post code publicly and people can comment on it as well as offer improvements. It is also a great place to ask for help if you have a bug in the code you happen to be working with.
VHDL is an IEEE standard and for that matter is very structured. The Basic code structure looks something like this.
1. Library declarations
This one is pretty self explanatory if you have coded in most any language. Here you import the libraries that you need for the functions that you will use in your project. It is important to realize that these libraries actually contain subsections that can also be called out so that you do not have to import the whole library. Inside each library there are a set of packages that contain Functions, Procedures, Components and Types. A typical declaration looks like this:
LIBRARY library_name;
USE library_name.package_name.package_parts;
(Pedroni 2.2)
2. Entity
This is where you set up what each pin does. Programmable logic devices such as FPGAs are able to configure their pins as inputs or outputs. The entity tells the device what pins are being used and how they are being used. A typical Entity entery looks something like this:
ENTITY entity_name IS
PORT(
port_name : signal_mode signal_type;
port_name : signal_mode signal_type;
...);
END entity_name;
(Pedroni 2.3)
3. Architecture
Here is where you are able to tell the circuit how you would like it yo behave. Each entity can be manipulated here and molded to your exact specifications. A typical architecture entry looks like this:
ARCHITECTURE architecture_name OF entity_name IS
[declarations]
begin
(code)
END architecture_name;
(Pedroni 2.4)
Piecing together the examples above we end up with a VHDL file that looks like this:
------------------------------------------------------------------- -- VHDL code structure example code -- EEUnited.tumblr.com -- -- This file is an example of the structures inside of a VHDL -- Code Example Based on examples from the first chapter of -- "Circuit Design with VHDL" by Volnei A. Pedroni -- -------------------------------------------------------------------
-- Library Declarations ------------------------------------------------------------------- LIBRARY library_name; --Comment USE library_name.package_name.package_parts; --comment
-- Entity ------------------------------------------------------------------- ENTITY entity_name IS PORT ( Port_name : signal_mode signal_type; Port_name : signal_mode signal_type; ...) END entity_name;
-- Architecture ------------------------------------------------------------------- ARCHITECTURE architecture_name OF entity_name IS [declarations] BEGIN (code) END architecture_name;
At the end of the chapter there are actual code examples for D-Flip-Flops, AND gates, Or Gates, and a few other relatively simple circuits.
Next chapter is about data types. Till then Blog you later.
Learn VHDL with me
I recently picked up a FPGA development board at work and a couple of books to read. I have poked around with the software tools to get orientated. Its pretty awesome if you ask me. I will be posting my notes as i read through one of the books as well as posting some of my code used in any projects that I do. The book that I am starting with is "Circuit Design with VHDL" by Volnei A. Pedroni ( ISBN: 978-0262162241 )
The Book can be found on Amazon for $43.70 new
http://www.amazon.com/Circuit-Design-VHDL-Volnei-Pedroni/dp/0262162245
I am hoping to post at least once a week. Depending on the amount of information covered in each chapter, each post will summarize each chapter.
Till then ... Blog you later
Gotta Love Engineering at it's Finest
Wind turbines with sensors gather the real time data needed in order to produce the most power across the whole wind farm.
Predix, GE’s software platform for the Industrial Internet, is putting minds in machines to optimize efficiency and improve safety. Click through the visualizations to learn more.
I always love looking at cad animations like this. I have a sudden need to mess around with solid works!!!
A cascading failure is a failure in a system of interconnected parts in which the failure of a part can trigger the failure of successive parts. Such a failure may happen in many types of systems, including power transmission, computer networking, finance and bridges.
Cascading failures usually begin when one part of the system fails. When this happens, nearby nodes must then take up the slack for the failed component. This overloads these nodes, causing them to fail as well, prompting additional nodes to fail in a vicious circle.
A simplified explanation on why blackouts (failure of power transmission grid) occur.
The Concept of Microcontroller Programming http://www.rakeshmondal.info/pic18f4550-programming-Hardware-C
Microcontroller can only understand the machine language (0 and 1). The code [instructions] written in the IDE is converted into “Machine code” by the compiler. After compilation the output will be generated in .hex format (A file-name with .hex) [ AN Example .hex ], all we have to do is just to upload that .HEX file into the microcontroller READ MORE
Its Been a while
I know that i have been quite AFK for a while but I promise you that ill be back a lot more this summer. I am done with finals and started working at Mercury systems as a Co-Op. I get to work with a lot of high end technology. Unfortunately I will not be able to share anything to the blog about my experiences there but I will likely make reference to things that I learn there. The People are great and I feel like I am going to be learning a ton. In other news I have plans for a desk top build that Ill share. as well as a few other projects that I am hopping to get a lot of work on.
Till next time .. Blog you latter
NASA Successfully Launches Three Smartphone Satellites
Three smartphones destined to become low-cost satellites rode to space Sunday aboard the maiden flight of Orbital Science Corp.’s Antares rocket from NASA’s Wallops Island Flight Facility in Virginia.
The trio of “PhoneSats” is operating in orbit, and may prove to be the lowest-cost satellites ever flown in space. The goal of NASA’s PhoneSat mission is to determine whether a consumer-grade smartphone can be used as the main flight avionics of a capable, yet very inexpensive, satellite.
Transmissions from all three PhoneSats have been received at multiple ground stations on Earth, indicating they are operating normally. The PhoneSat team at the Ames Research Center in Moffett Field, Calif., will continue to monitor the satellites in the coming days. The satellites are expected to remain in orbit for as long as two weeks.
NASA engineers kept the total cost of the components for the three prototype satellites in the PhoneSat project between $3,500 and $7,000 by using primarily commercial hardware and keeping the design and mission objectives to a minimum. The hardware for this mission is the Google-HTC Nexus One smartphone running the Android operating system.
Floating Ripple Vases (by oodesign)
Fill your favorite container with water and float the vase. According to the movement of the air, the plants change their position within the container.
Micro 3-D Printer Creates Tiny Structures in Seconds
Faster printing could see the technology move from research labs to industry
Full Story: MIT via emergentfutures