Your Electronics Open Source

Texas Instruments' Bill Klein Signal Chain Articles. Given the interest it has provoked the introductive article on "The MIDAS Touch for Signal Chain" , these articles are for the deepening the argument, proposing the presentation of Bill Klein in text format and then introduce a series of articles, written in parallel with Bill and in collaboration with Farnell on "signal chain", already known as MIDAS. So articles about Mixed_signal, Interface, Data_conversion, Amplification and Sensors will be published in the coming days.

By John Isaac, Mentor Graphics [ Courtesy of Assipe ]
In today’s competitive electronics industry, getting to market ahead of the competition can mean the difference between a successful product and one that misses its market window. Design cycle time plays a big part in determining a product launch schedule and the PCB layout portion of this process often is called upon to make up for early design phase schedule slips. One designer and one computer at a time can be a limiting factor.
Traditionally, designers are pulled in from other projects to assist with meeting deadlines, usually by adopting shift-work routines or physically splitting the design into multiple pieces. Both methods incur significant overhead costs that tend to negate the advantage of design collaboration. Partitioning the design into pieces and having designers work separately on each piece can help improve the situation. But putting that design database back together is a tedious and error-prone task.

Your News Open Source is the newborn from the Your Electronics Open Source family. Your News Open Source is a site dedicated to the news of the electronics world. Each news is framed in Topics (RF, Analogs, Digitals, Passives o General) and with tags. If you want to read the whole news you can do it through the link which is located immediately after it, or going into the bottom of the page where you can find all producers from where Your News Open Source takes news. If some tag intrigue you (you find the entire list at the bottom of the page in the section Tags Cloud) you have to click on it and will appear all the news that belong to that tag. If you want to read the news on a particular category (RF, Analogs, Digitals, Passives or General) click on the taskbar categories (Topics).

Striking Gold in Advanced Analogue From Farnell
Today’s world is heavily reliant upon monitoring and control of a wide variety of physical effects, for example to utilise resources such as energy more efficiently, and to realise improvements in quality of life. Examples of electronic products that are used to achieve these goals include fuel metering and exhaust monitoring systems, medical scanners, portable health monitoring instruments, remote equipment-status monitors, and advanced security systems. Although the complex processing algorithms that make much of this possible are typically accomplished most quickly and economically within the digital domain, the natural world does not follow the digital roadmap defined by Moore’s Law, and with the human desire for faster and cheaper; it remains resolutely analogue in nature. Hence, engineers must continue to address the challenges in accurately sensing signals in the analogue world and delivering these faithfully to a point where they can be converted into the digital domain.

The USB specification was introduced in November 1995. USB was promoted by Intel, Microsoft, Philips and US Robotics. Originally USB was intended to replace the multitude of connectors at the back of PCs, as well as to simplify software configuration of communication devices. A USB system has an asymmetric design, consisting of a host, a multitude of downstream USB ports, and multiple peripheral devices connected in a tiered-star topology.[Wikipedia, USB]
Universal Serial Bus (USB) connects more than computers and peripherals. It has the power to connect with a whole new world of PC experiences. A major advantage when using USB is Power (Vbus) is bus powered devices, so called bus powered devices can draw their power from the usb bus without using any external power supplies or sockets. Careful considerations must be made according to the following criteria.
But behind all these, it is an entire world about USB. Discover it in our 100% USB Book!

But which are the differences and especially, considering the prices, the process' quickness and the normative in force that bans the lead employment (RoHS), which is the best to be used and why?

H.A.L.'s finishing has been developed, and now is realized without lead, in practice a thin-film of tin is realized on the printed circuit and then a warm air jet is distributed, from here has the name H.A.L. To realize this process there are some industrials machinery a little bit expensive, and these machinery inscribe on the planarity of the process. In fact the H.A.L.'s limit is this planarity of the pitches, also with the best machinery, it isn't possible to realize the footprint for the "fine pitch" smd components including the BGA.

ARM is a 32-bit RISC processor architecture, developed by ARM Limited that is the most widely used 16/32-bit embedded RISC solution in the world. The ARM instruction set architecture has evolved significantly since it was first developed, and will continue to be developed in the future!

The most used are:

ARM7 (ARM720T, ARM7EJ-S, ARM7TDMI and ARM7TDMI-S, CORTEX) with large quantity of peripherals and very aggressive prices, this is the direct competitor of all 16/8 bit Microcontrollers (This is the end of 8 and 16 bits Microcontrollers and $1 microcontroller features ARM Cortex core)

ARM9 (ARM920T,ARM922T, ARM9TDMI, SAM9, ARM9E family) the CORE of a Single Board Computer! With the MMU inside, support major operating systems like embedded Linux (Full Linux with full software like Open Office and Asterisk!!) and Windows CE

ARM11 (ARM11 MPCore, ARM1136J(F)-S, ARM1156T2(F)-S and ARM1176JZ(F)-S, i.MX31 ) Highest performance processor!

There are many popular products that are designed upon ARM chips (approximately 75% of all embedded 32-bit RISC CPUs) with rising trend!

FTPmicro is a web-server or ftp-client, as big as a DIP40 package, based on the PIC18F67J60.

Despite the small dimensions, the board has some interesting features:
1) A microSD card slot
2) A TC1047 temperature sensor
3) Many analog and digital I/O pins
4) Microchip TCP/IP stack
5) Connector for the ICD2 programmer/debugger by Microchip
6) DIP40 package, enters perfectly in a socket of a 40 PIN DIL microprocessor.
7) Dimensions (90x20)mm
8) A FAT16 Filesystem is used, so you can realize the web-pages directly on PC and then read by FTPmicro through the SD memory.
9) FREE EXAMPLES & Open Source CODE

EXAMPLES OF APPLICATION:

The STORE of DEV.Emcelettronica is for professional and companies that intend to commercialize the project or/and produce it they can download the file gerber (in order to realize the plan directly) and/or the ASM (to realize the software directly).

Make Your Electronics Search [ESEARCH] and click on +GOOGLE to copy/paste the gadget on your page.
Feel free to co-operate to improve the research or simply submit a website,
follow this link http://www.google.com/coop/cse?cx=008025758855854363206%3Avj5gqb1c5ms

FLEX is an embedded board which can be used by all the developers who want to fully exploit the potential of the latest Microchip micro-controllers: the dsPIC® DSC family.
FLEX is born as a development board where to easily develop and test real-time applications for the Microchip dsPIC® DSC micro-controller.
The main features of FLEX are:

Develop a single-click digital control automatic code generation tool for FLEX!
Using the Scilab/Scicos FLEX Toolbox it is possible to automatically generate code from Scicos control diagrams to fast prototype control algorithms and digital control systems for microcontroller and DSP embedded application.

Main idea: Develop a single-click digital control automatic code generation tool for FLEX!
To use The Scilab/Scicos code generator you need at least the following hardware and software:

ERIKA Enterprise is an innovative RTOS for small microcontrollers based on an API similar to those proposed by the OSEK/VDX Consortium.The ERIKA Enterprise kernel implements innovative scheduling algorithms such as Fixed Priority with preemption thresholds, Stack Resource Policy (SRP), and Earliest Deadline First (EDF), which can be used to schedule tasks with real-time requirements.
ERIKA Enterprise is available in double licensing, both GPL and commercial, and has a very small footprint: typically, a minimal installation of ERIKA Enterprise consumes from 800 to 2000 bytes of code, for the implementation of a fixed priority scheduling kernel with stack sharing and binary mutexes.

ESEARCH is an optimized search engine powered by GOOGLE allowing you to search efficiently through official and unofficial Electronics sites. There is already a classification (to improve) :

BookIT is the new way to save your bookmarks!

While browsing the web just push the Book IT button from your FireFox toolbar and it will appear introduction window of the article on your space on dev.emcelettronica.com.
You can also highlight the text to have it then automatically in the article content that you saved. But first of all you have to be logged in (obviously) and to set the browser like this:
Hold down the left mouse button on..... READ MORE

You can also use

or DIGG

Some exemples: Blog1 Blog2