Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [processing]

49 questions
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Signal Processing with Op Amps

I'm tasked to reproduce the following signal using only Op Amps (and resistors). I'm pretty sure I must add two signals, the square and triangular waveforms, it is just pretty hard to figure out how to twist the signal from -8V to 0V. I've tried…
Favner
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10
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Are processors designed using different technologies?

Can/Are processors be designed using different technologies ? What I mean here is: in, for example, Intel's 28nm processors, are all the gates in that processor built in 28nm technology or are only the most critical parts of that processor built in…
user123
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Arduino serial communication protocol design

I make a drum sequencer interface for electronic music. It uses an arduino mega as it's microprocessor, and currently it interfaces to a Processing program that I wrote for serial communication. From there, OSC messages are sent out to a Max/MSP…
Steve Cooley
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7
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3 answers

Why not SRAM for FPGA in image processing?

I'm beginning with VHDL coding and I've done some basic image processing on my development board. I've noticed that most FPGA development boards often use DRAM (SDRAM, DDRAM) as RAM. For example, I'm using a FPGA dev board from TERASIC and it uses…
user17828
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2 answers

How do hybrid electronic systems work?

In hybrid systems, we can have DSPs, FPGAs, General purpose processors, etc on the same system operating together on the same application. How are the tasks distributed among them, and which unit manages this?
Xpleria
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How are high-speed serial signals processed?

High-speed serial links such as Gb ethernet, PCIe, Firewire, etc support bit rates that suggest signalling frequencies far in excess of typical clocking speed of typical chips. I am wondering how these signals are processed. Example: SATA supports…
ARF
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Problems installing 'Processing'

I am new to the whole Arduino thing and am having problems loading 'Processing'. When I attempt to run the Processing program it says 'This Program requires Java Development Kit 1.5.0'. When I go the the Sun site to load this, I can't find SDK…
John
4
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2 answers

How do proceed with larger electronic projects?

Recently I have read two books about programming in general: First one being Code Complete and the other being The Pragmatic Programmer that describe how one should think when dealing with large projects. Wonderful books. My weak point is…
user24478
4
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1 answer

Pros/Cons of different backplane architectures?

Are there some general resources (other than spec sheets of boards) to compare the differences between computing formats like VPX, VME, IBM bladecenter-h, etc? I am tasked with doing some legwork what form-factor we should be looking at when buying…
eruditass
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Understanding CMOS performance and complexity for ASIC : 350nm to 45nm process

I am trying to build an ASIC chip with the help of the MOSIS project. (They make it cheaper by combining multiple small project into a single fab). I have a choice between 350nm to 45nm, and everything in between. My project consists of a…
Anon21
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Best way to map ints to float in Arduino?

In Arduino how do I map an Integer value Float value or vice versa? For example this simple script doesn't print out 1600 but still returns a float value of 0.00? float a = 0.5; a = map(a, 0.0, 1.0, 0.0, 3200.0); Serial.println(a);
Monte Carlo
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Precision Tracking filter required

I don't mind if it's a band-pass or low pass filter (although I think low-pass will give a better result). Input operating frequency range is 100Hz to 1kHz. Input amplitude will be about 1Vp-p and although it will be a bit noisy and not very…
Andy aka
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Why does increasing sampling density in the frequency domain separate overlapping artifacts in the spatial domain?

I have employed the fourier(projection) slice theorem in matlab. I have a 3D image, P(x,y,z) defines their pixel intensities at a given location int he image volume, it is discrete and uniform. I take the FFT of this image and get a 3D volume in the…
user1084113
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Serial nested if statements (Not working)

I have been trying to get this to work for a few days. What I have at the moment is TouchOSC installed on my iphone sending commands to a processing program, which in turn simplifies them and sends them off to my Arduino through serial. This is…
Ashley Hughes
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how to solve the solder joints not shiny?

I have met a problem, need your help. I had used Sn62Pb32Ag2 (liquid temperature is 179℃)solder paste to solder components for many years,solder joints always are shiny. but recently,when I used it to solder AgPa alloy finished resistores, after…
ewa
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