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Questions tagged [sbc]

SBC stands for single board computer. It is a complete computer on a single PCB, including processor/microcontroller, I/O and other features.

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Co-Processing Across SBCs

Situation: Was thinking about co-processing as I played with the Adapteva Parallella, which has a quad-core CPU and a 16-core RISC-based co-processor. Question: It got me thinking -- can I achieve ...
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34 views

Using narrower DDR RAM than controller

I have some ARM processor that have 72-bit width (8 for ECC) RAM controller. Can I buy eg. two 32bit chips and combine them? If yes then how? Can I buy just one 32bit and pull down rest of data pins ...
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1answer
101 views

Single Board Computer with no hardware memory for firmware [closed]

Im looking for a SBC that has Completely no hardware memory for the firmware (e.g BIOS, ,etc.), i think raspberry pi has that, except the bootloader which is ROM OR All firmware memory on the ...
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1answer
123 views

Which Board Should I Use For High Frequency GPS?

This is a very general question, hopefully with the amount of information I provide you will be able to steer me in the right direction. I am trying to build a very versatile GPS receiver, with ...
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1answer
57 views

Wire AC/DC Power-Supply to multiple devices

I plan to power 5 SBC boards through a single power-supply. Each board consumes 5V at 3A max. The power source is ordinary 230VAC (EU). I am uncertain how to connect everything in a sane way. Power-...
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3answers
520 views

Why is it important, in terms of ESD protection, to ground a PCB to its case (if not insulative)?

I have a 12V DC-powered SBC to mount inside a metal case. How important is it that I connect its ground(?) to the metal case on the interior? How is this going to protect against ESD events? From my ...
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2answers
157 views

How should I use a static-shielding bag prior to opening, and why?

After grounding the ESD mat and wearing the properly grounded anti-static wrist strap, what is the correct process to take the contents out of the static-shielding bag and take it onto the antistatic ...
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153 views

What is a safe way to carry around (wrt ESD safety) a single-board computer in an enclosure like this? [closed]

I have a single-board computer and an enclosure, which will hopefully look like this in the end: I have three small questions: If I only hold it from the edges while assembling the enclosure, do I ...
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1answer
429 views

Single board computer (SBC) with industrial grade [closed]

I was using single board computer (Raspberry Pi, Beaglebone) to develop prototypes. A new requirement is that the prototype should satisfy "industrial grade" with regarding to (for example): ...
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4answers
136 views

Linux on board without 3rd party modules. Where to start? [closed]

I would like to be able to design my own Linux board the way I design my own micro-controller boards. The complexity is obviously going to be higher from PCB design and assembly point of view, but I ...
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1answer
141 views

Why are some electronics seemingly unbreakable (phones) and others very fragile? [closed]

Specifically I am wondering about the mechanical strength of the surface mount connections in consumer electronics. Are some tougher than others? I've had a few experiences where an electronic ...
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1answer
56 views

single board computers sharing a microswitch

I have two independent single board computers (SBCs) connected to a common ground. I wish to have an input pin on each (both used concurrently) connected to a microswitch. When the microswitch closes ...
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2answers
545 views

100BASE-T two devices on a single ethernet port

I am trying to embed a SBC inside a device. Power, weight and space are very limited. The two devices need to communicate with each other via Ethernet using a crossover cable. I would like to solder ...
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2answers
643 views

Split External 5V PSU 4 ways

New here + reasonably new to electronics - can solder + hack, but anything finer I need help with! Building a games rig out of an old console case. I'm looking to have the PSU outside of the unit to ...
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1answer
155 views

EM compatibility of single board computers and laptops

Like a lot of people on this site, I own some single board computers (SBC) and microcontroller boards (UDOO, Raspberry Pi, Arduino, Atmel boards, etc.). I wonder about the electromagnetic emissions ...
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1answer
400 views

How do I get the physical dimensions of a DWG file? [closed]

How can I get the dimensions from this DWG file? I need the length and width as well the the precise locations of the mounting holes of this SBC (link to ZIP file below). http://dn.odroid.com/ODROID-...
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3answers
3k views

Designing a Single Board linux computer [closed]

I'd like to design a single board Linux computer, maybe something ARM-based but I really don't know that much about the hardware side of computers. Does anyone know where I could get some information ...
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1answer
159 views

Use of READY line on 8086 - is it mandatory?

Alright folks, I've recently begun working through the design of an 8086 single-board in my free time to play with (for lack of a better word, I need to experience the rush of being close to low-...
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1answer
47 views

The development board not detect SD card

I have problem on the SBC EM2440-III. when I insert sd card 4G or 8G into the board, it not detect sd card. I insert sd card 2G and work OK. please help me to solve the problem.
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1answer
465 views

SPI SBC communication

I am using MPC5748G controller, in that i want to communicate my SPI with the SBC chip on board i.e MC33905, By going through the data sheet I am sending the proper commands to SBC through SPI API's ...
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1answer
935 views

What is the difference between SBC & Development board?

I was searching for an dev board with RS 232 interface and with capability to implement ethernet interface as well(either on same board or using accessory board) then I came across Single Board ...
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2answers
364 views

What is this device?

I found this little device which got my attention. Maybe you can tell me what it is. Is it a I/O board with an OS running on it similar to Raspberry PI? ICs on the device: AMD: AM29F200BT-70EC "...
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3answers
596 views

Single Board Computer (SBC) suggestion for interfacing with DMA

I am taking over a project where a Spartan 6 FPGA provides the interface between an ADC and a DDR2 memory chip. The FPGA takes 16-bit data out of the ADC and stores it into the RAM at a rate of 28MHz. ...
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2answers
306 views

Software SPI implementation on SBC

I have a ts7800 SBC, and I need to communicate over an SPI bus. In their documentation they say that their is no hardware SPI, and they implement in their sample code "software SPI." For me, this ...
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1answer
585 views

PANDABOARD Booting

I have a PandaBoard and I do not, yet, have a SD/SDHC card reader to create an image for the board yet. Most of the information on the pandaboard.org web site walks through the creation of an SD ...
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2k views

Controller for greenhouse control system

I'm working in a project where we are developing a greenhouse control system, to take care of temperature, humidity... For the first step where we only log the parameters to an SD we have been using ...
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4answers
954 views

linux sbc recommendations [closed]

I realize this is nearly a dupe of SBC Recommendations , but I have slightly different specs in mind. Does anyone know of a single-quantity SBC with the following features? 32 bit CPU, something ...
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3answers
415 views

SBC Recommendations [closed]

I want to get started with embedded development and for my first project I thought of making a caller-ID type of appliance. Here's why I want a SBC for this: I want to be able to locally serve this ...
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2answers
510 views

COP8 MCU information needed

I have a problem with a sbc that I am repairing, the sbc is controlled by an 8-bit OTP microcontroller which I think is broken. I only get 200 ohms between pin Vcc and Vss, specifically the chip is ...