An embedded system is a computer system designed to perform one or a few dedicated functions often with real-time computing constraints. It is embedded as part of a complete device often including hardware and mechanical parts.
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Are there any Embedded Design Contests [closed]
Are there any embedded design contests?
Circuit design Contest?
electronic design contest?
Any open enrollment, or invitation too.
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23 views
Habing trouble booting code on an embedded SoC
I recently bought a freescale i.mx233 based OLinuXino-MICRO board to mess around with and give me some more power than the AVR uC's I've been doing abit with lately. However I'm having trouble getting ...
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38 views
Embedded project using Mux and Demux for antenna
In our current embedded project we are implementing a GPS ,GSM and Wifi Module. To connect these modules to external antenna board,separate SMA cables are used.As our design requires each of the ...
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2answers
83 views
ExternalDifferential ADC Values for PIC
I have a temperature sensor design that I'm using as a reference. It takes 2 RTD sensors and reads their values with a Dual Channel 16-bit Differential ADC. The ADC interfaces through the SPI bus.
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2answers
66 views
Embedded system with SMA connectors
I am developing an embedded system that performs GPS and Wifi operation with separate modules for each and two SMA connectors to connect the respective antennas. Once it is being installed, is there a ...
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39 views
learning embedded system [closed]
can someone please assist me regarding :
1 The topics that i should read in electronics in order to learn designing schematics for embedded systems as well PC boards.
2 and reference book that i ...
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1answer
72 views
what type of electronics job would combine mathematics, electronic design and programming into one [closed]
There are quite a few different areas of jobs in the Electronics industry.
We have Analogue, Digital, Embedded, Telecommunications, Control and much more. What I wish to know is that what job would ...
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60 views
Advice needed: Develop a bluetooth device at the size of finger ring [closed]
I have a small requirement. I like to amplify the microphone signal of a smartphone (android/iphone/windows phone) using a bluetooth device that can be worn on finger as ring. The idea is not to loose ...
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2answers
62 views
STM32 ARM header files for use with Eclipse and GCC
I'm a mechatronics (mechanical and electrical) engineering student and want to learn how to program ARM microprocessors. I've used Atmel ATMegas previously. I'm using a mac and being a student I ...
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1answer
27 views
Difference between best/worse-case latency
I am doing performance optimization of an inverse 8x8 Type-II DCT transform code using Xilinx Vivado HLS. I have generated the report but am unsure of the difference between the best-case latency and ...
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26 views
IBIS model simulation with spice model
I am designing a Data acquisition system with a Texas instruments ADC, Inamps and a ST micro electronics micro controller. I am getting spice models for my inamps, differential amplifiers etc. so that ...
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2answers
91 views
where to begin learning PC board designing [closed]
can someone please guide the correct path to learn board designing for computers. being specific i am just keen to design a SBC(single board computer) just for hobby purposes my current knowledge is ...
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2answers
193 views
Can I generate 56kHz signal with MCU running at 1Mhz
I am new to embedded systems designing. I have to generate a 56kHz signal with a MCU running at 1Mhz. I want high accuracy. If I just use a timer, it gives me 55.55kHz.
Is there any way I can divide ...
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59 views
How to get rid of “Invalid opcode 0x002A at PC=0x004” in ISIS Proteus?
I have used ATmega 8 and have simulated a circuit to use interrupts, when i give an external interrupt i.e. when a push button is pressed all the LEDs connected to PORTB supposed to be lit up, but i ...
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2answers
97 views
What Happens when Read or Write Failures Occur on SD Card?
I have been happily backing up and copying SD (including microSD and SDHC) cards from a Linux PC using the following commands:
...
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2answers
48 views
Function called in ISR and Overlay Directive -Keil / 8051 core
My C code has an ISR, where a decision has to be made to execute a particular function "A". Now I know that its not good to run a function in an ISR. But in this case of my application, I do not see ...
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2answers
76 views
Communication between embdedded system and Mobile phone
I am software developer and new to the embedded systems.
I need to use a wireless communication method to send/receive data from embedded system and a mobile smart phone (Android - iPhone).
My target ...
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38 views
Can you help me find a suitable MIPS eval board
I'm a ARM guy but recent events have me needing to port some of our code base to a MIPS device and profile it. Mainly concerned with processor utilization.
The device target I'm looking for is a ...
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1answer
52 views
Embedded board level functional test at factory
My embedded project has a GSM and a GPS module. What is the best way to test the radios of these modules after the production of CCA like in a factory conditions.I was thinking of signal generators ...
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81 views
Help required to translate a code from VHDL to embedded C
I have a VHDL code for a system that implements clock recovery. It includes various processes. A process in VHDL is like a function but consists of a sensitivity list that contains parameters which ...
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1answer
61 views
Camera component for taking still images? [closed]
I am working with some friends on a project that needs to have an camera that takes photos, but we are needing to source just the sensor, with built in lens. One such solution I found was:
...
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2answers
126 views
RS 232 serial sniffing
We have a task in hand to sniff a RS232 protocol in a certain industrial automation setting(we have been asked to do this legally by the manufacturing company itself). We are planning to send a ...
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5answers
217 views
Programs resistant to hardware issues
I recall at one point reading about embedded development where the programmer took into account things like memory corruption and possibly other hardware issues. For example:
If an instruction in ...
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0answers
71 views
hardware platform with only ethernet and power [closed]
I'm new to embedded systems, I am a software engineer. I'm looking to make a small ethernet based server. Just needs ethernet and power, if it has more I will need a case which obscures the other ...
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1answer
86 views
Writing a method using MIPS code
I am trying to understand how convert C code to MIPS code and I have having trouble understanding why the stack pointer( $sp ) needs to be manipulated before and after the procedural code.Isn't the ...
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1answer
216 views
STM32F4 Discovery demonstation not working anymore
I purchased a STM32F4 Discovery quite recently, and when I initially unboxed the board, I hooked it up to my Mac, and the already programmed in demonstration was working 100%. I was able to view the ...
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1answer
127 views
Embedded system engineer's guide to GUI [closed]
For an engineer who solely knows C/C++ for programming microcontrollers, and has no idea about developing fancy GUI application for communication with his embedded systems, Which book and IDE might be ...
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0answers
84 views
JTAG Programming with LPC4330
Because the Example Virtual Serial Device project from NXPUSBLib contains a space in it's directory structure (specifically Example_VirtualSerialDevice/LPC43xx M4/...) I can not successfully download ...
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4answers
117 views
How to determinate a reasonable clock frequency for a MCU?
Currently my datalogger is running at 12Mhz, and sleeps 90% of the time. When it's active its mostly blocked by I/O like SD-card or UART.
I suspect the system would still work at 6 Mhz, but how do ...
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3answers
111 views
Microcontroller hanging during serial communication
I was working on a project in which microcontroller is communicating serially with computer.
Initially it works properly but after some duration (i.e 2-3 hours) microcontroller get hanged.
I think ...
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9answers
380 views
Microprocessors/Microcontrollers - Do registers have addresses?
My Embedded Systems professor keeps referring to the memory locations of registers as their respective "addresses". I'm confused by this; I was always under the impression that in any microprocessor, ...
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3answers
111 views
sEMG with ADS1299 from TI
What else besides an ADS1299 from TI and a 32bit microcontroller (like Teensy or Electric Imp) would I need to get an sEMG signal?
The ADS1299 is a "low-noise, 8-Channel, 24-Bit analog front-end for ...
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2answers
135 views
Searching for a Micro controller with a battery capability
I am working on a low power design, which will have a MCU powered by my regulated DC power supply from mains(220VAC). But when the Mains fail, I intend to have a battery connected to the chip that ...
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1answer
156 views
ARM + FPGA board for industrial Product development [closed]
I am using mini2440 board with external FPGA board, I am looking for one ARM+FPGA board with GPIO support.
As of now I am using mini2440 board with GPIO to control the hardware and sometimes using ...
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2answers
98 views
Designing FIR filters [closed]
How can we realize a second order digital FIR filter without using a microcontroller. What assumptions would be taken?
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3answers
82 views
What is the mechanism behind RO or WO and WR registers?
In embedded systems you have read only and write only registers. How are the two type distinguished in the netlist? I can not understand how one build a flop which you can only write and not read ...
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4answers
252 views
Can individual pins of different port of a microcontroller be mapped to a register and their values be changed when changing the register value?
Q: Can individual pins of different port of a micro-controller be mapped to a register and their values be changed when changing the register value?
Scenario: I have used up some pins from each ...
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2answers
189 views
Embedded System for a image processing task
I initially posted this on SuperUser, but I suspect, this might be a better place to post this (sorry for the double post!): I'm quite a beginner to embedded systems, but am eager to learn more. I've ...
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1answer
83 views
Leaving target processor paused nios ii multiprocessor application
I m using the multiprocessor tutorial, to have a MPSOC application, but when i finish all steps and running the nios application
I have this message in the terminal,
...
3
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1answer
133 views
Serial Peripheral Interface
I was going through an article related to SPI. There was a configuration named 'Daisy Chaining', in case of multiple slaves.
So far, what I have understood about SPI (based on wikipedia) is,
SPI ...
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1answer
64 views
Connecting SATA to SATA [closed]
Is it possible to use the SATA interface to write data to it by PC and use the bus to transmit the data to another receiver SATA board ?
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3answers
89 views
Embedded system-current draw logging
I have an embedded application that wakes up every 15 minutes and performs some specific function for a period of two minutes.
I need to log the current consumption of this specific function on the ...
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4answers
214 views
Wake up MCU on UART RX data
I have several MCU's of which I cannot use the deep-sleep modes, because they cannot wake up on UART data coming in. Are there any components for sale which can solve this? I can imagine something ...
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2answers
195 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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1answer
104 views
General Electronics vs. Embedded programming oriented program [closed]
I've got a choice between two types of Electronic Engineering degrees, as the title says.
One goes the general route, basics of electricity, analog electronic, digital electronic, measuring stuff, ...
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1answer
125 views
GPRS modem gets struck/hangs up when “AT” is entered
I started working on a U-blox LEON-G100 gprs modem connected to the PC terminal through UART. Whatever character I enter into the terminal gets echoed back except "AT". When I enter "AT", the modem ...
13
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2answers
243 views
Is SPI safe to be interrupted?
I'm writing to a microSD card from within my firmware, but it's the lowest priority task, so it can be interrupted by other tasks while it's in the middle of reading/writing.
Now suppose I ...
8
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5answers
894 views
Analyzing Accelerometer data characteristics and designing a filter
I have about 32 seconds worth of accelerometer data of a basic driving scenario 25MPH normal roads along with hitting about 7 potholes and a rough patch of road. The accelerometer is mounted on the ...
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2answers
102 views
AA cells depletion
Currently I have two AA cells in series powering a 3.0v bus line for my application.Recently I am finding that one of these AA cells gets completely dead before the other. What could be the possible ...
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1answer
100 views
ZXCT1009 as a current monitor
I am currently using ZXCT1009 high side monitor for monitoring the current consumption on a bus line for an embedded system we are developing. I am currently using tek scope with Labview for ...
