Questions tagged [hardware]
Computer hardware is the collection of physical elements that constitute a computer system
287
questions
11
votes
3answers
2k views
Can it be proven that running a GPU at high temps is bad for the card?
If you continuously run your graphics card at between 80°C and 90°C (176°F and 194°F) is it actually bad for the graphics card? I.e. does it reduce the life of the card? Can this be proven? Or is it ...
0
votes
0answers
39 views
Issue on charging current while switching two power sources
The circuit is to switch the voltage for battery charging circuit and not allow the solar power to 'other load' circuitry.
The charge current is set to 1A where in this configuration it draws only ...
0
votes
1answer
50 views
stm32 drawing current from 40 outputs at the same time
I have an hardware question about stm32 family.
I am designing a circuit with STM32F103VB. datasheet mentions that i can draw up to 25 mA current per pin(page 37 table 7). I need to drive 40 npn ...
0
votes
2answers
64 views
Software vs hardware-defined GNSS receivers
I am conducting research into the accuracy of smartphone positional fixing accuracy. I have come to understand that smartphones use software-defined receivers rather than hardware-defined receivers. ...
1
vote
1answer
101 views
Why am I getting a red wire for my out?
I am attempting to create an output that goes on for a certain amount of time an then goes low for a certain amount of time and my out simply won't simulate.
Attached is my code, test bench, and ...
0
votes
1answer
46 views
Reverse Engineer DIN 5-pin connector
Summary
I have a digitial guitar amplifier that can be controlled via a footswitch. The footswitch is connected to the amplifier via a DIN 5-pin cable. I want to be able to control the amplifier with ...
0
votes
1answer
73 views
Supplying TTL Signal via USB
I have two pieces of hardware I'd like to interface with via USB. The first are 2002 Series Actuated Valves and the second is a Mass-Flo Controller for regulating gas exchange. To my (admittedly ...
0
votes
1answer
65 views
Reading data from an iPhone 5 [closed]
A close person got hit by a car and died a few years ago. The persons iPhone flew trough the air. The police was not able to turn it on and mentioned that it would be impossible to collect data from ...
12
votes
6answers
4k views
What kind of hardware implements Fourier transform?
I looked around online but I found nothing relevant. It is very difficult for an electronic device to decompose a signal in different frequencies.
How this is done at the bare metal level?
Any ...
0
votes
0answers
41 views
Logic Style Level Vs Hardware Level
In the book: Advanced DPA Theory and Practice: Towards the Security Limits of Secure Embedded Circuits 1, it is explained that the countermeasures against Side-channel Cryptanalysis could be ensured ...
-2
votes
3answers
96 views
Step up 5V to a range of 7V - 12V [closed]
I am working with the STM32 MCUs and I wish to step up a 5V pin to a range between 7V and 12V. In summary I wish to power the second Board from the first board. Thanks for any reply.
1
vote
0answers
24 views
Part number pin for socket programming
I'm developing a board using the Omega2 and I need a socket for the software uploading.
I found this great video: https://youtu.be/aoYadArVJPw
I need these pins at 0:25 sec ; does anyone knows the ...
0
votes
1answer
40 views
Solar variation tolerance for a solar panel
How to estimate average variation of input solar radiation that would be tolerable for a given solar panel? On what parameters will it depend?
0
votes
1answer
55 views
Cache programming techniques
I am trying to understand hardware Caches. I have some understanding, and I would like to ask if my understanding is correct.
I understand that there are three types of cache mapping; direct, full ...
0
votes
3answers
107 views
Are creepage and clearance value in common standard relative to ground?
So I have been researching creepage and clearance for a few weeks now and I think I have a pretty good understanding of the concepts. However what I do not understand is some of the interpretations of ...
0
votes
2answers
81 views
Measure laser with photoresistor (LDR)?
I want to make a simple setum, where I can measure the opacity of air. I want to use a simple laserbeam, which I shoot across the room, and on the other side I want to measure how much is blocked/...
0
votes
1answer
82 views
What program would be appropriate for designing a reimplementation of the TurboGrafX16 at gate level?
To be clear, I'm looking for a program I could use to redesign the TurboGrafX hardware at gate level, but to gate to gate, just for functionality.
Also, given that I'm interested in GPU design, what ...
2
votes
0answers
86 views
Why is 3.5 mm audio jack so long (about 19 mm)? [closed]
The designers of 3.5 mm audio jack made the decision to keep it's length long (about 19 mm). They could have easily gone shorter lengths. Does longer length provide some noticeable improvements?
From ...
1
vote
3answers
83 views
Micro programming and hard wiring
I have a question about the details of microprogramming and hard wiring in CPU architecture.
In hardwiring, we write a code, the compiler translates it to the ISA, then the ISA is run in the hardware....
6
votes
5answers
2k views
UART- a protocol or hardware? [closed]
Some say UART is hardware, some say UART is one of the serial communication protocol.
UART is a protocol
UART is a protocol
UART is Hardware
UART is Hardware
0
votes
2answers
73 views
Simulate Arduino keypad with Arduino
I came up with idea to create a simple keypad lock using this ( Keypad Matrix 3x4 https://grobotronics.com/keypad-12-button.html?sl=en https://learning.grobotronics.com/el/2013/07/using-a-3x4-keypad/ ...
-1
votes
2answers
134 views
How do we find the bandwidth of a bus?
The data width and cycle rate are used to determine the bandwidth, or the total amount of data that the bus can transmit. An 8-bit bus (1-byte data width) that operates at a cycle rate of 1,000 MHz (1,...
1
vote
2answers
384 views
24 bit adc to read +/-10V analog input signal
I need to read a sensor data which gives analog output(range is +10V to -10V) and convert it to digital form using 24 bit ADC and then store it to a memory card. I have some experience with PIC ...
0
votes
3answers
58 views
Hardware requirements for 10Gbps line rate packet processing
How do I calculate the horse power required for worst case packet processing scenarios?
First, a little more background, I'm building a device for packet analysis. My test box currently runs on Linux ...
0
votes
2answers
90 views
What properties should I look for in a microcontroller if I just want to work with incoming 16 bit data?
I am very new to picking microcontrollers for projects. I have a project in which I have 16-bit data coming in from an amplifier/ADC. Simply put, I would like the microcontroller (very low power and ...
1
vote
2answers
635 views
mips single-cycle branch verilog
I'm fairly new to Verilog, hardware design and computer architecture. Nevertheless, I've had a go at designing a simplified MIPS processor. It seems to mostly work fine but whenever I simulate it, it ...
2
votes
1answer
130 views
Why overflows are omitted in the non-restoring hardware binary division algorithm?
I'm reading a book about a non-restoring binary division algorithm, for example 52_octal divided by 41_octal:
...
0
votes
1answer
88 views
How to build (from scratch) a GFCI Circuit? [closed]
I am looking to understand what is the circuit inside a Ground Fault Current Indicator (GFCi). What does the circuit look like?
Simple google search is not yielding good results about the guts of it.
0
votes
2answers
188 views
Automotive circuit to power ATTINY
Trying to make a simple but reliable 15-12v to 5v circuit to power the ATTINY85 from an automobile (15v-12v), wondering if I have the right components and ratings, I don't know a lot about circuit ...
0
votes
2answers
65 views
Custom Tab-Shaped Plug
I'm designing a device that plugs into a base and am looking for clip-like part that will take a metal tab and transfer a small current (5V) to an LED in the device. The user should be able to pull ...
-3
votes
3answers
79 views
verilog assign memory in a memory
I want to assign a memory 64x6 in a memory 64x6 by saying that all the 64 rows in memory_2 will be equal to all the 64 rows in memory_1, how to make that in verilog ?? knowing that it is very easy in ...
0
votes
1answer
47 views
What is a solution to representing bits physically? (on a cartridge, to be read by the cartridge holder… like a printer)
I am trying to recreate the sort of microchips that are on printer cartridges so that I can make cartridges that can have their data programmed and read? I only need to store 8 bits, so I was thinking ...
0
votes
1answer
114 views
GPU Shader Hardware Requirements Question
I have a question which I hope is not out of the scope of this branch of the exchange network and is a fair question (to be fair I have provided a block diagram on what I have so far) on the "basics" ...
3
votes
2answers
155 views
What happens when Schottky diode is protecting a pin from overvoltage?
If you are using a Schottky diode to protect an input pin from a voltage of greater than +5V, where the diode is connected (in the appropriate direction) between the pin and the +5V Vcc, doesn't that ...
4
votes
3answers
506 views
Altium parts management in a small startup
I recently joined a small startup as the only HW designer (working in Altium 18) and am looking for ways to optimize my design time without having access to a full-fledged CAD team. In my previous ...
0
votes
3answers
133 views
Low risk entry into CPLD/FPGA design? [closed]
I have a possible project coming up that looks like it needs a small amount of digital logic (to generate some synchronous timing/control signals). Speed is not that high, in the low megahertz.
My ...
1
vote
2answers
66 views
Hardware triggering multiple devices from a single source for long distances
I need to trigger remote devices through their hardware trigger inputs simultaneously (within 1 ms) from a single trigger source which has a timer output. So basically the 0/5V pulse-train at around ...
0
votes
2answers
160 views
Why are hardware inverters so prevalent?
I'm working on a flight control system that uses SBUS (a serial protocol), and the slave transmits inverted, so I had to invert it with a hardware inverter.
This isn't that big of a deal, but I'm ...
0
votes
1answer
58 views
How to receive data from RS-422 or RS-232 device in linux
I'm very new in this linux device driver and communication things. If i have to connect this kind of devices with a computer, and receive the data, than how should i start it? should i create a device ...
1
vote
3answers
98 views
Tamper resistant housing methods
When creating electronic devices there are times that we want to make it difficult for an unauthorized person to open the device.
I was wondering where there might be a list of methods or common ...
0
votes
1answer
371 views
Computer coil whine nightmare [closed]
I'm having a lot of trouble with GPU coil whine (electronic buzzz).
Tested on:
4 GPUs GTX 770, GTX 970, GTX 1070, GTX 1070 Ti.
3 PSU HX620W, RM750i, EVGA 600W
3 mobos, Asrock and Gigabyte
I'm ...
0
votes
0answers
140 views
What is the role of DE input of ADV7511 HDMI video controller?
I need to understand the data, DE, VSYNC, HSYNC and CLK inputs of ADV7511 video controller. I need them to program FPGA card (Xilinx Kintex KCU116) that has this video chip. FPGA manual says it uses ...
-1
votes
2answers
58 views
unidentifiable phone component [closed]
I've been having a phone display problem which makes the display unreadable as seen in the images, but still usable (the top of the screen works, so it probably is a hardware problem).
I did some ...
6
votes
2answers
2k views
What is a Programmer's Model?
The manual of a computer processor usually includes a description of something called programmer's model. This section normally presents the core registers of the processor, operating modes, ...
1
vote
1answer
105 views
Ethernet transformer differences
Good morning,
I have a design using these magnetics over here to filter and isolate the ethernet signal: https://www.mouser.com/ds/2/336/-515468.pdf
And I have this other component as an alternative:...
-1
votes
3answers
229 views
What could one do with a 4 BIT computer made out of discrete logic gates? [closed]
I want to manually program the 4 bit computer . (Without another computer). I want it to display a message on a LCD display. Let's say a Hd44780 display or a Nokia display. Have a nice day.
Here ...
8
votes
5answers
2k views
GPS QA during manufacturing
Testing and integration engineers on electronics.stackexchange
How do you quality check if a GPS module and its subsystems are up to the mark during manufacturing? ...
1
vote
1answer
140 views
Device for toggling power to another device via raspberry pi GPIO?
So I have a PTZ camera and a siren. What I'm trying to do is trigger the siren when the camera detects motion.
The camera hooks up via PoE, but the siren just has a 12 volt connection, so it has to ...
1
vote
1answer
132 views
What equipment do I need to reprogram an old garage opener remote?
I recently took an interest into hardware programming, and instead of buying something like an arduino I was wondering if I can reprogram the microcontrollers on old garage remotes or tv remotes. I ...
2
votes
1answer
526 views
Does the Low State in NE555 go to GND?
Here is the first schematic that I created : .
The Vcc is at 5.1V and I a self made using the LM317, Works Fine.
When I checked the Output with the Multi-meter I use., I was getting a high state of ...
