The reset line on a computer or other digital circuit places the circuit in a well defined initial state. Most microcontrollers have a built-in power-up reset to start the CPU executing code and may also have external resets and watchdog timers to help recover from unexpected events.
Questions tagged [reset]
398 questions
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votes
2 answers
Board occasionally resetting when dropped or knocked
I have a board that consists of
Arduino pro mini (ATMega328P, ceramic resonator, tactile reset button)
SD card
I2C sensors
LTC3525 boost converter (IC, inductor, caps)
Very occasionally, if the board is accidentally dropped or knocked it will…
geometrikal
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0 answers
Why is does my board stop responding periodically when the motor is hooked up?
I have built a stand alone Arduino type board. It will run all day long as long as no actuator is hooked to the relays, the voltage on a voltmeter shows when the motor changes direction properly. The problem is when I actually hook up an actuator…
mScientist
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1 answer
Reset ATECC508A to default?
Is there a way to reset the atecc508a from Microchip Technology to default?
The configuration zone was already locked.
I would appreciate any help. Thank you very much.
Habebit
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2
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1 answer
microchip pic18f: What is the difference between a POR/BOR and other resets
I found similar questions on the internet. some answered that all resets re-initialize the SFR. I don't know if this was tested or concluded. I'm so confused because at http://microchip.wikidot.com/8bit:mclr they state that:
When an external MCLR…
fhlb
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1 answer
Orange Pi zero hardware reset
I have been working on a development board for the Orange Pi Zero platform. I want to add a button which allows to restart the board. Is it possible to implement such functionality?
Marco Svizzeri
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D flip-flop using basic gates + Clear
I'm using Logisim to make basic circuits and they have in-built things such as Counter and D Flip-Flop. The D Flip-Flop looks like this:
It however doesn't show how it's made up of the basic gates (NAND, NOT, etc). I'm wanting to know how to create…
Vbobo
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2 answers
How does the Roland TR-909 reset circuit work
I'm troubleshooting my Roland TR-909 drum machine, which doesn't power on anymore. All of the voltages come up fine, but the reset line stays low. My suspicion is one or more of the components of the reset circuit have failed. Edit: the trace…
mhz
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-1
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Is RST valid while programming with ISP?
First time designing a PCB board whith a MPC82G516AP (8051),I'm using an external Watchdog Timer chip。So is the watchdog reset valid while programming with ISP?
user1423693
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Why is Reset Low True
What is the main reason that reset nets are low true? Is this so that any noise on the GND doesn't reset your system? If it was high true than couldn't you save the little leakage current that is always wasted in the pull-up?
EasyOhm
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