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Difference between reset and power cycle

L

Thread Starter

lkay

Joined Dec 29, 2015
1
Lets pick arduino for instance. What is the difference in the system behavior when I hit the rest button and when I power cycle (unplug and plug the power USB)
 
Papabravo

Papabravo

Joined Feb 24, 2006
21,227
A power cycle will almost surely scramble the contents of RAM. A RESET will probably leave the RAM untouched, UNLESS the firmware or the C-startup routine has code to initialize the RAM.
 
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