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Topic: Loop Back Test - Sticky? (Read 35 times) previous topic - next topic

CrossRoads

Put a piece of wire in the header pin labelled Reset, and the other end in one of three headers pins labelled GND.


Designing & building electrical circuits for over 25 years. Check out the ATMega1284P based Bobuino and other '328P & '1284P creations & offerings at  www.crossroadsfencing.com/BobuinoRev17.
Arduino for Teens available at Amazon.com.

madworm

There's no picture of the wire!

Before a wire can be used, it must be properly declared and defined.
• Upload doesn't work? Do a loop-back test.
• There's absolutely NO excuse for not having an ISP!
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My projects: RGB LED matrix, RGB LED ring, various ATtiny gadgets...
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stargazer2050

Well, this explains the test but not what to do when it fails, so its really not an explanation at all

Coding Badly


@stargazer2050: If you would like help or to affect a change you will have to provide more information.

athanasius

not even stickey

OSX 6.5.8 (fresh install)

Board 1 -- Arduino Mega Failed loopback test
Board 2 -- Arduino Mega Failed loopback test
Board 3 -- Arduino Uno Failed loopback test
Board 4 -- Arduino Uno Passed loopback test

Arduino 1.0


I have three boards which are no longer working: They were working fine at least 12 hours ago:

all three failed the loopback test. One did not even register with a usb serial connection.

This has been tried on at least 3 computers so far

any advice would be helpful

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