Bug 9300 - AFTER POWER ON, LED(D1)ON BUT LED(D2)flicker
Summary: AFTER POWER ON, LED(D1)ON BUT LED(D2)flicker
Status: RESOLVED MOVED
Alias: None
Product: MinnowBoard MAX
Classification: Hardware Platforms
Component: hw-minnowmax (show other bugs)
Version: 2C A2
Hardware: MinnowBoard Multiple
: Medium normal
Target Milestone: Production Release
Assignee: John 'Warthog9' Hawley
QA Contact:
URL:
Whiteboard:
Depends on:
Blocks:
 
Reported: 2016-03-18 03:40 UTC by keral
Modified: 2017-06-13 18:01 UTC (History)
1 user (show)

See Also:
OS type for building Yocto: ---
Type of Regression: ---
Verified:
Documentation change: Don't know

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Description keral 2016-03-18 03:40:24 UTC 
when power on ,the led(D2)is flicker.I have changed the U35,but it doesn't work.
Comment 1 John 'Warthog9' Hawley 2016-03-18 06:43:40 UTC 
Without knowing more, it's going to be awfully hard to diagnose.  I'm going to guess you are using an under powered power supply (we recommend a 5V 2.5A supply), or you've added something to the low speed expansion header that's miss-wired, and causing the looping.

Can you more fully describe your setup, what's going on with the flicker (how quickly would be potentially useful), and check your power supply?
Comment 2 keral 2016-03-18 07:21:32 UTC 
My Power adapter is 5V 3A,and I have not added anything to the low speed expansion header. 
I have two boards go wrong, the D2 of the boards one flicker one time  about 5s, the other one flicker about five times one second  .
Comment 3 keral 2016-03-18 08:12:07 UTC 
My third one can work well on the 5v 3A.
Comment 4 Stephen K Jolley 2017-06-13 18:01:14 UTC 
We are no longer tracking in Yocto Project Bugzilla MinnowBoard and MinnowBoard-MAX HW and firmware bugs.