[MinnowBoard] elinux-MinnowBoard Digest, Vol 93, Issue 1

[John 'Warthog9' Hawley]

The voltage isn't the point of issue here, it's the amperage.  You
should be able to look at the power supply itself and see what the
amperage is.  If it's not 2.5A or greater (generally speaking) you are
likely getting a brown-out on power on which is why you are seeing D2 blink.

- John

On 12/01/2015 09:23 AM, Ujjwal Gupta wrote:
> Hi John,
> 
> I am using 5.2 V power supply. I checked that I am getting a voltage of
> 3.3 V and 5 V on the board (at the headers).
> 
> Thanks,
> Ujjwal
> 
> On Tue, Dec 1, 2015 at 5:00 AM,
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>     Today's Topics:
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>        1. Minnowboard not booting (Ujjwal Gupta)
>        2. Re: Minnowboard not booting (John Hawley)
> 
> 
>     ----------------------------------------------------------------------
> 
>     Message: 1
>     Date: Mon, 30 Nov 2015 16:24:12 -0700
>     From: Ujjwal Gupta <ujjwal at asu.edu <mailto:ujjwal at asu.edu>>
>     To: elinux-minnowboard at lists.elinux.org
>     <mailto:elinux-minnowboard at lists.elinux.org>
>     Subject: [MinnowBoard] Minnowboard not booting
>     Message-ID:
>            
>     <CA+Y8-xZcEymgNdwDf8QiM08AMM0BZJ_pwpUuXmoqKaAst6odUQ at mail.gmail.com
>     <mailto:CA%2BY8-xZcEymgNdwDf8QiM08AMM0BZJ_pwpUuXmoqKaAst6odUQ at mail.gmail.com>>
>     Content-Type: text/plain; charset="utf-8"
> 
>     ?Hi All,
> 
>     I have a board in which the BIOS doesn't bootup when I switch it ON. ?
>     ?Additionally, nothing comes through a serial debug cable. I see
>     that one
>     blue LED is switched ON (power indicator) and another blue LED blinks
>     sporadically (not sure what this means).
> 
>     Has anyone encountered this kind of problem before?
> 
>     Thanks,
>     Ujjwal
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>     ------------------------------
> 
>     Message: 2
>     Date: Mon, 30 Nov 2015 15:38:56 -0800
>     From: John Hawley <john.hawley at intel.com <mailto:john.hawley at intel.com>>
>     To: elinux-minnowboard at lists.elinux.org
>     <mailto:elinux-minnowboard at lists.elinux.org>
>     Subject: Re: [MinnowBoard] Minnowboard not booting
>     Message-ID: <565CDE10.9070302 at intel.com
>     <mailto:565CDE10.9070302 at intel.com>>
>     Content-Type: text/plain; charset=UTF-8
> 
>     What power supply are you using?  You may just have an under powered
>     supply which is causing it to try and boot, but not quite make it.
> 
>     - John
> 
>     On 11/30/2015 03:24 PM, Ujjwal Gupta wrote:
>     > ?Hi All,
>     >
>     > I have a board in which the BIOS doesn't bootup when I switch it ON. ?
>     > ?Additionally, nothing comes through a serial debug cable. I see that
>     > one blue LED is switched ON (power indicator) and another blue LED
>     > blinks sporadically (not sure what this means).
>     >
>     > Has anyone encountered this kind of problem before?
>     >
>     > Thanks,
>     > Ujjwal
>     >
>     >
>     >
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> 
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>     ------------------------------
> 
>     End of elinux-MinnowBoard Digest, Vol 93, Issue 1
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