[P3] USB Screen capture

Is there a specific type of thumb drive that is required by the P3SVGA in
order for the USB screen capture to work?

I've tried 1GB, 2GB, and 64GB thumb drives, and as soon as any of them are
plugged in, the P3SVGA reports "DEVICE NOT SUPPORTED".

P3SVGA firmware rev's are:
MCU: 01.26
SVGA: 01.16
FPGA 0-4: 01.04

tnx & 73,
Dale WA8SRA

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[Paul Saffren N6HZ]

Hi Dale,

Most USB thumb drives are supported.  For example I am using both name brands like Sandisk as well as cheapo no-name eBay specials, which work fine.    A few drives do not work, and unfortunately the only way to tell if one works is to plug it in.  The capacity should not matter.    Just curious, what brand and model are the ones you are trying?  Maybe try a different brand.   Also note that the SVGA USB port does not support hubs.   If you're still having trouble, give me a call at the factory.

73,

Paul

[Robert Wright]

What about the drive formatting?  I'm guessing NTFS is not supported.  What about FAT16 vs. FAT32?

73, Bob N7ZO

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Paul Saffren N6HZ
Sent: Monday, April 08, 2013 8:55 AM
To: [hidden email]
Subject: Re: [Elecraft] [P3] USB Screen capture

Hi Dale,

Most USB thumb drives are supported.  For example I am using both name brands like Sandisk as well as cheapo no-name eBay specials, which work
fine.    A few drives do not work, and unfortunately the only way to tell if
one works is to plug it in.  The capacity should not matter.    Just
curious, what brand and model are the ones you are trying?  Maybe try a
different brand.   Also note that the SVGA USB port does not support hubs.  
If you're still having trouble, give me a call at the factory.

73,

Paul




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[Paul Saffren N6HZ]

Bob,

Correct, the file system running on the USB stack on the SVGA only supports FAT16 and FAT32 disk formats.  Inserting a drive using the NTFS format will result in the message "Error initializing device".  

73,

Paul

[Robert Wright]

Thank Paul,

It is good that the wrong format message is distinctly different than the "DEVICE NOT SUPPORTED" message.  I originally posted with the thought that this might be Dale's problem, but it is not.

73, Bob N7ZO


-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Paul Saffren N6HZ
Sent: Monday, April 08, 2013 9:44 AM
To: [hidden email]
Subject: Re: [Elecraft] [P3] USB Screen capture

Bob,

Correct, the file system running on the USB stack on the SVGA only supports
FAT16 and FAT32 disk formats.  Inserting a drive using the NTFS format will result in the message "Error initializing device".  

73,

Paul




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Hi Paul,

Thanks for the info. Two of the drives were very inexpensive MicroCenter
devices, and those were both formatted as FAT32. When inserted, the P3SVGA
reports "DEVICE NOT SUPPORTED". I tried reformatting both, and no change.

The third was a Patriot 'Rage' 64GB device, formatted as FAT32, and when
inserted, the P3SVGA reports "Error Initializing Device". I don't want to
reformat this device, so I'll have to try something else.

Thanks,
73 Dale
WA8SRA

Do you know of a particular mfg/model that works?

> Hi Dale,
>
> Most USB thumb drives are supported.  For example I am using both name
> brands like Sandisk as well as cheapo no-name eBay specials, which work
> fine.    A few drives do not work, and unfortunately the only way to tell
> if
> one works is to plug it in.  The capacity should not matter.    Just
> curious, what brand and model are the ones you are trying?  Maybe try a
> different brand.   Also note that the SVGA USB port does not support hubs.
> If you're still having trouble, give me a call at the factory.
>
> 73,
>
> Paul
>
>
>
>
> --
> View this message in context:
> http://elecraft.365791.n2.nabble.com/P3-USB-Screen-capture-tp7572317p7572330.html
> Sent from the Elecraft mailing list archive at Nabble.com.
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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[gm3sek]

Of the four USB drives tried here, the only one that failed to work was
the newest which was USB3 compatible. Has anyone had success with a USB3
drive?

Even among the drives that did work, there were dramatic differences in
the time needed to copy the screen image, ranging from 45-50 seconds
down to 20 seconds.

73 from Ian GM3SEK


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