A13-Olinuxino-WiFi - First Steps

Ricardo Brandão · January 20, 2013, 12:09:49 AM

Hi all,

I acquired a A13 with WiFi and tried to boot it.

First with VGA:
. NAND Boot: It appears an Android Logo and after nothing happens
. SD Bood: Nothing happens.

So I connect a USB-Serial.

Then I got the boot messages on the console, but I didn't get the prompt in both cases.

The step-by-step and logs are on my blog: http://www.programonauta.com.br/en/a13-olinuxino-wifi-fisrtsteps/ (Sorry for poor english).

By the way, how can I connect it through WiFi?

Thanks

Ricardo

jwischka · January 20, 2013, 12:21:36 AM

Do you happen to have a 4gb card? If so, you might flash one of my images on it, to make sure that it's not a problem with the image you have (Linux). Also, you might move your UART to UART0 instead of UART1 (I would try this first).

Very good step by step post though - much easier to see exactly what you are doing.

Quote from: Ricardo Brandão on January 20, 2013, 12:09:49 AM
Hi all,

I acquired a A13 with WiFi and tried to boot it.

First with VGA:
. NAND Boot: It appears an Android Logo and after nothing happens
. SD Bood: Nothing happens.

So I connect a USB-Serial.

Then I got the boot messages on the console, but I didn't get the prompt in both cases.

The step-by-step and logs are on my blog: http://www.programonauta.com.br/en/a13-olinuxino-wifi-fisrtsteps/ (Sorry for poor english).

By the way, how can I connect it through WiFi?

Thanks

Ricardo

Ricardo Brandão · January 20, 2013, 12:30:20 AM

Jwischka,

My card is a Samsung 2GB that I bought from Olimex with board.

To move from UART1 to UART0 I must solder a connector on the board (beside GPIO-1). Correct?

Ricardo

olimex · January 20, 2013, 12:35:05 AM

what power supply do you use?

Ricardo Brandão · January 20, 2013, 01:52:29 AM

Power Supply: 12V / 500mA

jwischka · January 20, 2013, 06:03:44 AM

Quote from: Ricardo Brandão on January 20, 2013, 12:30:20 AM
Jwischka,

My card is a Samsung 2GB that I bought from Olimex with board.

To move from UART1 to UART0 I must solder a connector on the board (beside GPIO-1). Correct?

Ricardo

I don't think so? I have a Rev. B board, but my uart0 is on the UEXT connector.

Do you have a 4GB card that you could burn a different image to? I wouldn't burn it on top of your "stock" card.

JohnS · January 20, 2013, 10:17:23 AM

I have a Rev C WiFi and the uart with the pins on the board top near the VGA is the right one.
Just works. 115200 baud.

I agree it's best not to overwrite your current SD card if you have another.

I'd start with the headless build Jeff just sent me as it's the ONLY one that has worked for me (except when I could have a LiPo connected).

John

JohnS · January 20, 2013, 01:48:42 PM

Extra: with Android, what happens on the VGA monitor when you boot and watch it for a while?

Does the Android logo animate (change its highlight)?

Do you get past the logo to the Android screen (dark blue)? Do you have the padlock?

jwischka · January 20, 2013, 02:46:21 PM

Quote from: JohnS on January 20, 2013, 10:17:23 AM
I have a Rev C WiFi and the uart with the pins on the board top near the VGA is the right one.
Just works. 115200 baud.

I agree it's best not to overwrite your current SD card if you have another.

I'd start with the headless build Jeff just sent me as it's the ONLY one that has worked for me (except when I could have a LiPo connected).

John

Lovely how things change - but yes, I'd try a different image, just to eliminate that.

Ricardo - let me know if you need the build I sent John

vinifr · January 20, 2013, 04:09:24 PM

Hi Ricardo,

There is something strange here...

You connected the serial cable on UART0 (UART1 is written but it is actually the UART0! Check schematic), but should have connected to UART1! Use connector UEXT,pins 1, 2, 3 and 4. http://dl.dropbox.com/u/22273442/A13/uart1.png
You can not use the UART0 and SD simultaneously. https://www.olimex.com/forum/index.php?topic=420.msg2449#msg2449

UART1: http://dl.dropbox.com/u/22273442/A13/UEXT_UART1.jpg

JohnS · January 20, 2013, 04:43:56 PM

I think some changes were done, and bear in mind that ttyS0 is uart1 not uart0

John

Ricardo Brandão · January 20, 2013, 06:34:56 PM

Hi guys,

I post a video with a VGA monitor connected, so JohnS you can see what happens (or not happens) after the Android Logo.

https://plus.google.com/photos/110946956363850223802/albums/5835564081207872449/5835564086547575842?authkey=CJHe27LAkLLj_gE

Vinicius, I tried to connect in UEXT and the same happens. But once I got a message that the board will boot again in 10 secs.

Thanks a lot.

Ricardo

Ricardo Brandão · January 20, 2013, 06:38:12 PM

Hi,

I'll try to build another image too. Tomorrow I'll buy a new SD to don't rewrite this one.

Jwishka, yes I appreciate if you can send me an image.

Thanks

Ricardo

vinifr · January 20, 2013, 06:50:48 PM

Quote from: Ricardo Brandão on January 20, 2013, 06:34:56 PM
Hi guys,

I post a video with a VGA monitor connected, so JohnS you can see what happens (or not happens) after the Android Logo.

https://plus.google.com/photos/110946956363850223802/albums/5835564081207872449/5835564086547575842?authkey=CJHe27LAkLLj_gE

Vinicius, I tried to connect in UEXT and the same happens. But once I got a message that the board will boot again in 10 secs.

Thanks a lot.

Ricardo

Can you post log error?

JohnS · January 20, 2013, 07:25:39 PM

Quote from: Ricardo Brandão on January 20, 2013, 06:34:56 PM
Hi guys,

I post a video with a VGA monitor connected, so JohnS you can see what happens (or not happens) after the Android Logo.

https://plus.google.com/photos/110946956363850223802/albums/5835564081207872449/5835564086547575842?authkey=CJHe27LAkLLj_gE

Vinicius, I tried to connect in UEXT and the same happens. But once I got a message that the board will boot again in 10 secs.

Thanks a lot.

Ricardo

Can you describe it a bit please as I can't view it for some hours / tomorrow at the earliest otherwise.