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Olimex Support Forum

OLinuXino Android / Linux boards and System On Modules => A13 => Topic started by: jlucius on June 24, 2014, 09:44:23 AM

Title: How is A13-SOM powered?
Post by: jlucius on June 24, 2014, 09:44:23 AM
Hi

Does anybody know how the A13 SOM is powered?

Is it powered by the micro USB on the shield?

Could not see / find any other power connectors

Thanks.
Title: Re: How is A13-SOM powered?
Post by: JohnS on June 24, 2014, 11:24:47 AM
Probably you should wait until the files are released but it's likely almost the same as A20-SOM whose schematics show how it can be powered.

John
Title: Re: How is A13-SOM powered?
Post by: Insomniac10102 on July 05, 2014, 11:13:32 AM
I've found this:

(https://www.olimex.com/wiki/images/e/e9/A13-SOM-512.png)

First pins on GPIO-1 should help you out.

Link to full-sized image: https://www.olimex.com/wiki/images/e/e9/A13-SOM-512.png (https://www.olimex.com/wiki/images/e/e9/A13-SOM-512.png)
Title: Re: How is A13-SOM powered?
Post by: gunner2002be on July 10, 2014, 02:12:44 PM
hello

i have been having some issues with power as well, I can power the som fine, but the wifi module won`t power on.

I tried injecting power through the 3.3v of the debug UART, 3.3v on the header of the wifi module and 5v on the header of the wifi module, every time the SOM powers on fine, but I never get the power led of the wifi module to light up and the wireless is not recognized, however in all instances the lcd backlight does turn on

anybody have an idea?
Title: Re: How is A13-SOM powered?
Post by: olimex on July 10, 2014, 02:41:21 PM
if you have WIFI shield you should not apply 3.3V externally!
the WIFi shield generate the 3.3V for A13-SOM!
just provide 5V to the WIFI shield from the USB-OTG connector or the 5V pin on the connectors
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