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# 1   2013-08-18 02:05:46 D13 on Open4 Base

STPrime
Member
Registered: 2011-04-06
Posts: 35

D13 on Open4 Base

Hello,

D13 on the Open4 Base appears to be some kind if light sensor.  D14 located in the same plane is unpopulated.  I was unable to find any reference for them on the schematics.  What are they and how can they be accessed?

Thanks,

STPrime


It is all about coming up with new ways...to do the same old thing.

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# 2   2013-08-19 15:19:09 D13 on Open4 Base

Etienne.C
Administrator
Registered: 2012-12-04
Posts: 71

Re: D13 on Open4 Base

Hello,

Are you sure to see a D13 and D14 light? They doesn't exist, you probably confused with D3 and D4 which are red and green lights.
You can find the schematics of the Open4 base, following this link:
http://www.stm32circle.com/resources/do … v1.2.1.pdf.

You can find a toggle example at c:\Raisonance\Ride\Examples\ARM\Primers

Best regards,

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# 3   2013-09-03 21:20:33 D13 on Open4 Base

STPrime
Member
Registered: 2011-04-06
Posts: 35

Re: D13 on Open4 Base

I'm sure, or pretty sure.  It is on the Open4 board, at the top.  I will take another look and post a picture when I have the unit.

Thanks,


It is all about coming up with new ways...to do the same old thing.

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# 4   2013-09-04 03:43:42 D13 on Open4 Base

STPrime
Member
Registered: 2011-04-06
Posts: 35

Re: D13 on Open4 Base

Hello,

I attached the two images of the front and back of the Open4 board.  The diode D13 is populated and D14 is not.  My first thought is that these are used to sense which card is inserted into the base.  You can also look at a previous project EvoPromer Alternative Energy Controller for the images, I wasn't too sure how to get the images inside this post.

http://www.stm32circle.com/projects/project.php?id=220

http://www.stm32circle.com/projects/image/images/D13%20front.jpg
http://www.stm32circle.com/projects/image/images/Diode13%20back.jpg

Last edited by STPrime (2013-09-04 03:47:34)


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# 5   2013-09-10 12:24:43 D13 on Open4 Base

yrt
Administrator
From: Grenoble-France
Registered: 2008-06-11
Posts: 520
Website

Re: D13 on Open4 Base

Hi,

D13 and D14 are the Leds of the Open4's embedded RLink (respectively Busy and Run function).
You can see the Red one (D13) blinking when you are debugging your application.
D14 is unpopulated on the current version due to a production "bug".

They are not available from the target board application.

Regards

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# 6   2013-09-10 22:32:22 D13 on Open4 Base

STPrime
Member
Registered: 2011-04-06
Posts: 35

Re: D13 on Open4 Base

That was helpful information.  I didn't notice it because the LCD LEDs drown it out and the clear plastic cover diffuses it. 

Thanks,


It is all about coming up with new ways...to do the same old thing.

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