Reference Designs .. and what is a Product Properties document?

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I have an ATSAM4S xplained kit, it's enough to get started, I now want to design a board around the chip. I'm looking for a reference design, or a document which gives me recommended external components for the crystals, ground decoupling etc. and haven't found one. I have the 1000 page datasheet but that's more about programming and not much about circuit design. In one place, in the USB section, it refers me to the "Product Properties" document, but I can't find that either. Where should I be looking for this information. 

Last Edited: Thu. Oct 15, 2015 - 11:34 PM
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Look at this page:

 

http://www.atmel.com/tools/atsam...

 

See the two little PDF symbols on the page? To the right of the lower one is a "folder" icon. That actually gets you a .zip file and it contains all of Atmel's design files for the 4S Xplained including schematics.

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Thank you - I have seen those and that gives me one implementation of a design, I was looking for something a little more generic which gives me design requirements/recommendations like, for instance, the amount of decoupling to add to Vdd or the external resistance on the USB D+/D- lines or what's expected from a crystal oscillator. Are there any more technical electronic documents available or is it simple enough you just copy the xplain/xplain pro/ed design and all is fine? I still want to know what the 'Product Properties" document referenced in the USB section (40.4) is, I think that may have what I'm looking for. 

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I was looking for something a little more generic which gives me design requirements/recommendations

Ah you mean like AVR040 and AVR042 for AVR?

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Go to the Product Page for the chip, and look at the 'Documents' tab:

 

http://www.atmel.com/devices/SAM...

 

There you'll find

 

Atmel AT03463: SAM4S Schematic Checklist  
(file size: 339KB, 16 pages, revision D, updated: 12/2014)

This application note describes a common checklist which should be used when starting and reviewing the schematics for a Atmel® SAM4S design.

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillatorhttps://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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Yes - something along those lines was what I was looking for. I see the checklist referenced in the next answer (thanks for that awnewell) also, that gives me a bit more info too. If that's all there is, that's all there is. I'll work with that.

 

Still haven't worked out what "For further details on the USB Device hardware implementation, see the specific Product Properties document." in the USB section of the datasheet means, made me think there was a separate per-chip document with compressed detailed specs on it. I'll keep hunting through the library and see what else I find. 

 

I'm coming from a series of chips which had quite detailed reference designs, although they had radios on them and so electrical design was probably quite critical. 

 

thanks

 

 

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Have you contacted Atmel, and/or your Distributor?

 

You contact Atmel via the myAtmel link at top-right of pages on the Atmel site...

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillatorhttps://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...