Hardware Revision History And Known Issues; Identifying Product Id And Revision; Revision 3; 12Mhz Crystal Selection - Atmel SAM4E Xplained Pro User Manual

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Hardware Revision History and Known Issues

6.1.

The revision and product indentifier of Xplained Pro boards can be found in two ways; either through

Atmel Studio or by looking at the sticker on the bottom side of the PCB.

By connecting an Xplained Pro MCU board to a computer with Atmel Studio running, an information

window will pop up. The first six digits of the serial number, which is listed under kit details, contain the

product identifier and revision. Information about connected Xplained Pro extension boards will also

appear in the Atmel Kit's window.

The same information can be found on the sticker on the bottom side of the PCB. Most kits will print the

identifier and revision in plain text as A09-nnnn\rr, where nnnn is the identifier and rr is the revision.

Boards with limited space have a sticker with only a QR-code, which contains a serial number string.

The serial number string has the following format:

"nnnnrrssssssssss"

n = product identifier

r = revision

s = serial number

The product indentifier for SAM4E Xplained Pro is A09-2081.

6.2.

Revision 3 is the initially released revision.

6.2.1.

The selected 12MHz crystal FQ5032B-12-C-C-C-200-1 has a load of 20pF, this is outside the

recommended range of 12.5pF to 17.5pF in the ATSAM4E16E datasheet. Using a crystal with loads

outside the recommended range can cause instability when operating the device close to maximum/

minimum parameters for supply voltage and temperature.

Fix/Workaround: None, any new design should select a crystal within the limits specified in the

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