Hardware Revision History And Known Issues; Identifying Product Id And Revision; Revision 3 - Atmel ATMEGA256RFR2 Xplained Pro User Manual

6.

Hardware revision history and known issues

6.1

Identifying product ID and revision

The revision and product identifier of Xplained Pro boards can be found in two ways, through Atmel Studio or
by looking at the sticker on the bottom side of the PCB.
By connecting a Xplained Pro MCU board to a computer with Atmel Studio running, an information window will
pop up. The first 6 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 Kits 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 kit identifier for ATMEGA256RFR2 Xplained Pro is 1784.
6.2

Revision 3

Revision 3 of ATMEGA256RFR2 Xplained Pro is the initial released version.
Known issues
● The low and high byte of the 16-bit CRC value of the information in the user page might be swapped on
serial numbers prior to 1885.
Workaround: If it is neccssary to use the CRC value to verify the data in the user page, compare the
calculated value with both the swapped and non-swapped version of the CRC value present in the user
page.
Atmel ATMEGA256RFR2 Xplained Pro [USER GUIDE] 18
42079C-MCU-05/2013