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; 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 identifier for SAM L22 Xplained Pro is A09-2547.
6.2.
Revision 4
Touch SLCD1 Xplained Pro (ATTSLCD1-XPRO) is bundled and shipped together with revision 4 of SAM
L22 Xplained Pro.
ATSAML22N18A device revision B (or later) is mounted on revision 4 of SAM L22 Xplained Pro.
Pin-out changes have been made to the kit to get the correct functionality on the headers and connectors
for revision B of the ATSAML22N18A device. See revision 2 for more details.
6.3.
Revision 2
Revision 2 is the initially released revision.
Segment LCD1 Xplained Pro (ATSLCD1-XPRO) is bundled and shipped together with revision 2 of SAM
L22 Xplained Pro.
ATSAML22N18A device revision A is mounted on revision 2 of SAM L22 Xplained Pro.
Known issues:
•
PTC functions that only work for revision A of the ATSAML22N18A device:
–
PC00 PTC/XY[4]
–
PC01 PTC/XY[5]
•
VBAT input pin:
–
Revision 2 of SAM L22 Xplained Pro does not have decoupling capacitors mounted.
Atmel SAM L22 Xplained Pro [USER GUIDE]
Atmel-42474B-SAM-L22-Xplained-Pro_User Guide-12/2015
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