5 Revision History
Hardware and Document Revision History.
5.1 Hardware Revision History and Known Issues
This user guide provides information about the latest available revision of the board. The following sections contain information about known issues, a revision history of older revisions, and how older revisions differ from the latest revision.
5.1.1 Identifying Product ID and Revision
There are two ways to find the revision and product identifier of the AVR32SD32 Curiosity Nano: The MPLAB® X IDE Kit Window or the sticker on the bottom of the PCB.
The Kit Window appears in MPLAB X IDE when connecting AVR32SD32 Curiosity Nano to the computer.
The first nine digits of the serial number, listed under kit information, contain the product identifier and revision.
The same information is found on the sticker on the bottom side of the PCB. The data matrix code on the sticker contains a string with the product identifier 02-01254, revision, and serial number.
The string in the data matrix code has the following format:
"nnnnnnnrrsssssssss"
n = product identifier
r = revision
s = serial number
5.1.2 Revision 2
Revision 2 is the initially released board revision.
Known issue: The 32.768 kHz crystal load is not optimal and may produce frequencies beyond the ±20 ppm specified in the crystal’s specifications. A workaround is to replace the two load capacitors, C104 and C105, with 3.9pF NP0 (C0G) capacitors.