5.
Hardware Revision History and Known Issues
This user guide provides the latest available revision of the kit. This section contains information about
known issues, a revision history of older revisions, and how older revisions differ from the latest revision.
5.1
Identifying Product ID and Revision
The revision and product identifier of the ATtiny1607 Curiosity Nano can be found in two ways; either
through Atmel Studio/Microchip MPLAB
®
X or by looking at the sticker on the bottom side of the PCB.
By connecting a ATtiny1607 Curiosity Nano to a computer with Atmel Studio/Microchip MPLAB
®
X
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.
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.
The boards with limited space have a sticker with only a QR-code, containing the product identifier,
revision and the serial number.
The serial number string has the following format:
"nnnnrrssssssssss"
n = product identifier
r = revision
s = serial number
The product identifier for ATtiny1607 Curiosity Nano is A09-3252.
5.2
Chip Erase at Low Voltage
This kit supports variable voltage from 1.8-5.1V. When a chip erase of the ATtiny1607 is started, the BOD
is enabled and uses the BODLEVEL set in the FUSE.BODCFG fuse byte. If the BODLEVEL is set higher
than the selected target voltage on the kit, chip erase will fail.
Info:
BODLEVEL0 in the ATtiny1607 has a maximum trigger voltage of 2.0V, which means that
chip erase is likely to fail if the kit voltage is set to 1.8V.
5.3
Revision 2
Revision 2 adds the
Target Power strap
and staggers the holes along the edge of the PCB for convenient
use of pin headers without soldering.
5.4
Revision 1
Revision 1 is the initially released revision with limited distribution.
ATtiny1607 Curiosity Nano
Hardware Revision History and Known Issues
©
2019 Microchip Technology Inc.
User Guide
DS50002897A-page 18
