AVR16EB32 datasheet(29/46 Pages) MICROCHIP

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AVR16EB32 Curiosity Nano

Revision History

User Guide

DS50003605B - 29

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 AVR16EB32 Curiosity Nano: The

MPLAB X IDE Kit Window or the sticker on the bottom of the PCB.

The Kit Window will pop up when connecting AVR16EB32 Curiosity Nano to a computer with MPLAB

X IDE running. The first six digits of the serial number, listed under kit information, contain the

product identifier and revision.

Tip: If closed, the Kit Window can be opened in MPLAB X IDE through the menu

bar Window > Kit Window.

The same information is found on the sticker on the bottom side of the PCB. Most boards will have

the identifier, revision, serial number, and manufacturing date printed in plain text as 02-nnnn\rr

SN: mmmssssss [Manufacturing date], where “nnnn” is the identifier, “rr” is the revision, "mmm" is

the manufacturer, and "ssssss" is the serial number.

The serial number string has the following format:

"nnnnnnrrmmmssssss"

n = product identifier

r = revision

m = manufacturer

s = serial number

The product identifier for AVR16EB32 Curiosity Nano is 02-00618.

5.1.2

Revision 2

Revision 2 is the initially released board revision. It has AVR16EB32 rev. A0 mounted.

5.1.2.1 Flash Verification Fails in MPLAB® X

Verification errors may be reported in MPLAB® X when writing fuses/configuration bits on

AVR16EB32 Curiosity Nano revision 2, which is caused by the debugger incorrectly masking/

protecting the configuration memory of the AVR device. There are several possible workarounds for

this issue. Workarounds 1 and 2 are persistent on the AVR16EB32 Curiosity Nano, while workaround

3 affects only the current project and does not persist on the kit.

Info: You can see this message during the verification of reserved locations

not required to be written for regular operation. You may assume that Flash

programming has succeeded unless seeing a Flash memory verification failure.

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