User's Manual

Chapter 1 — Using the Computer
20 CN50 Mobile Computer User’s Manual
• If the microSD card is bootable, your CN50 boots from the
card.
• If the microSD card contains operating system upgrade
files, the upgrade process automatically starts. For more
information, see “Upgrading the System Software” on
page 46.
For troubleshooting information, see “Troubleshooting the CN50”
on page 52.
Enabling the Integrated GPS on the CN50
The CN50 comes equipped with an integrated Global Positioning
System (GPS) receiver, it can deliver standards-based National Marine
Electronics Association (NMEA) data strings to GPS applications.
Intermec recommends that you use the GPS Intermediate Driver
(GPSID) instead of directly accessing the GPS hardware. The GPSID
is a Microsoft software component that interacts between
applications and the GPS hardware.
Using the GPSID allows Intermec support for Extended Ephemeris,
which enhances GPS performance by:
• reducing the amount of time it takes your GPS receiver to acquire
a fix.
• eliminating the need to obtain precise satellite data information
from the GPS satellites.
And, as a Microsoft software component, the GPSID also provides
these benefits:
• Allows multiple applications to simultaneously access the GPS
data stream.
• Provides access to GPS data without requiring applications to
recognize and parse NMEA syntax.