Appendix A: Cr8000 Development Kit User Guide; Development Board - Code Reader 822 Series Integration Manual

8 – APPENDIX A: CR8000 Development Kit User Guide
J1 C1
8.1 – CR8000 Development Kit User Guide
Development Kit Overview
The development kit includes everything needed to integrate the
Scan Engine into a target design. We provide a complete Scan Engine,
development breakout board and all documentation required to quickly
evaluate and integrate the Scan Engine.
NOTE: The CR8000 Development kit can be used with the CR8221 and
CR8222. If evaluating the CR8222 with a CR8000 development kit, then
extra caution must be taken to ensure supply voltages do not drop below the
specified 2.97 V. Going below the specified minimum voltage will cause a
reset on the CR8222.
Scan Engine
The development kit comes with a complete Decoded Scan Engine that
includes the imager and decoder board integrated into a single assembly.
Please see the Mechanical Specifications section for details on this
assembly.

Development Board

The development board is the main user interface to the kit. It provides
access to all features of the Scan Engine including the debug and
development resources available.
Interface
The CR822x connects to the development board via J23.
D026227_08 CR822x Single Board Decoded Scan Engine Integration Guide
RX TX
TX RX
RX
D–
C3
LED0
D+
LED1
RTS
TX
TRIGGER
CTS
POLARITY
BOOT
SELECT
D1
J7
J8
3 2 1
J9
POLARITY
J10
RX
J11
TX
J12
CTS
J13
RTS
J14
LED0
J15
BEEPER
J16
LED1
J17
WAKE UP
J18
TRIGGER
J5
J6
Trigger/Wake Up Switches
SW1 and SW2 allow the user to wake the unit from Sleep Mode and
trigger a barcode read, respectively. If the unit is in a sleep state when
the trigger is pushed, the Scan Engine will automatically wake up before
performing a barcode read.
Scan Interface
J1 interfaces to an RJ-50 connector that carries both USB and RS232
signals to an external interface. The connector also provides a trigger
signal to activate the CR822x remotely.
Indicators
The development board includes a speaker (SPK1) for audible indication
as well as a bi-color LED (D1) for visual indication.
Configuration Jumpers
A group of jumpers allow the development board to re-configure and
access different features of the CR822x. J7 and J8 configure auxiliary
serial port features that appear on J2 and J3. J5 configures serial port
polarity. Finally, the CR822x host port configuration can be changed via
the jumper block J9-J18.
Auxiliary Headers
J2 and J3 provide auxiliary and debug serial communications to the
CR822x.
J23
J21
J25
SW1
WAKE UP
SW2
TRIGGER
J22
J20
EXPANDED
ILLUMINATION
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