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D027173_07 CR821X Dual Board Decoded Scan Engine Integration Guide
8 – APPENDIX A: CR8000 Development Kit User Guide
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.
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.
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 CR821x 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 CR821x. J7 and J8 configure auxiliary
serial port features that appear on J2 and J3. J5 configures serial port
polarity. Finally, the CR821x 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
CR821x.
J1
C1
C3
J7
J8
3
2
1
J9
J21
J25
J22
J20
J23
J10
J11
J12
J13
J14
J15
J16
J17
J18
C2
J4
TX
TX
RX
RX
D–
LED0
D+
LED1
RTS
TX
TRIGGER
TRIGGER
WAKE UP
LED1
BEEPER
LED0
RTS
CTS
SW1
WAKE UP
SW2
TRIGGER
VPI Eng
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C005425_02.pcb 20 M
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TX
RX
POLARITY
CTS
POLARITY
BOOT
SELECT
RX
J2
D1
J5
J6
F1
J19
J24
J3
U1
SPK1
U2
