Hardware Reference
In-Depth Information
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Eight LEDs
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Eight-position dual inline package (DIP) switch
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Four push button switches
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5-V regulator with DC jack and terminal block for external 9-V battery input
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A speaker to be driven by timer, or DAC or PWM signal for alarm or music
applications
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A dual H-bridge motor driver with motor feedback or rotary encoder interface for
controlling two DC motors or one Stepper motor
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An IR transceiver with an on-board 38-kHz oscillator
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A BDM-in connector to be connected with a BDM from multiple vendors for
debugging
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An opto-coupler output
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A logic probe with LED indicator
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An abort switch for stopping program when program is hung in a dead loop
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A mode switch for selecting four operating modes: EVB, Jump-to-EEPROM, BDM
POD, and Bootloader
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A 4 3 4 keypad
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A form-C relay output rated at 3 A/30 V or 1 A/125 V
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An X-Y-Z accelerometer interface or GP2-D12 distance-measuring sensor interface
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A potentiometer trimmer pot for analog input
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A temperature sensor
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A communication port for a video graphics array (VGA) camera with built-in Joint
Photographic Experts Group (JPEG) compression (camera is optional.)
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A light sensor
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A low-battery detection circuit
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Female and male headers provide access to all I/O pins of the MC9S12DG256
Additional product information about the Dragon12-Plus demo board can be found on
the website at
http://www.evbplus.com.
Wytec also provides the miniDragon-Plus2 demo
board, which is a bare kit that allows the user to add her or his circuit. This demo board has
fewer features than the Dragon12-Plus demo board. The photo of this demo board is shown in
Figure 3.2.
The D-Bug12 is a monitor program designed for the HCS12 microcontrollers. Version 4 of
the D-Bug12 supports the following devices:
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MC9S12Dx256 (x 5 G, P, or T)
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MC9S12A256
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MC9S12Dx128 (x 5 G, P, or T)
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MC9S12H256
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MC9S12A128
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