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board is powered on without having to flash and program the device.
The source code for this Quick Start Application is also included on the DVD-
ROM.
The DEMOQE toolkit may also be found at:
http://www.pemicro.com/fixedlinks/demoQEtoolkit.html.
6.2
7
7.1
7.1.1
Serial Accelerometer Application
This microcontroller application samples the state of the on-board three-axis
accelerometer using on-chip A/D converter channels. This data is converted
into ASCII characters and sent out using the serial pins of the QB8 processor.
These serial pins may be connected to either serial port hardware or to P&E’s
virtual serial port (which is part of the Embedded Multilink design). This
connection is controlled by jumpers J6 and J7.
P&E has two PC-based DEMOQE Toolkit applications which allow the serial
port data generated by this application to be graphed. These are documented
in Section 5.4 - DEMOQE Accelerometer Demo Application and Section
5.5 - DEMOQE Serial Grapher Application .
The source code for this microcontroller based Serial Accelerometer
Application is included on the DVD-ROM included with the DEMOQE and also
may be found at http://www.pemicro.com/fixedlinks/demoQEtoolkit.html.
JUMPER SETTINGS
System Power
The QB8 processor may obtain its power from either the on-board regulator, a
2-cell battery pack, or through MCU_PORT J1. The on-board regulator
obtains its input from either the Embedded Multilink circuitry or a 2.5mm barrel
connector. The on-board regulator can regulate the output to either 2.1V or
3V. The DEMO9S08QB8 is fully functional at both voltages. Power input and
voltage selection are achieved by using 3 option headers.
J3 - Regulator Input Selection Jumper
Jumper 3 determines whether the DEMO9S08QB8’s on-board regulator
obtains its power from the DC power jack or from the Embedded Multilink
circuitry. The regulator input selection is mutually exclusive. It prevents power
DEMO9S08QB8 User Manual
23
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