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飞思卡尔无线传感三轴参考设计 (ZSTAR) 设计师参考手册
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飞思卡尔无线传感三轴参考设计 (ZSTAR) 设计师参考手册
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freescale.com
Wireless Sensing Triple Axis Reference design
(ZSTAR) Designer Reference Manual
ZSTARRM
Rev. 0.9
8/2006
Warnings
Safety of Radio Frequency Energy
The manufacturer has evaluated the transmitter for safe operation for uncontrolled use in
the general population. The measured power density at 1 cm is under the threshold
established by the FCC and is not required to be tested for specific absorption rate. The
manufacturer instructs the user that the transmitter should not be handled or placed near
the body continuously for more than 30 minutes while operating.
USA:
NOTE: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
Changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate the equipment.
The antenna(s) used for this transmitter must not be co-located or operating in
conjunction with any other antenna or transmitter.
Canada:
This Class [*] digital apparatus complies with Canadian ICES-003.
Cet appareil numériqué de la classe [*] est conformé à la norme NMB-003 du Canada.
Europe:
TBD
Wireless Sensing Triple Axis Reference design, Rev. 0.9
Freescale Semiconductor 3
Wireless Sensing Triple Axis Reference design
Designer Reference Manual
by: Pavel Lajšner and Radomír Kozub
Freescale Czech Systems Laboratories
Rožnov pod RadhoštČm, Czech Republic
To provide the most up-to-date information, the revision of our documents on the World Wide Web will be
the most current. Your printed copy may be an earlier revision. To verify you have the latest information
available, refer to:
http://www.freescale.com
The following revision history table summarizes changes contained in this document. For your
convenience, the page number designators have been linked to the appropriate location.
Revision History
Date
Revision
Level
Description
Page
Number(s)
May,
2006
0.02 First draft N/A
July
2006
0.9 Language correction, minor updates N/A
Revision History
Wireless Sensing Triple Axis Reference design, Rev. 0.9
4 Freescale Semiconductor
Wireless Sensing Triple Axis Reference design, Rev. 0.9
Freescale Semiconductor 5
Table of Contents
Chapter 1
Introduction
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 MMA7260Q 3-axis Accelerometer Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 2
Wireless Sensing Triple Axis Reference design introduction
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 Featured products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2.1 Triple Axis Accelerometer MMA7260Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2.2 Microcontroller MC9S08QG8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2.3 MC13191 2.4 GHz ISM Band Low Power Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2.4 Microcontroller MCHC908JW32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Chapter 3 Sensor Board description
3.1 Board overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 A/D conversion of XYZ levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2.1 ADC module init: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2.2 ADC measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3 Power management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.1 MC13191 power management features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4 ZSTAR Sensor Board hardware overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.1 Analog connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.2 g-select connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.3
BDM (Background Debug Mode) connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.4 Sensor Board schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4.5 Button connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.6 MC13191 to MC9S08QG8 microcontroller interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.7 MC13191 RF interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.8 Clocking options of MC9S08QG8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4.9 LED indicators connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.4.10 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.5 Bill of Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Chapter 4 USB stick board description
4.1 Board overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2 ZSTAR USB stick Board hardware overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2.1 USB connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2.2.1 Fixed voltage regulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
剩余31页未读,继续阅读
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