mikroElektronika mikromedia for Stellaris M3, Руководство пользователя

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VCC-3.3 AVCC
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72
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3
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1
2
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LM3S9B95
81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
PA7 PA6 ERBIAS VDD PF4 PF5
PE5
PE4
LDO
VDD
GND
VDD
PB1/USB0VBUS
VDD
VDD TXOP
PJ4
PJ5
PJ6
PJ7
GND TXON
PB5 PB6 PB7
VDD
VDDC
PJ1
PH2 PH3
GNDA
VDDA
PD5 PD4 PE3 PE2
GND
PB4
PD2
PA2
PC6
PC7
GND
VDD
PG0
PG1
USB0DP
USB0DM
NC
PB3/I2C0SDA
PJ0
PD1
PD0
VDDC
PD6 PD7
PE7
PE6
PA1 PA0
PC4
PC5
OSC1 PJ3
PB0/USB0ID
PF2
PF0 OSC0
GND
PJ2 RXIN
MDIO
PF1
PH0
XTALNPHY
XTALPPHY
PH7
PG7 RXIP
PF3
RST
PH1
PA5 PA4 PA3
PD3
GND
PH6
PH5
PB2/I2C0SCL
PC2 PH4
USB0BIAS
PE0
PE1
PC3 PC1 PC0
VDD
GND
U1
SDA0-PB3
SCL0-PB2
R61
9K1
E9
10uF
VCORE
VCORE
C32
100nF C33
100nF
VCC-3.3
R12
10K R13
10K
VCC-3.3
ACC ADDRESS
1
2
3
VCC
GND
Res
4
GND
5
GND
6
VCC
7
CS
8
INT1
9
INT2
10
NC
11
Res
12
ADD
13
SDA
14
SCL
U9
ADXL345
VCC-3.3
VCC-3.3 VCC-3.3
SDA0-PB3
SCL0-PB2
1
2
3
J1
SMD JUMPER
10. Accelerometer
On board ADXL345 accelerometer, among other
features, can be used to measure acceleration in
three axis:
x , y , and z . The accelerometer’s function
is defined by the user in the program loaded into the
microcontroller. Communication between the accelerometer
and the microcontroller is performed via the
I2C interface.
You can set the accelerometer
address to 0 or 1 by re-soldering the
SMD jumper (zero-ohm resistor) to the
appropriate position. Jumper is placed
in address 1 position by default.
Figure 10-2:
Accelerometer
connection schematics
Figure 10-1:
Accelerometer
module