Datasheet

Page 32
Page 33
1
2
3
4
5
6 8
9
10
11
12
13
14
58
57
56
55
54
53
52
72
69
68
67
66
65
64
63
8 7
9
0
62
61
60
59
71
51
70
6
75
74
73
1 2 3 4 5 6 7 8 9 0
1
2
3
4
5 6
7 8
9
0
C32
100nF
C33
100nF
VCC-3.3
R12
10K
R13
10K
VCC-3.3
ACC ADDRESS
VCC
GND
Res
GND
GND
VCC
7
CS
INT1
INT2
NC
Res
ADD
SDA
SCL
U9
ADXL345
VCC-3.3
VCC-3.3
VCC-3.3
VCC-3.3
AVCC
SDA1-PB7
SCL1-PB6
SDA1-PB7
SCL1-PB6
1
2
3
J1
30 29 28 27 34 33 46
36 35 42 43
44 45 37
50
9
48 49
11
12
3
2
4
3
7 7
24
23
18
17
16
15
14
13
5
6
7
8
10
7 8
1
2
22
21
20
19
38
39 40 4
1
47 31 26
25
7
8 8 8 8 8 8 8 8 8 9 9 9 9 9 9 9 9 9 9
10
PE11 PE10
PE6
VBAT
PC13/TAMPER_RTC
PC14/OSC32_IN
PA10
PA9
PA8
PD9
PE13 PE12
PB13
PB14
PB15
PD8
PE14 PE15
PB5 PB4 PB3 PB7
PD7 PD6
PE5
PE4
PE1 PE0 PB9
PB8
BOOT0 PB6
OSC_IN
PA0-WKUP
VDDA
VREF+
GNDA
VDD
PC3
PA12
PA11
PB12
PC8
NRST
VDD
GND
PE7
PDR_ON(RFU)
VDD
PE2
PE3
PA2
PA1
VCAP
VDD
PC9
PD13
PB10 PB11
PD10
PE8
PB2
PD11
PD14
PD5
PC2
PC1
PC0
PB1
PE9
PD12
PC7
OSC_OUT
PC15/OSC32_OUT
PD15
PC6
PA13
PC10 PA14
VCAP
GND
VDD
PA15 PC11 PC12 PD0
PA6 PA5
PC4 PA7 PC5 PB0
GND
VDD
PA3 PA4
PD1 PD2 PD3
PD4
U1
VREF-1.8
R65
100K
C41 2.2uF
C42
2.2uF
R66 100K
decoupling
capacitors
C5
100nF
C6
100nF
C7
100nF
C8
100nF
E8
10uF
VCC-3.3 VCC-3.3 VCC-3.3 VCC-3.3VCC-3.3
C31
100nF
VCC-3.3
VCC-3.3
J3
J2
STM32F207VGT6
STM32F407VGT6
10. Accelerometer
On board ADXL345 accelerometer is used to
measure acceleration in three axis: x, y and z. The
acceleromer’s function is dened by the user in the
program loaded into the microcontroller. Communication
between the accelerometer and the microcontroller is
performed via the I
2
C 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