DocID025151 Rev 2
53/70
UM1668
Schematics
69
Figure 34. CAN, MicroSD Card and IO expander
STMicroelectronics
Title:
Number:
Rev:
Sheet
of
B.2(PCB.SCH)
Date:
7/24/2013
CAN1_TX
CAN1_RX
D
1
GND
2
VCC
3
R
4
Vref
5
CANL
6
CANH
7
RS
8
U14
SN65HVD230
+3V3
+3V3
R158
120
JP1
1
3
2
1
JP1
0
+3V3
R162
0
R170
0
R166
[N/A]
Default
setting:
1<->2
Default
setting:
Open
MB1045
11
16
STM324x9I-EVAL
CAN&uSD&IO_Expandor
PA12
PA11
MICRO
SD
+3V3
uSD_CLK
uSD_CMD
SMS064FF
or
SMS128FF
1
2
3
4
5
6
7
8
SW2
9
SW1
10
CN17
P
JS008-2000
uSD_D0
uSD_D1
uSD_D2
uSD_D3
MicroSDCard_Detect
R150
0
+3V3
PC8
PC9
PC10
PC11
PC12
PD2
(TF)
Card
To
IO
expandor
GPI
O
0
1
IN
T
22
A0
18
SCL
19
SDA
20
VCC
21
A2
24
GPI
O
7
8
GPI
O
6
7
GND
9
GPI
O
5
6
GPI
O
4
5
GPI
O
3
4
A1
23
GPI
O
2
3
GPI
O
1
2
GPI
O
8
10
G
P
IO15
17
G
P
IO14
16
G
P
IO13
15
G
P
IO12
14
G
P
IO11
13
G
P
IO10
12
GPI
O
9
11
TAB
25
U16
STMPE1600QTR
PB9
PB6
PI8
I2C1_SCL
I2C1_SDA
IO_Expandor_INT
+3V3
C162
100nF
EXP_
IO2
EXP_
IO3
EXP_
IO4
EXP_
IO5
EXP_
IO6
EXP_
IO7
EXP_
IO8
EXP_
IO1
EXP_
IO9
EXP_
IO10
EXP_
IO11
EXP_
IO12
EXP_
IO13
EXP_
IO14
EXP_
IO15
EXP_
IO0
Default
I2C
Address:1000010
R159
1
0
K
R161
1
0
K
R175
1
0
K
R160
[N/A]
R165
[N/A]
R179
[N/A]
IO
Expandor
CAN
EXP_IO15
C161
100nF
R157
10K
R156
47K
R153
47K
R152
47K
R155
47K
R154
47K
+3V3
+3V3
R151
10K
R167
1
0
K
+3V3
1
6
2
7
3
8
4
9
5
CN22
DB9-m
ale
CAN
connector
3
1
2
D15
ESDCAN24-2
B
L
Y
Optional
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from