Page 9
6. Schematics
VCC-USB
C3
5
2.
2u
F
R37
39K
R34
287K
1
2
3
IN
GND
OUT
5
4
EN ADJ
U4
AP7331-ADJ
C33
10uF
VCC-3.3V
D1
PMEG3010ER
R38
OR
AN
RST
CS
SCK
MOSI
MISO
+3.3V
GND
PWM
INT
RX
TX
SCL
SDA
+5V
GND
MIKROBUS DEVICE CONN.
R3
2K2
LD3
VCC-3.3V
PWM
VCC-USB
FP1
FERRITE
R26 220
1
2
3
4
5
GND
ID
D+
D-
VBUS
CN3
USB MINIB
USB-DET
USB-D_N
USB-D_P
INT
UART3-TX
UART3-RX
I2C1-SCL
I2C1-SDA
LEFT
RIGHT
C12
10nF
C10
47nF
C11
10nF
GBUF
C34
2.2uF
2
3
4
5
6
7
11
12
13 14
25
24
23
22
21
18
17
16
15
8
1
19
9
10
27
26
20
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
MICP/LN1
MICN
XRESET
DGND0
CVDD0
IOVDD0
CVDD1
DREQ
GPIO2
GPIO3
GPIO6
GPIO7
XD
CS
/B
SY
N
C
IO
VD
D
1
VC
0
D
G
N
D
1
XT
AL
0
XT
AL
1
IO
VD
D
2
D
G
N
D
2
D
G
N
D
3
D
G
N
D
4
XC
S
CV
D
D
2
GPIO5
RX
TX
SCLK
SI
SO
CVDD3
XTEST
GPIO0
GPIO1
GND
GPIO4
AG
N
D
0
AV
D
D
0
AV
D
D
2
AG
N
D
1
AG
N
D
2
AG
N
D
3
LN
2
LE
FT
RC
AP
AV
D
D
1
G
BU
F
RI
G
H
T
VS1053
U2
1
2
3
IN
GND
OUT
5
4
EN ADJ
U3
AP7331-ADJ
R33
100K
R35
27K4
R36
1K
R
12
10
R
13
10
R
14
10
R5
10
R9
10
VCC-1.8V
VCC-3.3V
LE
FT
RI
G
H
T
G
BU
F
R23
10K
G
PI
O
G
PI
O
R15
10K
VCC-3.3V
R19 27MP3-MISO
MP3-MOSI
MP3-SCLK
M
P3
-D
CS
MP3-DREQ
MP3-RST#
MICN
M
P3
-C
S#
X1
12.288MHz
R24
1M
C19
18pF
C18
18pF
R17
10K
R22
10K
VCC-3.3V
VCC-3.3V
VCC-1.8V
R16
1K
R18
1K
VCC-3.3V
MICP
C14 100pF
R
7
10
R
8
10
MICP
3
1
2
4
6
5
CN2
SJ-43516-SMT
MICN
C16 100pF
C15
100PF
R20
1K
R21
1K
1
2
MIC1
MICROPHONE
30
29
28
27
34
33
58 57 56 55 54 53 52
47
36
35
43
44
45
46
37
38
9
49
50
11
12
32
64 63
4
3
24
23
18
17
16
15
14
13
5
6
7
8
10
1
2
22
21
20
19
62 61 60 59
39
40
41
42
48
31
51
26
25
PC3
PC8
PB
1
PD
2
PB
3
PB
2
PA13
PA12
PA11
PA10
PA9
PA8
PC9
PB14
PB12
PB13
PB15
PC7
PC6
VDD
VCAP2
PB
4
PC
12
PC
11
PC
10
PA
15
PA
14
PB
9
PB
8
BO
O
T0 PB
7
PB
6
PB
5
VS
S
VD
D
PC15
PC14
VBAT
PC13
PH0
PH1
NRST
PC0
PC2
PC1
PA2
PA1
PA0
VDDA
VSSA
PB
0
PC
5
PC
4
PA
7
PB
11
PB
10
VD
D
VC
AP
1
VS
S
PA
3
VD
D
PA
4
PA
5
PA
6
STM32F415RG
U1
USB-DET
USB-D_N
USB-D_P
USB-ID
C13
2.2uF
C17
2.2uF
VCC-3.3V
RST#
MP3-MISO
MP3-MOSI
MP3-SCLK
MP3-CS#
SP
I1
-M
IS
O
SP
I1
-M
O
SI
SP
I1
-S
CL
K
SP
I1
-C
S#
SPI1-MISO
SPI1-MOSI
SPI1-SCLK
SPI1-CS#
I2
C1
-S
CL
I2
C1
-S
D
A
IO9-PA0
IO8-PA1
IO7-PA2
IO
3-
PA
3
IO
2-
PB
0
IO
1-
PB
1
1
2
3
4
5
6
7
8
HD1
1
2
3
4
5
6
7
8
HD2
VCC-3.3V
VCC-3.3V
IO6-PC9
IO5-PC8
IO4-PC7
IO6-PC9
IO5-PC8
IO4-PC7
IO9-PA0
IO8-PA1
IO7-PA2
U
AR
T3
-T
X
U
AR
T3
-R
X
IO12-PC0
IO11-PC1
IO10-PC2
IO12-PC0
IO11-PC1
IO10-PC2
IO3-PA3
IO2-PB0
IO1-PB1
M
P3
-R
ST
#
M
P3
-D
RE
Q
M
P3
-D
CS
IN
T
PW
M
C21
100nF
USB-ID
SW1
VCC-3.3V
R25
10K
C20
100nF
SW1-PB10
SW2
VCC-3.3V
R31
10K
C32
100nF
SW2-PD2
LD1
LD2
R1
4K7
R2
4K7
LD1-PB2
LD2-PC12
LD
1-
PB
2
LD
2-
PC
12
SW
1-
PB
10
SW
2-
PD
2
R6 470
C8
3.3nF
R4
100K
R10470
C9
3.3nF
R11
100K
1
2
3
HD3
R29
10K
R30
10K
R28
10K
VCC-3.3V
VCC-3.3V
C1
100nF
C2
100nF
C3
100nF
C4
100nF
C5
100nF
C6
2.2uF
VCC-3.3V
TMS-SWDIO
TCK-SWCLK
6
8
10
9
7
5
1
2
3
4
CN4
JTAG
VCC-3.3V
TMS-SWDIO
TC
K-
SW
CL
K
RST#
C31
100nF
C30
100nF
C28
100nF
C25
100nF
C29
100nF
C22
100nF
C23
100nF
C24
100nF
C26
100nF
VCC-1.8V
VCC-3.3V
C27
100nF
C7
1uF
R
L
G
C38
10uF
C39
10uF
C40
10uF
C41
10uF
C42
10uF
C43
10uF
R39
10K
C44
100nF
RST#
