Figure 5.
X-NUCLEO-GNSS2A1 circuit schematic (2 of 3)
NUCLEO CONNECTORS
CN7
of NUCLEO
BOARD
CN8
of NUCLEO BOARDCN6 of NUCLEO
BOARD
CN10
of NUCLEO BOARD
CN5
of NUCLEO
BOARDCN9 of NUCLEO BOARD
{Default}
{Default}
{D8 = PA9: STM32 USART1_TX}
{Default}
{Default}
{Default}
{Default}
{Default}
{Default}
+3V3
+3V3
IOREF
GND
RX
I2C_CLOCK
I2C_DATA
+VCC_IO
SYS_FWD
SYS_WHEELTICK
SYS_RESETn
TX
SYS_WAKEUP
SYS_PPS
SYS_IRQ
J28
1 2
HEADER1X3
3
JR17
NM
CN10
1
ST morpho
2
3
4
5
6
7
8
9
10
11
12
1314
15
16
17
18
19
20
21
22
23
24
25
26
2728
29
30
31
32
3334
35
36
3738
CN6
1
Arduino
2
3
4
5
6
7
8
J11
1
HEADER1x2
1
Closed
2
2
J24
1
2
HEADER1X3
3
CN5
1
Arduino
2
3
4
5
6
7
8
9
10
CN8
1
Arduino
2
3
4
5
6
JR9
J26
SHUNT 2.54 mm.
1 2
HEADER1X3
3
CN9
1
Arduino
2
3
4
5
6
7
8
J23
1
2
HEADER1X3
3
J12
HEADER1x2
1
1
Closed
2
2
JR13
NM
CN7
1
2
ST
morpho
3
4
5
6
7
8
9
10
11
12
13
14
1516
17
18
1920
21
22
23
24
25
26
27
28
29
30
31
32
3334
35
36
37
38
J25
1
2
HEADER1X3
3
JR11
SHUNT 2.54 mm.
JR12
SHUNT 2.54 mm.
JR19
SHUNT 2.54 mm.
JR18
J29
SHUNT 2.54 mm.
1 2
HEADER1X3
3
J30
1 2
HEADER1X3
3
JR2
J27
SHUNT 2.54 mm.
1 2
HEADER1X3
3
JR16
SHUNT 2.54 mm.
JR4
PC11
PD2
SHUNT 2.54 mm.
E5V
GND
IOREF
RESET
+3V3
+5V
GND
GND
VIN
PA0A0
PA1
A1
PA4
A2
PB0A3
PC1
A4
PC0
A5
D7
PA8
D5/PWMPB4
D6/PWMPB10
D4
PB5
PB3D3/PWM
D2
PA10
D1/RX
PA2
D0/TXPA3
PC10
PC12
VDD
BOOT0
NC/PF6
NC/PF7
PA13
PA14
PA15
GND
PB7
PC13
PC14
PC15
PH0/PF0/PD0
PH1/PF1/PD1
PC2
VLCD/VBAT
PC3
PC8
PC6
PC5
U5V
PD8
PA12
PA11
PB12
PB11/NC
GND
PB2
PB1
PB15
PB14
PB13
AGND
PC4
NC/PF5
NC/PF4
PB8
D15/SCL
PB9
D14/SDA
AVDD
GND
PA5D13/SCK
PA6D12/MISO
PA7D11/MOSI/PWM
PB6D10/CS/PWM
PC7D9/PWM
D8
PA9
PC9
D15/SCL
D14/SDA
RX
D6/PWM
D7
D8
SHUNT 2.54 mm.
{Default}
D4
D9/PWM
D4
SHUNT 2.54 mm.
{Default}
D7
D13/SCK
D8
SYS_WAKEUP
D1/RX
D0/TX
D2
D2D6/PWM
SYS_PPS
{D2 = PA10: STM32 USART1_RX}
TX
D13/SCK
D9/PWM
SYS_IRQ
UM3020
-
Rev 1
page
10
/21
UM3020
Schematic diagrams