2
Connectors
The
expansion board allows the user to test the functionality of the
the use of the additional LED panel board.
The 4
ICs and the
development board are connected through CN5, CN6, CN8 and CN9
connectors (see the tables below).
Table 1.
Interconnections between X-NUCLEO-LED12A1 expansion board and NUCLEO-L073RZ
development board (left side)
Signal
Connector
Pin number
NUCLEO-L073RZ
X-NUCLEO-LED12A1
NC
CN6 Power
1
-
-
IOREF
2
-
(NC)
RESET
3
-
-
3V3
4
-
3V3
5V
5
-
5V (VDD)
GND
6
-
GND
GND
7
-
GND
VIN
8
-
-
A0
CN8 Power
1
PA0
IRQ_MCU (alt.)
A1
2
PA1
IRQ_MCU (alt.)
A2
3
PA4
IRQ_MCU (alt.)
A3
4
PB0
IRQ_MCU (alt.)
A4
5
PC1
NC
A5
6
PC0
NC
Table 2.
Interconnections between X-NUCLEO-LED12A1 expansion board and NUCLEO-L073RZ
development board (right side)
Signal
Connector
Pin number
NUCLEO-L073RZ
X-NUCLEO-LED12A1
D15
CN5 Digital
10
PB8
SCL_MCU
D14
9
PB9
SDA_MCU
AVDD
8
AVDD
NC
GND
7
GND
NC
D13
6
PA5
NC
D12
5
PA6
NC
D11
4
PA7
NC
D10
3
PB6
NC
D9
2
PC7
NC
D8
1
PA9
NC
D7
CN9 Digital
8
PA8
NC
D6
7
PB10
NC
D5
6
PB4
NC
D4
5
PB5
NC
UM2879
Connectors
UM2879
-
Rev 2
page 3/17