Hardware layout and configuration
UM1879
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UM1879 Rev 4
10.14 Extension
connector P1 and P2
The P1 and P2 headers can connect the STM32L476 Discovery board to a standard
prototyping/wrapping board. STM32L476VGT6 GPIOs are available on these connectors.
P1 and P2 can also be probed by an oscilloscope, logical analyzer or voltmeter.
Table 7. Extension connector
P1
P2
Pin number
function
Pin number
function
1
3V3
1
5V_U
(5V_USB_ST_LINK)
2
GND
2
GND
3
2V5
3
5V_I
(5V INPUT)
4
GND
4
VUSB
(USB OTG FS VBUS)
5
3V
5
5V
6
BOOT0
6
GND
7
PB3
7
PC14
8
PB2
8
PC15
9
PE8
9
PH0
10
PA0
10
PH1
11
PA5
11
NRST
12
PA1
12
GND
13
PA2
13
PE11
14
PA3
14
PE10
15
PB6
15
PE12
16
PB7
16
PE13
17
PD0
17
PE14
18
NC
18
PE15
19
GND
19
GND
20
GND
20
GND
