Hardware layout and configuration
UM2469
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UM2469 Rev 1
7.16 Buttons
and
LEDs
The black button B2 located LCD side is the reset of the microcontroller STM32F730I8K6.
The blue button B1 located LCD side is available to be used as a digital input or as alternate
function wake-up. When the button is pressed the logic state is 1, otherwise the logic state is
0.
Three LEDs located on the LCD side are available for the user. The LEDs are LD1 Arduino
(blue), LD5 User 1 (red) and LD6 User 2 (green).To light a LED a low-logic state 0 should be
written in the corresponding GPIO.
gives the assignment of control ports to the LED indicators.
Table 3. Control port assignment
Reference
Color
Name
Comment
B1
BLUE
USER
Alternate function Wake-up
B2
BLACK
RESET
-
LD1
BLUE
ARDUINO
PA5
LD2
RED
5 V Power
-
LD3
RED
Fault Power
Current upper than 625 mA
LD4
RED/GREEN
ST-LINK COM
Green during communication
LD5
RED
USER1
PA7
LD6
GREEN
USER2
PB1
LD7
RED
USB OTG HS OVCR
PH10
LD8
GREEN
V
BUS
USB HS
PB13
LD9
RED
USB OTG FS OVCR
PB10
LD10
GREEN
V
BUS
USB FS
PA9
