Operating Voltage; Led Interface; Buttons; Description - ST STM32MP135F-DK User Manual

7.11.2

Operating voltage

All LEDs are driven by the I/O level; they are operating in the 3.3 V voltage range.
7.11.3

LED interface

Table 11 describes the I/O configuration of the LED interface.
I/O
PA14
PA13
MCP IO14
MCP IO15
7.12

Buttons

7.12.1

Description

The STM32MP135F-DK Discovery kit provides five buttons:
• USER1 button (B1)
– Used at boot time by U-Boot to enter the USB programming mode
• USER2 button (B2)
– Used at boot time by U-Boot to enter the Android
• Wake-up button (B3)
– Allows the platform to be woken up from any low-power mode
– Connected to STPMIC1 PONKEY, which generates a wake-up signal on
• Tamper button (B4)
– Allows the detection of case opening as a security event
• Reset button (B5)
– Used to reset the Discovery kit
7.12.2

I/O interface

Table 12 describes the I/O configuration for the physical user interface.
I/O
PA14
PA13
-
PA6
NRST
UM2993 - Rev 2
Table 11. I/O configuration of the LED interfaces
PA14 is connected to the blue LED LD3. Active Low.
PA13 is connected to the red LED LD4. Active Low.
MCP IO14 is connected to the green LED LD7. Active High.
MCP IO15 is connected to the orange LED LD6. Active High.
Table 12. I/O configuration for the physical user interface
USER1 button (B1)
USER2 button (B2)
Wake-up button (B3). Connected to the PONKEY pin of the STPMIC1
Tamper button (B4)
Reset button (B5). Active Low.
Configuration
™
Fastboot mode
STM32MP135FAF7
Configuration
UM2993
Buttons
pin PF8
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