User's Manual
Table Of Contents
- 1 Features
- 2 Ordering information
- 3 Development environment
- 4 Conventions
- 5 Delivery recommendations
- 6 Hardware layout and configuration
- 6.1 Power supply management
- 6.2 Clocks
- 6.3 Reset sources
- 6.4 User buttons and LEDs
- 6.5 Physical input devices: buttons
- 6.6 Boot options
- 6.7 Embedded ST-LINK/V2-1
- 6.8 ETM TRACE Mictor-38 connector
- 6.9 JTAG connector
- 6.10 DDR3L
- 6.11 eMMC
- 6.12 NAND Flash memory
- 6.13 Quad-SPI NOR Flash memory
- 6.14 microSD card
- 6.15 Audio
- 6.16 DSI LCD
- 6.17 Camera
- 6.18 1 Gbps Ethernet
- 6.19 USB OTG HS
- 6.20 USB host
- 6.21 RS-232 port
- 6.22 CAN FD
- 6.23 Smartcard
- 6.24 ADC/DAC
- 6.25 I2C_EXT connector
- 6.26 MFX MCU
- 6.27 Motor control
- 6.28 GPIO 40-pin expansion connector
- 6.29 RGB LTDC connector
- 7 STM32MP157F-EV1 Evaluation board information
- Appendix B STM32MP157F-EV1 I/O assignment
- Appendix C Federal Communications Commission (FCC) and ISED Canada Compliance Statements
- Appendix D CE conformity
- Revision history
- Contents
- List of tables
- List of figures
6.2 Clocks
Two clocks are available on STM32MP157F-EV1 for the STM32MP157FAA1 target microprocessor.
6.2.1 LSE clock
• External 32.768 kHz crystal
6.2.2 HSE clock
• External 24 MHz crystal
6.3 Reset sources
The reset signal of the STM32MP157F-EV1 platform is active low.
The sources of the platform reset are:
•
Two reset buttons MB1263/B1 and MB1262/B2 (black buttons)
• STM32MP157FAA1 microprocessor: internal voltage monitor, SW request or watchdog
• STPMIC1
• JTAG/SWD connector MB1262/CN14
• ETM Trace Mictor-38 connector MB1262/U10
• Embedded ST-LINK/V2-1
The STM32MP157FAA1 microprocessor also drives a subsystem reset, SUB_NRST signal on PD10 IO, to the
peripherals: USB Host Hub, MFX, Ethernet, and RGB_LTDC connector.
6.4 User buttons and LEDs
Table 8 describes the HW configuration for the user buttons and LEDs.
T
able 8. HW configuration for the user buttons and LEDs
I/O LED color and label Button label
PD8 PD8 is connected to the orange LD4. Active High -
PD9 PD9 is connected to the blue LD5. Active High -
PA13 PA13 is connected to red LD2. Active Low User PA13
PA14 MFX_IO13 is connected to orange LED LD7. Active Low User PA14
6.5 Physical input devices: buttons
The STM32MP157F-EV1 board provides a number of input devices for physical human control:
•
Two reset buttons (MB1263/B1 and MB1262/B2)
• Four-way joystick controller with select key (MB1262/B1)
• Wake-up button (MB1263/B4)
Table 9. Physical user devices: buttons
Devices Purpose - I/O
Wake-up button (MB1263/B4)
Awakes the platform from low-power modes.
Connected to
STPMIC1 PONKEY, which
generates a wake-up signal on STM32MP157
PA0
Reset buttons (MB1263/B1 or MB1262/B2) NRST signal
JOY_CENTER: Joystick select key (MB1262/B1 pin2) MFX_IO0
JOY_DOWN: Joystick down direction (MB1262/B1 pin3) MFX_IO1
UM2648
Clocks
UM2648 - Rev 1
page 13/61