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
Table 19. SDCARD connector pinout MB1263/CN9
Pin Board function
1 DATA2_SD
2 DATA3_SD
3 CMD_SD
4 VDD_SD
5 CLK_SD
6 GND
7 DATA0_SD
8 DATA1_SD
9 GND
10 SDCARD_DETECT active LOW
6.15 Audio
A codec WM8994ECS/R connected to an SAI of STM32MP157FAA1 supports the TDM feature of the SAI port.
The TDM feature offers to STM32MP157FAA1 the capability to stream stereo audio channels. There are four
digital microphones on the STM32MP157F-EV1 board,. The STM32MP157F-EV1 also offers the possibility to
connect a MEMS extension module.
6.15.1 Audio codec interface
The audio codec has two supplies, 3V3 and 1V8, provided by STPMIC1.
The audio codec interfaces to the MPU are SAI2 and I2C2. Audio interrupt is connected to the I/O-expander MFX.
SAI2A as Tx and SAI2B as Rx are connected to two dif
ferent analog interfaces of the codec, to independently
playback and record.
SAI2 is connected by default to the audio codec, and may be shared via solder bridge configuration with the
expansion GPIO connector (refer to paragraph 6.28).
I2C2 is shared with all the peripherals: audio codec, DSI LCD, RGB LTDC, camera, and USB Hub. The audio
codec I
2
C address is 0x36
Table 20. I/O configuration for the audio codec interface
I/O Board function
PI5 SAI2_SCKA
PI7 SAI2_FSA
PI6 SAI2_SDA
PF11 SAI2_SDB
PE12 SAI2_SCK_B
PE13 SAI2_FS_B
PE0 SAI2_MCLKA
PE14 SAI2_MCLKB
PH5 I2C2_SDA
PH4 I2C2_SCL
MFX_IO5 AUDIO_INT
6.15.2 Digital microphones
MB1262/U1, U2, U3 and U4 are four MP34DT01TR MEMS digital omnidirectional microphones providing PDM
(pulse-density modulation) outputs. The implementation allows the beam forming.
UM2648
Audio
UM2648 - Rev 1
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