Limitations; I2C_Ext Connector; I2C_Ext Io Interface; Table 38. Adc/Dac Connectors Jp7/Jp8/Jp9/Jp10/Jp11 Pinout - ST STM32MP157 Series User Manual

ADC/DAC
6.24.4

Limitations

Due to the share of some IO of STM32MP157xAA3 by multiple peripherals, the following limitations apply in using
the PMOD Button features:
The fast ADC ANA0/ANA1 and slow ADC PF12 may not be operated simultaneously with motor control
function.
6.25

I2C_EXT connector

I2C_EXT connector MB1262/CN13 may be connected to I²C bus daughterboard. CN13 connector pin 5 is
connected to 3V3, so external module must be compliant with 3V3.
MFX_GPIO0 of MFX MCU provides EXT_RESET.
6.25.1

I2C_EXT IO interface

IO
PA11
PA12
MFX_GPIO0
1. Default configuration is shown in bold
Figure 23 shows the I2C_EXT connector pinout MB1262/CN13.
Table 40 describes the I2C_EXT connector pinout MB1262/CN13.
UM2535 - Rev 1
Table 38. ADC/DAC connectors JP7/JP8/JP9/JP10/JP11 pinout
Signal name
Table 39. HW configuration for the I2C_EXT interface
Bridge (1)
Setting
ON
MB1262/
SB51
OFF
ON
MB1262/
SB54
OFF
- -
Figure 23. I2C_EXT connector pinout MB1262/CN13
Pin Pin
1 2
PA11 ,used as I2C5_SCL, is connected to EXT_SCL
PA11 is not connected to EXT_SCL
PA11 may be connected to the GPIO expansion connector through MB1262/
SB52
PA12 ,used as I2C5_SDA, is connected to EXT_SDA
PA12 is not connected to EXT_SDA
PA12 may be connected to the GPIO expansion connector through MB1262/
SB55
Connected to EXT_RESET
I2C_EXT connector
Signal name
GND
Comment
UM2535
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