External I2C Connector Cn2; Daughterboard Connector Cn4 And Cn5 - ST STM32G081B-EVAL User Manual

Connectors
Description
Encoder A
Encoder B
9.1.2
9.1.3
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Table 19. Motor control connector CN1 (continued)
Pin of
STM32G081RBT6
PC6
PB5

External I2C connector CN2

Figure 11. I2C EXT connector CN2 (front view)
Table 20. RF E2PROM connector CN2
Pin number
1 I2C1_SDA (PB7)
2 NC
3 I2C1_SCL (PB6)
4 EX_RESET(PC0)

Daughterboard connector CN4 and CN5

Two 18-pins male headers CN4 and CN5 are designed to connect with the legacy peripheral
daughterboard or the UCPD daughterboard to STM32G081B-EVAL Evaluation mother
board. All GPI/Os are available on CN4, CN5 and extension connector CN9, CN10.
Each pin on CN4 and CN5 can be used by a daughterboard after disconnecting it from the
corresponding function block on STM32G081B-EVAL Evaluation board. Please refer to
Table 21 and Table 22 for detail.
Pin Pin
number of number of
CN1 CN1
31 32 -
33 34 PB0
Description Pin number
5
6
7
8
UM2403 Rev 1
Pin of
Description
STM32G081RBT6
GND
Encoder Index
Description
PWR (Define by daughterboard
on CN5, or VDD when short CN5
pin17 and pin18)
NC
GND
NC
UM2403