Hardware layout and configuration
UM1932
22/31
UM1932 Rev 4
4.16 I
2
C extension connector CN11
Figure 8. I
2
C extension connector (front view)
4.17
USB OTG FS Micro-AB connector CN13
Figure 9. USB OTG FS Micro-AB connector CN13 (front view)
Table 9. I
2
C extension connector pinout
Pin number
Description
Pin number
Description
1
I2C1_SDA (PB9)
5
+3V3
2
NC
6
NC
3
I2C1_SCL (PB8)
7
GND
4
EXT_RESET(PB0)
8
NC
MS30715V2
1
7
2
8
Table 10. USB OTG FS Micro-AB connector CN13
Pin number
Description
Pin number
Description
1
VBUS (PA9)
4
ID (PA10)
2
DM (PA11)
5
GND
3
DP (PA12)
-
-