Connectors
UM1855
60/100
DocID027351 Rev 3
3 Connectors
3.1
RS-232 D-sub male connector CN9
Figure 20. RS-232 D-sub (DE-9M) 9-pole connector (front view)
3.2 Power
connector
CN22
The STM32L476G-EVAL board can be powered from a DC-5V external power supply via
the CN22 jack illustrated in
Figure 21
. The central pin of CN22 must be positive.
Figure 21. Power supply connector CN22 (front view)
Table 32. RS-232 D-sub (DE-9M) connector CN9 with HW flow control and ISP support
Terminal
Terminal name
Terminal
Description
1
NC
6
Bootloader_BOOT0
2
RS232_RX (PB7)
7
NC
3
RS232_TX (PG12)
8
Bootloader_RESET
4
NC
9
NC
5
GND
-
-
-36
-36
'&9
*1'