Rs232 And Rs485 Connector Cn11; Table 27. Rs232 & Rs485 Connector Cn11; Figure 14. Rs232 And Rs485 Connector Cn11 (Front View) - ST STM32G081B-EVAL User Manual

UM2403
Pin Description
17 GND
19 PA14-BOOT
21 VDD
2 PB2
4 PA6
6 PA4
8 PB3
10 GND
12 PC0
14 PC3
16 PC12
18 PF2-NRST
20 PF3-VBAT
22 PF4-VREF+
9.1.8
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Table 26. Extension connector CN10 (continued)
Alternative Function
-
SWCLK || BOOT0
-
POTENTIOMETER_ADC_IN10
AUDIO_IN_ADC_IN6/
MC_CurrentB
AUDIO_OUT_DAC1_OUT1
LCD/SD1_SCK
-
GPIO_EXT_RST
GPIO_JOY_DOWN
GPIO_LCD/SD_MOSI_DIR
RESET
VBAT
VREF+

RS232 and RS485 connector CN11

Figure 14. RS232 and RS485 connector CN11 (front view)

Table 27. RS232 & RS485 connector CN11
Pin number Description
1 NC
RS232_RX
2
(PC5 or PA10)
RS232_TX
3
(PC4 or PA9)
How to disconnect with function block on
STM32G081B-EVAL board
-
Open JP9 pin1-2
-
Open SB43
Open JP4, Keep CN1 disconnected
Open JP6 pin1-2, JP19
Open SB25
-
Remove R12, Keep CN2 disconnected
Open SB37
Open SB26
Open SB23
Open JP15
Open SB17, SB22
Pin
number
6 Bootloader_BOOT0
7 RS232_RTS(PA12)
8 RS232_CTS(PA11) / Bootloader_RESET
UM2403 Rev 1
Connectors
Description
37/78
77