STMicroelectronics B-G474E-DPOW1, Руководство пользователя

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Pin
number
Description Main function Signal assignment Optional modification (1)
5 PA9 USBPD USBPD_DBCC1 Remove R94
6 PA10 USBPD USBPD_DBCC2 Remove R93
7 PA11 USBPD USBPD_FS_DM
Remove R96 and connect
R91
8 PA12 USBPD USBPD_FS_DP
Remove R95 and connect
R90
9 PA13 STLINK T_SWDIO Remove SB6
10 PA14 STLINK T_SWCLK Remove SB4
11 PA15 RGB LED LED_DOWN_BLUE / (T_JTDI) Remove R89 / (SB28)
12 PC10 STLINK T_VCP_TX Remove SB24
13 PC11 STLINK T_VCP_RX Remove SB23
14 PC12 USBPD 5V_USBPD_1A_PROTECT Remove SB20
15 PD2 USBPD USBPD_550mA_PROTECT Remove SB19
16 PB3 STLINK SWO Remove SB16
17 PB4 USBPD USBPD_CC2
Remove R86 and connect
R87
18 PB5 USER LED LED_UP_RED Remove R82
19 PB6 USBPD USBPD_CC1
Remove R85 and connect
R84
20 PB7 USER LED LED_RIGHT_GREEN Remove R81
21 PB8-BOOT0 - PB8 (Free) -
22 PB9 - PB9 (Free) -
23 PC13 JOYSTICK JOYSTICK_SELECT Remove SB5
24 PC14 BUCK-BOOST BUCKBOOST_LOAD 50% Remove R58
25 PC15 BUCK-BOOST BUCKBOOST_LOAD 100% Remove R57
26 PF0 - PF0 (Free) -
27 PF1 - PF1 (Free) -
28 PC0 - PC0 (Free) -
29 PC1 - PC1 (Free) -
30 PG10-NRST STLINK T NRST -
31 PC2 USBPD USBPD_VIN Remove SB33
32 GND Power GND -
1. In order to use PIOs to drive an external function plugged on CN9, optional modification may be necessary to disconnect
PIOs from the onboard main function. In that case, take care to keep hardware coherency in the design and adapt the
software accordingly.
14.5 CN8 extension connector
The 32-pin CN8 extension connector is accessible on the right-hand-side on top of the B-G474E-DPOW1, or on
the left-hand side of its bottom. It provides access to some PIOs of STM32G474RET6 and some Discovery board
power supplies. It can be plugged on a breadboard for prototyping (2.54 mm pitch). All pins remain accessible on
the top side for probing.
UM2577
CN8 extension connector
UM2577 - Rev 2
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