STMicroelectronics B-G474E-DPOW1, Руководство пользователя

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Table 18. CN8 extension connector
Pin
number
Description Main function Signal assignment Optional modification
(1)
1 3V3_O Power 3V3_OUT -
2 GND Power GND -
3 VDD Power VDD -
4 AGND Power AGND -
5 VREF Power VREF -
6 VREFP Power VREFP -
7 AVDD Power AVDD -
8 PC9 - PC9 (Free) -
9 PC8 RGB LED BUCK_GREEN_DRIVE Remove R72
10 PC7 RC sinus RC sinus function Remove R97
11 PC6 RGB LED BUCK_RED_DRIVE Remove R65
12 PB15 BUCK-BOOST BUCKBOOST_P2_DRIVE Remove R6, R5
13 PB14 BUCK-BOOST BUCKBOOST_N2_DRIVE Remove R20
14 PB13 BUCK-BOOST BUCKBOOST_N1_DRIVE Remove R19
15 PB12 BUCK-BOOST BUCKBOOST_P1_DRIVE Remove R3, R4
16 PB11 BUCK-BOOST BUCKBOOST_I_IN_SENSE Remove SB26
17 PC5 JOYSTICK JOYSTICK_DOWN Remove SB6
18 PB10 JOYSTICK JOYSTICK_UP Remove SB4
19 PB1 USER LED LED_LEFT_ORANGE Remove R80
20 PB0 RGB LED BUCK_BLUE_SENSE Remove R79, C19 and C91
21 PB2 JOYSTICK JOYSTICK_RIGHT Remove SB3
22 PC4 JOYSTICK JOYSTICK_LEFT Remove SB2
23 PA7 RGB LED BUCK_RED_SENSE Remove R69, C14 and C90
24 PA6 - PA6 (Free) -
25 PA5 - PA5 (Free) -
26 PA4 - PA4 (Free) -
27 PA3 BUCK-BOOST BUCKBOOST_VOUT Remove R18 and R22
28 PA2 BUCK-BOOST BUCKBOOST_I_IN_AVG Remove SB14
29 PA1 BUCK-BOOST BUCKBOOST_VIN Remove R11, R17, and C3
30 PA0 RGB LED BUCK_GREEN_SENSE Remove R78, C18, and C22
31 PC3 BUCK-BOOST BUCKBOOST_USBPD_EN Remove SB12
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.
UM2577
CN8 extension connector
UM2577 - Rev 2
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