Extension Connectors - ST STM32 User Manual

UM1724
Bridge
SB45 (VBAT/VLCD)
SB57 (VDDA/VREF+)
SB62, SB63 (USART)
SB13, SB14
(ST-LINK-USART)
(2)
SB16,SB50(MCO)
1. The default SBx state is shown in bold.
2. The default configuration depends on the board version. Refer to
3. The default configuration depends on the board version. Refer to
All the other solder bridges present on the STM32 Nucleo board are used to configure
several I/Os and power supply pins for compatibility of features and pinout with STM32
supported.
All STM32 Nucleo boards are delivered with the solder-bridges configured according to the
target supported STM32.
6.10

Extension connectors

Figure 10
connectors (CN5, CN6, CN8, CN9) and to ST morpho connector (CN7 and CN10), for each
STM32 Nucleo board.
Table 10. Solder bridges (continued)
(1)
State
ON VBAT or VLCD on STM32 is connected to VDD.
OFF VBAT or VLCD on STM32 is not connected to VDD.
ON VDDA/VREF+ on STM32 is connected to VDD.
VDDA/VREF+ on STM32 is not connected to VDD and can be provided from
OFF
pin 8 of CN5 (Used for external VREF+ provided by
PA2 and PA3 on STM32 are disconnected to D1 and D0 (pin 2 and pin 1) on
OFF
ARDUINO
PA2 and PA3 on STM32 are connected to D1 and D0 (pin 2 and pin 1) on
ARDUINO
ON
signals. Thus SB13 and SB14 must be OFF.
PA2 and PA3 on STM32F103CBT6 (ST-LINK MCU) are connected to PA3
ON and PA2 on STM32 to have USART communication between them. Thus
SB61, SB62, and SB63 must be OFF.
PA2 and PA3 on STM32F103CBT6 (ST-LINK MCU) are disconnected to PA3
OFF
and PA2 on STM32.
MCO on STM32F103CBT6 (ST-LINK MCU) are disconnected to
OFF
PF0/PD0/PH0 on STM32.
MCO on STM32F103CBT6 (ST-LINK MCU) are connected to PF0/PD0/PH0
ON
on STM32.
to Figure 26 show the signals connected by default to ARDUINO
Description
®
connector CN9 and ST morpho connector CN10.
®
connector CN9 and ST morpho connector CN10 as USART
Section 6.7.1: OSC clock supply
Section 6.7.2: OSC 32 kHz clock supply
UM1724 Rev 14
Hardware layout and configuration
ARDUINO
for details.
for details.
®
®
shield)
Uno V3
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