6.5.3 Current consumption measurement (IDD)
Jumper JP1, labeled IDD, is used to measure the STM32G0 microcontroller consumption by removing the jumper
and connecting an ammeter.
• JP1 ON: STM32G0 is powered by the +3V3 voltage (default)
• JP1 OFF: an ammeter must be connected to measure the STM32G0 current. If there is no ammeter, the
STM32G0 is not powered.
6.5.4 Virtual COM port (VCP): USART
The STM32G0 Nucleo-32 board offers the possibility to connect a USART interface to the ST-LINK/V2-1.
Table 7. USART connection
Solder bridge configuration
(1)
Feature
(1)
SB3, SB4: ON USART2 (PA2/PA3) connected to ST-LINK/V2-1 Virtual COM port.
1. The default configuration is in bold.
The communication between the target and the MCU is enabled on USART2 to support the Virtual COM port.
6.6 Solder bridges
Table 8 details the solder bridges of the STM32G0 Nucleo-32 board.
Table 8. Solder bridge configuration
Solder bridge control
Solder
bridge (SB)
State
(1)
Description
(1)
USB power SB1
ON USB power limited to 100 mA max
OFF USB power limited to 300 mA max
ST-LINK reset SB2
ON ST-LINK in RESET state
OFF ST-LINK normal operation
VCP_TX SB3
ON VCP_TX is connected to STM32G0 I/O PA3
OFF VCP_TX is not connected to STM32G0 I/O PA3
VCP_RX SB4
ON VCP_RX is connected to STM32G0 I/O PA2
OFF VCP_RX is not connected to STM32G0 I/O PA2
SWCLK SB5
ON SWCLK is connected to STM32G0 I/O PA14
OFF SWCLK is not connected to STM32G0 I/O PA14
BOOT0 pull-down resistor SB6
ON 10 kΩ pull-down resistor not present on STM32G0 BOOT0 pin
OFF
10 kΩ pull-down resistor not present on STM32G0 BOOT0
pin
MCO SB7
ON MCO from ST-LINK connected to STM32G0 PC14
OFF MCO from ST-LINK not connected to STM32G0 PC14
32 kHz LSE quartz
SB8
ON 32 kHz LSE quartz enabled
OFF
32 kHz LSE quartz disabled (useful when using MCO function
from ST-LINK)
SB9
ON 32 kHz LSE quartz enabled
OFF
32 kHz LSE quartz disabled (useful when using MCO function
from ST-LINK)
UM2591
Solder bridges
UM2591 - Rev 1
page 14/26
To Next Page
Loading...
Need help?
General
