Nucleo St-Link/V2-1 Hardware Configuration; Table 5. St-Link Jumper Configuration; Figure 8. St-Link Debugger: Jp Configuration For On-Board Mcu - ST STM32L5 Nucleo-144 board User Manual

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6.3.3

NUCLEO ST-LINK/V2-1 hardware configuration

The embedded ST-LINK/V2-1 can be used in two different ways according to the jumper states, refer to
for setting, depending on the configuration:
Program/debug the MCU on-board
Program/debug an MCU in an external application board using a cable connected to SWD connector
.
Jumper
CN4
6.3.3.1
Using the ST-LINK/V2-1 to program and debug the STM32 on-board
To program the STM32 on-board, plug in the two jumpers on the CN4 connector, as shown in
case, do not use the CN5 SWD connector as that can disturb communication with the STM32 microcontroller of
the Nucleo.
UM2581 - Rev 2
Table 5.
ST-LINK jumper configuration
Definition
T_SWCLK / T_SWDIO
Figure 8.
ST-LINK debugger: JP configuration for on-board MCU
Default position
ON [1-2] ON [3-4]
OFF [1-2] OFF [3-4]
UM2581
Embedded ST-LINK/V2-1
Table 5
Comment
ST-LINK/V2-1 functions enabled for on-
board programming
ST-LINK/V2-1 functions enabled from
external connector (SWD supported)
Figure
8. In this
page 13/48

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