Using The St-Link/V2-1 To Program And Debug The Stm32 On Board; Using St-Link/V2-1 To Program And Debug An External; Stm32 Application; Figure 8. Connecting The Stm32 Nucleo Board To Program The On-Board Stm32 - ST STM32 User Manual

Hardware layout and configuration
6.2.3

Using the ST-LINK/V2-1 to program and debug the STM32 on board

To program the STM32 on the board, plug in the two jumpers on CN2, as shown in red in
Figure 8. Do not use the CN4 connector as this could disturb the communication with the
STM32 microcontroller of the STM32 Nucleo board.

Figure 8. Connecting the STM32 Nucleo board to program the on-board STM32

CN2 jumpers ON
CN4 SWD
connector
6.2.4

Using ST-LINK/V2-1 to program and debug an external

STM32 application

It is very easy to use the ST-LINK/V2-1 to program the STM32 on an external application.
Simply remove the two jumpers from CN2 as illustrated in
program the STM32 on an external
debug connector according to
Note: SB12 NRST (target STM32 RESET) must be OFF if CN4 pin 5 is used in the external
application.
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application, and connect the application to the CN4
Table 5.
UM1724 Rev 14
Figure 9: Using ST-LINK/V2-1 to
UM1724
MS34378V2