Table 6. Debug Connector Swd: Pinning; Figure 9. St-Link Debugger: Jp Configuration For External Mcu - ST STM32L5 Nucleo-144 board User Manual

6.3.3.2 Using the ST-LINK/V2-1 to program and debug an external STM32 application
It is easy to use the ST-LINK/V2-1 to program the STM32 on an external application.
Simply remove the two jumpers from CN4, as shown in
connector (CN5) according to
Note: JP3 T_NRST (target STM32 reset) must be open when CN5 pin 5 is used with an external application.
Connector
SWD CN5
UM2581 - Rev 2
Table 6.
Figure 9. ST-LINK debugger: JP configuration for external MCU
Table 6.
Pin number Pin name
1 1
2 2
3 3
4 4
5 5
6 6
Figure 9, and connect your application to the SWD debug
Debug connector SWD: pinning
Signal name
VDD_TARGET: AIN_1
T_JTCK
GND
T_JTMS
T_NRST
T_SWO
Embedded ST-LINK/V2-1
STM32 pin Function
- VDD from application
- SWD clock
- Ground
- SWD data I/O
- Reset of target MCU
- SWD out (optional)
UM2581
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