Using St-Link/V2-1 To Program/Debug An External Stm32 Application; Table 5. Debug Connector Cn2 (Swd) - ST STM32F334C8 User Manual

UM1735
5.1.5

Using ST-LINK/V2-1 to program/debug an external STM32 application

It is very easy to use ST-LINK/V2-1 to program an STM32 microcontroller on an external
application. Simply remove the two jumpers from CN3 as shown in
your application to the CN2 debug connector according to
Note: SB11 must be OFF if you use CN2 pin 5 (NRST) in your external application.
SB17 must be OFF if you use CN2 pin 6 (SWO) in your external application.

Table 5. Debug connector CN2 (SWD)

Pïn
1 VDD_TARGET
2 SWLCK
3 GND
4 SWDIO
5 NRST
6 SWO
UM1735 Rev 3
Table 5.
CN2
VDD from application
SWD clock
Ground
SWD data input/output
RESET of target MCU
Reserved
Hardware layout
Figure 8 and connect
Designation
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