UM1724 Rev 14 19/68
UM1724 Hardware layout and configuration
67
Figure 9. Using ST-LINK/V2-1 to program the STM32 on an external application
Table 5. Debug connector CN4 (SWD)
Pin CN4 Designation
1 VDD_TARGET VDD from application
2 SWCLK SWD clock
3 GND ground
4 SWDIO SWD data input/output
5 NRST RESET of target STM32
6 SWO Reserved
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