Using St-Link/V2 (Or V2-B) To Program/Debug An External Stm32; Application; Table 5. Debug Connector Cn3 (Swd); Figure 7. Stm32F3Discovery Connections - ST STM32F3DISCOVERY User Manual

Hardware layout and configuration
6.2.5

Using ST-LINK/V2 (or V2-B) to program/debug an external STM32

application

It is very easy to use the ST-LINK/V2 (or V2-B) to program the STM32 on an external
application. Simply remove the two jumpers from CN4 as shown in
V2-B) connections, and connect the application to the CN3 debug connector according to
Table 5.
Note: SB7 must be OFF if the CN3 pin 5 is used in an external application.
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Figure 7. STM32F3DISCOVERY connections

Table 5. Debug connector CN3 (SWD)

Pin
1
2
3
4
5
6
UM1570 Rev 6
CN3
VDD_TARGET
SWCLK
GND
SWDIO
NRST
SWO
UM1570
Figure 8: ST-LINK/V2 (or
Designation
VDD from application
SWD clock
Ground
SWD data input/output
RESET of target MCU
Reserved