UM1570 Rev 7 17/41
UM1570 Hardware layout and configuration
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Figure 7. STM32F3DISCOVERY connections
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. Remove the two jumpers from CN4 as shown in
Figure 8: ST-LINK/V2 (or V2-B)
connections, and connect the application to the debug connector (CN3) according to
Table 5.
Note: SB7 must be OFF if the CN3 pin 5 is used in an external application.
Table 5. SWD debug connector (CN3)
Pin CN3 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 MCU
6 SWO Reserved
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