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UM1855 Connectors
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3.5 ST-LINK/V2-1 programming connector CN16
The connector CN16 is used only for embedded ST-LINK/V2-1 programming, during board
manufacture. It is not populated by default and not for use by the end user.
3.6 ST-LINK/V2-1 Standard-B USB connector CN17
The USB connector CN17 is used to connect the on-board ST-LINK/V2-1 facility to PC for
flashing and debugging software.
Figure 22. USB type B connector CN17 (front view)
26 GND - -
28 PF7 SAI1_MCKB Remove R106
30 PF8 SAI1_SCKB Remove R89
32 RESET# - -
34 PH0 OSCIN Remove crystal X2, C54, close SB24
36 PC3 VLCD Remove R94
38 PA4 ADC_DAC Remove R73
40 VDD - -
Table 35. Daughterboard extension connector CN7 (continued)
Pin Description
Alternative
Functions
How to disconnect Alternative functions to
use on the extension connector
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