User manual
Hardware and layout UM1656
14/30 DocID025091 Rev 1
4.2.1 Using ST-LINK/V2 to program/debug the STM32L100 Value Line
on board
To program the STM32L100 Value Line microcontroller on board, simply plug in the two
jumpers on CN2, as shown in Figure 8 in red, but do not use the CN3 connector as that
could disturb communication with the STM32L100RCT6 of the 32L100CDISCOVERY.
Figure 8. 32L100CDISCOVERY connections
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CN2 jumpers ON
CN3
SWD connector