Table 4. Jumper States - ST STM32F4DISCOVERY User Manual

UM1472
Features supported with ST-LINK/V2-A:
•
Virtual COM port interface on USB (see
configuration)
•
Mass storage interface on USB
Features not supported with ST-LINK/V2-A:
•
SWIM interface
•
Minimum supported application voltage limited to 3 V
•
USB power management request for more than 100 mA power on USB
Known limitation:
•
Activating the readout protection on an ST-LINK/V2-A target prevents the target
application from running afterwards. The target readout protection must be kept
disabled on ST-LINK/V2-A boards.
There are two different ways to use the embedded ST-LINK/V2-A depending on the jumper
states (see
•
Program/debug the STM32 on board (refer to
program/debug the STM32F407VG on
•
Program/debug the STM32 in an external application board, using a cable connected
to SWD connector CN2 (refer to
an external STM32
Jumper state
Both CN3 jumpers ON
Both CN3 jumpers OFF
Table 4):
application)
ST-LINK/V2-A functions enabled for on board programming (default)
ST-LINK/V2-A functions enabled for application through external CN2
connector (SWD supported)
UM1472 Rev 7
Section 6.1.3: ST-LINK/V2-A VCP
Section 6.1.4: Using ST-LINK/V2-A to
board)
Section 6.1.5: Using ST-LINK/V2-A to program/debug

Table 4. Jumper states

Description
Hardware and layout
13/32
31