ST 32L0358DISCOVERY, Руководство пользователя

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UM1775 Rev 4 13/39
UM1775 Hardware layout
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6.1 Embedded ST-LINK/V2-1
The ST-LINK/V2-1 programming and debugging tool is integrated on the STM32L053
Discovery board.
The embedded ST-LINK/V2-1 supports only SWD for STM32 devices.
For information about the debugging and programming features refer to the ST-LINK/V2 in-
circuit debugger/programmer for STM8 and STM32 user manual (UM1075). For a
comparison of the various ST-LINK solutions, refer to the Overview of ST-LINK derivatives
technical note (TN1235).
There are two different ways to use the embedded ST-LINK/V2-1 depending on the jumper
states (see
Table 4 ):
•
program/debug the MCU on board ( Section 6.1.4 ).
•
program/debug an MCU in an external application board using a cable connected to
SWD connector CN5 (
Section 6.1.5 ).
6.1.1 Drivers
ST-LINK/V2-1 requires a dedicated USB driver, which, for Windows
®
7, Windows
®
8 and
Windows
®
10, is available from www.st.com .
In cases where the STM32L053 Discovery board is connected to the PC before the driver is
installed, some STM32L053 Discovery board interfaces might be declared as “Unknown” in
the PC device manager. In this case, the user must install the dedicated driver files and
update the driver of the connected device from the device manager, as shown in
Figure 5 .
Note: It is preferable to use the “USB Composite Device” handle for a full recovery.
Figure 5. Updating the list of drivers in device manager
Table 4. Jumper states
Jumper state Description
Both CN4 jumpers ON
ST-LINK/V2-1
functions enabled for on board programming (default)
Both CN4 jumpers OFF
ST-LINK/V2-1
functions enabled for application through external CN5
connector (SWD supported)