Hardware layout and configuration
UM1521
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Doc ID 022868 Rev 1
2.1
Development and debug support
Version 2 of the ST-LINK called ST-LINK/V2 is embedded on the board. This tool allows
program loading and debugging on the STM32L using a JTAG or SWD interface. Third-party
debug tools are also supported by JTAG connector CN16 and Trace connector CN11.
A specific driver must be installed on your PC for communication with embedded ST-
LINK/V2. To download and install this driver, use the install shield called ST-
LINK_V2_USBdriver.exe available on the Software and development tools page for ultra low
power STM32L family available on www.st.com.
Third-party toolchains support ST-LINK/V2 according to
.
The embedded ST-LINK/V2 is connected to the PC via a standard USB cable connected to
connector CN14. The bicolor LED LD5 (COM) advises on the communication status as
follows:
●
Slow blinking Red LED/Off : At power on before USB initialization.
●
Fast blinking Red LED/Off : After the first correct communication between PC and ST-
LINK/V2 (enumeration).
●
Red LED On: When initialisation between PC and ST-LINK/V2 is successfully finished.
●
Green LED On: After successful target communication initialization.
●
Blinking Red/Green LED: During communication with target.
●
Red LED On: Communication finished and OK.
●
Orange LED On: Communication failure.
Note:
It is possible to power the board via CN14 (embedded ST/LINK/V2 USB connector) even if
an external tool is connected to CN11 (Trace connector) or CN16 (external JTAG & SWD
connector).
Table 1.
Third party support of ST-LINK/V2
Third party
Toolchain
Version
Atollic
TrueSTUDIO
2.1
IAR
EWARM
6.20.4
Keil
MDK-ARM
4.20
Tasking VX-Toolset
ARM Cortex-M
4.0.1
www.BDTIC.com/ST
