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DocID028194 Rev 1
11/77
UM1935
Hardware Layout and configuration
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5.1 Embedded
ST-LINK/V2-1
The ST-LINK/V2-1 programming and debugging tool is integrated on the STM32479I-EVAL
evaluation board. Compared to ST-LINK/V2 the changes are listed below.
The new features supported on ST-LINK/V2-1 are:
USB software re-enumeration
Virtual com port interface on USB
Mass storage interface on USB
USB power management request for more than 100mA power on USB
This feature is no more supported on ST-LINK/V2-1:
SWIM interface
For all general information concerning debugging and programming features common
between V2 and V2-1 refer to ST-LINK/V2 User Manual UM1075.
Note 1:
It is possible to power the board via CN22 (Embedded ST-LINK/V2-1 USB connector) even
if an external tools is connected to CN12 (ETM Trace connector) or CN16 (External JTAG
and SWD connector).
Note 2:
ETM can only work at 50MHz clock by default because ETM signals are shared with other
peripherals. If a best performance of ETM is required (84 MHz/98 MHz), R32, R34, R35,
R37, R38, R238, SB4, SB5, SB7, SB9, SB17, SB19 must be removed, to reduce the stub
on ETM signals. In this way SAI, Ethernet and Camera are not functional and NOR flash
and the address of the SRAM are limited on A18.
Note 3:
ETM Trace function would be abnormal as SAI_SDB share same pins with TRACE_D0, and
TRACE_D0 would be forced high by SAI_SDB, so it is necessary to set (SAI_SDB)
ADCDAT1 pin of audio codec WM8994ECS/R (U23) to be tri-state by software when using
ETM Trace.
5.1.1 Drivers
The ST-LINK/V2-1 requires a dedicated USB driver, which can be found on
www.st.com
for
Windows XP, 7 and 8.
In case the STM32479I-EVAL evaluation board is connected to the PC before the driver is
installed, some STM32479I-EVAL interfaces may be declared as "Unknown" in the PC
device manager. In this case the user must install the driver files, and update the driver of
the connected device from the device manager.
Note:
Prefer using the “USB Composite Device” handle for a full recovery.
All manuals and user guides at all-guides.com
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