Hardware layout and configuration
UM2032
14/40
UM2032 Rev 3
Figure 7. Updating the list of drivers in device manager
5.2.2
ST-LINK/V2-1 firmware upgrade
ST-LINK/V2-1 embeds a mechanism for in-situ firmware upgrade through the USB port. As
firmware may evolve during the lifespan of the ST-LINK/V2-1 product (for example new
functionalities, bug fixes, support for new microcontroller families), visiting the
www.st.com
website is recommended before starting to use the STM32F412 Discovery board, then
periodically to stay up-to-date with the latest firmware version.
5.3 Power
supply
5.3.1
Power supply sources
The 32F412GDISCOVERY Discovery kit is designed to be powered by the following
sources:
•
5 V DC from the ST-LINK/V2-1 USB connector CN6 with 500 mA current limitation.
Power mechanism of supplying the Discovery kit by the ST-LINK/V2-1 is explained in
Section 5.3.4: Supplying the 32F412GDISCOVERY through the ST-LINK/V2-1 USB
port
. A jumper should be placed in location STLK of JP3, connecting pins 3 and 4. The
green LED LD6 is lighted on to confirm the presence of +5 V voltage.
•
5 V DC from the user USB FS connector CN3. A jumper should be placed in location
USB of JP3, connecting pins 5 and 6. The green LED LD6 is lighted on to confirm the
presence of +5 V voltage.
•
6 V to 9 V DC from VIN pin of ARDUINO
®
Uno V3 compatible connector CN2. The
voltage is limited to 9 V to keep the temperature of the regulator U3 within his thermal
safe area. A jumper should be placed in location E5V of jumper JP3, connecting pin 1
to pin 2 of JP3. The green LED LD6 is lighted on to confirm the presence of +5 V
voltage.
•
5 V DC from +5 V pin of ARDUINO
®
Uno V3 connector (CN2 pin 5) with limitations.
The jumpers on JP3 and CN5 have to be removed, SB21 (NRST) and SB28 (SWO)
have to be OFF. In such configuration the ST-LINK/V2-1 MCU is not powered, as
consequence the 8 MHz of the ST-LINK/V2-1 cannot be used as external input clock
for the STM32.
For details on JP3 jumper setting refer to
Table 4: Power-supply-related jumper settings
.
