UM2408 Rev 2 17/51
UM2408 Hardware layout and configuration
50
6.4 Power supply and power selection
The power supply can be provided by five different sources:
• A host PC connected to CN1 through a USB cable (Default setting)
• An external 7-11 V power supply connected to CN8 pin 15 or CN11 pin 24
• An external 5 V power supply connected to CN11 pin 6
• An external 5 V USB charger (5V_USB_CHGR) connected to CN1
• An external 3.3 V power supply (3V3) connected to CN8 pin 7 or CN11 pin 16
In case V
IN
, EXT, CHGR or 3.3 V is used to power the Nucleo-144 board, this power source
must comply with the standard EN-60950-1: 2006+A11/2009 and must be Safety Extra Low
Voltage (SELV) with limited power capability.
In case the power supply is 3.3 V or a 5 V USB charger on CN1, the ST-LINK is not powered
and cannot be used.
6.4.1 Power supply input from STLINK-V3E USB connector (Default setting)
The STM32H7 Nucleo-144 board and shield can be powered from the ST-LINK USB
connector CN1 (U5V), by placing a jumper between the pins 1-2 of JP2 STLK (Refer to
Figure 8).
Table 4. MIPI-10 debug connector (CN5)
MIPI-10
Pin
STDC14
Pin
CN5 Designation
-1 NCReserved
-2 NCReserved
13 T_VCCTarget VCC
24 T_SWDIO
Target SWDIO using SWD protocol or Target JTMS (T_JTMS) using
JTAG protocol
35 GNDGround
46 T_SWCLK
Target SWCLK using SWD protocol or Target JCLK (T_JCLK) using
JTAG protocol
57 GNDGround
68 T_SWO
Target SWO using SWD protocol or Target JTDO (T_JTMS) using
JTAG protocol
7 9 T_JRCLK
Not used by SWD protocol, Target JRCLK (T_JRCLK) using JTAG
protocol, only for specific use
8 10 T_JTDI
Not used by SWD protocol, Target JTDI (T_JTDI) using JTAG protocol,
only for external tools
9 11 GNDDetect GND detect for plug indicator, used on SWD and JTAG neither
10 12 T_NRST
Target NRST using SWD protocol or Target JTMS (T_JTMS) using
JTAG protocol
-13T_VCP_RX Target RX used for VCP (Must be UART dedicated to the bootloader)
-14T_VCP_TX Target TX used for VCP (Must be UART dedicated to the bootloader)
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