Table 5. Jp1 Configuration; Table 6. Mipi20 Debug Connector (Cn5) Pinout; Figure 7. Connecting An External Debug Tool To Program The On-Board Stm32 - ST STM32H5 User Manual

Jumper
JP1
Note: The MIPI20 TRACE connector supports 1V8 or 3V3 for target reference voltage. When using the external debug
connector (CN5), STLINK-V3EC can be used to supply the board through the CN1 USB Type-C
Otherwise, another power supply source can be used as described in
STLINK-V3EC USB connector
MIPI20 connector
(SWD/JTAG/TRACE)
External debugger selection
MIPI20
pin
1
2
3
4
5
6
7
8
9
10
UM3115 - Rev 2
Definition
Debugger selection
Figure 7. Connecting an external debug tool to program the on-board STM32
(CN1)
(CN5)
(JP1)
Table 6. MIPI20 debug connector (CN5) pinout
CN5
VTref Target reference voltage (fed from VDD)
SWDIO/JTMS Target SWDIO using SWD protocol or target JTMS using JTAG protocol
GND Ground
SWCLK/JCLK Target SWCLK using SWD protocol or target JCLK using JTAG protocol
GND Ground
JTDO/SWO Target SWO using SWD protocol or target JTDO using JTAG protocol
KEY Not connected
Not used by SWD protocol, target JTDI (T_JTDI) using JTAG protocol, only for external
JTDI
tools
GND Ground
NRST Target NRST using SWD protocol or target JTMS (T_JTMS) using JTAG protocol
Table 5. JP1 configuration
Setting
ON [1-2]
OFF
Section 8 Power
Designation
UM3115
Embedded STLINK-V3EC
Comment
An external debugger connected to the
MIPI20 connector (CN5) can be used.
The level shifter (U1) is in high
impedance (high‑Z).
STLINK-V3EC no longer drives the
embedded STM32
The embedded STLINK-V3EC is
selected (default configuration).
®
connector.
supply.
5V power supply selection
(JP2)
page 12/44