Stlink-V3E Debugger; Mb1779 2-Pin E5V Connector (Cn4); Table 16. External Power Source E5V (5 V); Figure 33. Connecting An External Debug Tool To Program The Ceb Mb1779 - ST STM32WL Series User Manual

7.2.1

STLINK-V3E debugger

As there is no embedded STLINK-V3E on the CEB MB1779, the only way to program and debug the onboard
STM32WL5MOC module is by using an external debug tool connected to the STDC14 connector (CN3).
The external debugger recommended is STLINK-V3SET, which supports SWD and VCP for STM32 devices. For
information about the debugging and programming features of STLINK-V3, refer to the user manual STLINK-
V3SET debugger/programmer for STM8 and STM32 (UM2448), which describes in detail all the STLINK-V3
features.
The basic way to support an external debug tool is to connect the external STLINK-V3SET debugger tool:
• To the debug connector (CN3) of the MB1779 board and,
• To a PC with a USB connector, as shown in
STM32WL5M module
E5V supply
connector
(CN4)
7.3 MB1779 2‑pin E5V connector (CN4)
The CN4 is a standard 2‑pin E5V connector (2.54 mm pitch). The CEB MB1779 board can be powered from the
E5V connector (CN4) by either:
• Plugging an external 5 V voltage supply (from 3.6 up to 5.5 V)
• Plugging a battery pack
Connect
or number
CN4
Note: Refer to Power supply
UM3127 - Rev 1
Figure 33. Connecting an external debug tool to program the CEB MB1779
(U3)
Figure 34.
Table 16.
Pin
Pin name
1 E5V
2 GND
for more details.
Figure 33.
STDC14
debug connector
(CN3)
2‑pin 2.54 mm E5V connector (CN4)
5V
GND
External power source E5V (5 V)
Signal
name
E5V
GND
UM3127
Board connectors
Functions
E5V power
GND
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