Can't flash STM32L476
Hello Håkan, Romain,
Håkan,
>> NRST seem to be connected correctly
OK, to confirm that using ST-Link Utilty > Menu (Target > Settings) : select Mode = Connect Under Reset & Reset Mode = Hardware Reset
and check if that ST-Link Utility cann connect to your board.
>> and I guess that pin is used by the “STM32 ST-LINK Utility” too witch successfully can flash the MCU.
No, ST-Link Utility can connect to your device using different reset modes (selectable from Target > Settings):
| Connection Mode | Possible Reset Modes |
| Connect Under Reset | Hardware Reset |
| Normal | (Software System / Core / Hardware) Reset |
| Hotplug | No Reset |
Romain
>> I already had the same error because of a debug session not stopped...
When a debug session is not stopped a different message appears saying that openOCD cannot connect to MCU, but in this case there is a reset timeout.
Best Regards,
Tarek
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