ST-Link issue
Hello @Alex,
I am using 'Connect under reset' option.
Also the HW goes to low power mode (STOP mode) and change the SWDIO and SWCLK pins to analog. I did get the warning on ST-Link Utility ('Connection to device is lost') right after I flash FW. For a long period of time I thought this was the problem and that's why I was using the external RESET button to flash my MCU.
But... the ST-Link from Nucleo can access my MCU, with low-power and changed pin configuration. That's why I was wondering what are the differences between these two ST-Links.