I have the Nucleo-144 board N657X0Q.
It appears to work (i believe there is demo code pre-installed - it is flashing a red led and the frequency changes when I press the user button). However, I cannot get the Cube IDE or Cube Programmer to work with it.
I am just trying to read memory using the cube programmer as a test. It connects, gets the information about the board, uploads the loader firmware, and then when it tries to read it gets an error and disconnects.
The log file is attached. I have tried using two different machines as hosts, and tried 2 different usb cables (both are suggestions from several posts I found). I have tried reducing the speed, and using the "under reset" and "hotplug" modes to no avail. I have selected the correct external loader before doing the check. I am using a separate power supply on the user USB to rule out any problems with enough power from the host machines on the USB port.
I don't know what to try next. Thanks in advance for your help.
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Found the answer after some additional searching-this post led me to a solution:
https://community.st.com/t5/stm32-mcus-boards-and-hardware/nucleo-n657x0-q-failed-to-start-gdb-server/m-p/756600/highlight/true#M23206
