How to Fix ST LINK V2 Errors

[이정훈.1]

Hello.

I am a STM32F407VE user.

I am trying to load a program using ST LINK V2, but an error occurred and the program could not be loaded. The error is as follows, and if there is anyone who can solve this error, please let me know. thank you.

[Tesla DeLorean]

A custom board?

What are you doing with VDDA ?

Is NRST clamped low? Can you scope/measure it?