Regarding SWD connection between STM32F411RE and ST-LINK/V2-ISOL

[oren]

After connecting to STM32F411RE for debugging using ST-LINK/V2-ISOL, I am trying to write a program using CUBEProgrammer, but the following error occurs. If anyone knows the cause, I would appreciate it if you could let me know.

Error: STM32 target not found! If your product has debug authentication built-in, please run discovery using debug authentication

[conditions]

・PC and ST-LINK/V2-ISOL: USB connection

・PC and STM32F411RE: USB connection

・STM32F411RE and ST-LINK/V2-ISOL

>CN2 jumper OFF

>JP1 jumper ON

>CN4:1 pin=CN6:4 pin

>CN4:2 pin=STLINK:9 pin

>CN4:3 pin=STLINK:12 pin

>CN4:4 pin=STLINK:7 pin

>CN4:5 pin=STLINK:15 pin

This post has been translated from Japanese to comply with the ST Community guidelines.

[Imen.D]

Hello @oren and welcome to the Community;

Try following the steps on this article: How to solve debugger connection issues - STMicroelectronics Community

Did you make any modification on the board?

Maybe your target does not have power. Try set power on the VDD.