***JLink Error: Could not find core in Coresight setup

[DS.4]

* JLink Info: Device "STM32WB55VG" selected.

JLink info:

------------

DLL: V7.66d, compiled Jun 21 2022 17:00:22

Firmware: J-Link Ultra V4 compiled Sep 24 2021 16:41:09

Hardware: V4.00

Feature(s) : RDI, FlashBP, FlashDL, JFlash, GDB 

* JLink Info: Found SW-DP with ID 0x6BA02477

* JLink Info: Failed to power up DAP

* JLink Info: Found SW-DP with ID 0x6BA02477

* JLink Info: DPIDR: 0x6BA02477

* JLink Info: CoreSight SoC-400 or earlier

* JLink Info: Scanning AP map to find all available APs

* JLink Info: AP[0]: Stopped AP scan as end of AP map seems to be reached

* JLink Info: Iterating through AP map to find AHB-AP to use

***JLink Error: Could not find core in Coresight setup

Error: Flash Download failed - Target DLL has been cancelled

How can I fix it?

[KDJEM.1]

Hello @Community member​ ,

Try to boot from system memory.

If you use the STM32CubeIDE, please refer to UM2609 and precisely Debug using SEGGER J-Link Section and check the debug configuration.

I hope this help you!!

Kaouthar