Got Error: Unable to get core ID by connect with ST LINK

[BrianZ]

try to connect target with mcu programmer and has the following error.

UR connection mode is defined with the HWrst reset mode
08:11:11 : ST-LINK SN : 000B000F544B500220343637
08:11:11 : ST-LINK FW : V3J15M6B5S1
08:11:11 : Board : STLINK-V3SET
08:11:11 : Voltage : 1.74V
08:11:11 : SWD freq : 8000 KHz
08:11:11 : Connect mode: Normal
08:11:11 : Reset mode : Software reset
08:11:11 : Device ID : 0x448
08:11:11 : Revision ID : Rev Z
08:11:11 : Debug in Low Power mode is not supported for this device.
08:11:12 : UPLOADING OPTION BYTES DATA ...
08:11:12 : Bank : 0x00
08:11:12 : Address : 0x1ffff800
08:11:12 : Size : 16 Bytes
08:11:12 : UPLOADING ...
08:11:12 : Size : 1024 Bytes
08:11:12 : Address : 0x8000000
08:11:12 : Read progress:
08:11:12 : Data read successfully
08:11:12 : Time elapsed during the read operation is: 00:00:00.005
08:11:12 : Error: Unable to get core ID
08:11:12 : Error: Unable to get core ID
08:11:12 : Warning: Connection to device 0x448 is lost
08:11:12 : Disconnected from device.
08:11:22 : UR connection mode is defined with the HWrst reset mode
08:11:22 : ST-LINK SN : 000B000F544B500220343637
08:11:22 : ST-LINK FW : V3J15M6B5S1
08:11:22 : Board : STLINK-V3SET
08:11:22 : Voltage : 1.88V
08:11:22 : Error: No STM32 target found! If your product embeds Debug Authentication, please perform a discovery using Debug Authentication

 

no idea what's 0x448 is lost ? and unable to get core id

[Maryem]

Hello @BrianZ ,

 

The error message indicates that the connection to the device with Device ID 0x448 is lost, and the core ID cannot be retrieved. I tried connecting a device with Device ID 0x448, and everything worked fine on my end. Could you please check your cables for secure connections ?

 

Maryem.