hi i am having issues with the Debug its a M7 and M4 MCU i connected swdio, swclk, swo, NRST, gnd and Vapp

[fMoha.1]

the error:

STMicroelectronics ST-LINK GDB server. Version 5.8.0

Copyright (c) 2020, STMicroelectronics. All rights reserved.

Starting server with the following options:

       Persistent Mode           : Disabled

       Logging Level             : 1

       Listen Port Number        : 61234

       Status Refresh Delay      : 15s

       Verbose Mode              : Disabled

       SWD Debug                 : Enabled

       InitWhile                 : Enabled

Waiting for debugger connection...

Debugger connected

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

                      STM32CubeProgrammer v2.7.0-RC1                 

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

ST-Link Server is running on port : 7184

ST-LINK SN : 30FF6F065647373734141043

ST-LINK FW : V2J37S7

Board      : --

Voltage    : 2.95V

SWD freq   : 4000 KHz

Connect mode: Under Reset

Reset mode : Hardware reset

Device ID  : 0x450

Revision ID : Rev V

Device name : STM32H7xx

Flash size : 2 MBytes

Device type : MCU

Device CPU : Cortex-M7/M4

Memory Programming ...

Opening and parsing file: ST-LINK_GDB_server_a24696.srec

 File         : ST-LINK_GDB_server_a24696.srec

 Size         : 2704 Bytes

 Address      : 0x08100000

Erasing memory corresponding to segment 0:

Erasing internal memory sector 8

Error: failed to erase memory

Error: failed to erase memory

Encountered Error when opening C:\ST\STM32CubeIDE_1.2.0\STM32CubeIDE\plugins\com.st.stm32cube.ide.mcu.externaltools.cubeprogrammer.win32_1.6.0.202101291314\tools\bin\STM32_Programmer_CLI.exe

Error in STM32CubeProgrammer

Debugger connection lost.

Shutting down...

[fMoha.1]

this is whats happens before i see an error, it is stuck there for 5 min and then error pops up

[mƎALLEm]

Hello,

1. It's recommended to use the latest version of STM32CubeProgrammer tool.
2. Please refer to the application note AN4938 "Getting started with STM32H74xI/G and STM32H75xI/G hardware development" for HW recommendations / power supply (section 2 Power supplies) as well as debug connections (section 6 Debug management).

[fMoha.1]

hi

sofLit,

i check every thing, but its not the power or the connection. i solved it by connecting the ST-Link VCC to the board VCC. when i connect the external power then i am having the problem.