STM32 MCUs Boards and hardware tools

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I am having customized PCB board for particular application. i connected pcb board through ST-LINK/V2 through which i shaving 5 pins . 5V,GND, JTCK,JTNS,NRST. My question is should i connect external power supply to flash the program ?

should i connect external power supply to flash the program.when i connect ST-LINK/V2 to PCB board i get the error called "no cortex-m device found"."no target is connected".Please anyone help me to flash the program to my customised pcb board.

SBHAT.2 by Associate II
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Facing debugging issue with stm32h757 on visual studio code (failing to open debug window - but able to detect and download the firmware on target with stlink-v3)

I am doing an experiment with below combination.Evaluation board: STM32H757I-EVALIDE: Visual Studio CodeDebugger: STLINK-V3 onboard debuggerExtensions used: cortex-debug (marus25)I wrote some sample code in VS code and would like to debug the code, i...

Lokesh1 by Associate II
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