STLINK-V3 (MINIE) support

[majcher]

Description of defect

I'm trying to use STLINK-V3 (MINIE) connected to a custom targets / boards (based mbed supported MCUs: STM32H743ZI and STM32G0B1) with Mbed CLI v1, like mbed compile / test, mbedls, etc, but mbedls doesn't recognize STLINK V3.

I tried using STLINK V2.1 (cut from Nucleo64 board), which is recognized by mbedls with a code of 0799 (not sure what this code is for?) - it works with STM32G0B1CET MCU, when I manually map 0799 to my target, but it doesn't work with STM32H743ZI at all.

I'm looking for some hints on how to get:

• STLINK V3 (MINIE) working with Mbed CLI, like mbedls, mbed compile, etc
  • ideally for both H7 and G0B1
• STLINKL V2.1 working with Mbed CLI for H7 if it's possible
• is it possible to get some proper MCU code instead of 0799, which I guess is some default for Nucleo's STLINK V2.1

Target(s) affected by this defect ?

• STM32H743ZI
• STM32G0B1CET
• STLINK V3 (MINIE from ST) and V2.1 (cut from Nucleo 64 board)

Toolchain(s) (name and version) displaying this defect ?

ARM_GCC

What version of Mbed-os are you using (tag or sha) ?

1443257

What version(s) of tools are you using. List all that apply (E.g. mbed-cli)

mbedls, mbed compile, mbed test, mbedhtrun, etc.

How is this defect reproduced ?

Connect STLINK V3 to a PC and get an entry in mbedls in general.
(Connect STLINK V3 MINIE to probably any Nucleo board, like H743ZI or G0B1RE)

[0xc0170]

cc @ARMmbed/team-st-mcd

[jeromecoutant]

Hi
The mbed-Id is associated to a board, so to a single target. When cutting a ST-Link/V2-1, the ST-Link part keeps the mbed-Id of the initial board/target.
Mbed-Id 0799 means “ST unknown board”.

mbedls has a mock feature: https://github.com/ARMmbed/mbed-os-tools/blob/master/packages/mbed-ls/README.md#mocking-renaming-platforms