Hi @mhd0425
Although I guess STLINK-V3MODS has not been specifically tested on STM32MP1 devices, all STLINKs flavors are compatible with STM32MP1 (assuming VDD=3.3V).
If you are interested only in Virtual Com Port, and depending on amount of product you will product, maybe there could be some cheaper solutions:
- use a cheap STM32 part to do only UART/USB bridge (I guess USB full-speed would be enough for VCP)
- use a dedicated UART/USB bridge component or cable (e.g. FTDI chips/cables)
For debugging, providing an STDC14 (or other) connector on your board would allows to use any external debuggers (STLINK or other) during development phase.
Regards.