[victorian1990]

Sure i can, but i use 30 day trial ver. , so i dont think it is the cause

By the way, gcc flags -fshort-enums and -fno-short-enums worked, though compiler gave some warrnings about it.

[victorian1990]

Thanks for answer!

I checked that i have”USB devices” selected on the Debug Setting page (U can look at screenshot).

Note, that when i take out first ST LINK debugger,  second debugger works good. (Next screenshots tell what kind of error uccured and show sucsess message when remaining debugger works.) No matter

what ST LINK i take out – first or second – remaining debugger works anyway. Maybe i need to update debugger’s firmware , use other software version or something else?

I’ll be glad for any help.

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