STLINKV3 VCP1 & VCP2 BREAK & RTS command

Dear All,

I try to use the 2 VCP on the STLinkV3 and I have some problem with standard command...

I cannot Send a BREAK command on the TX line

I cannot send RST ON/OFF command on the RST line of the VCP2

When I use this command nothing append...

Any ideas ?

Thx