Hi! >>>> ECHO TEST>COM1
>>> good idea. unfortunately this only works with proper >>> DTR/CTS/RTS/... status lines connected. > Unless you select a no-handshake mode. MODE might be able to suggest to a partner 'I am ready to receive'. there is no such thing ( for MODE) as 'ignore status lines. send anyway.' ECHO TEST>COM1 will only do something if DTR/CTS7whatever are in proper state. > I even vaguely > remember MODE itself having a bug at one time, using > a wrong bit mask or shift, regarding the modem control > lines. Check which version of MODE you are using :-) even worse (it is Eric Auer in the copyright of the serial part of MODE). problem with quality control :-(((( > I would not suggest to pull modem lines to specific > TTL voltages though, because they use non-TTL levels. I would suggest to not let non-TTL levels (+12 Volts) to hit TTL inputs. not vice-versa. Tom _______________________________________________ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user