I am trying to send a DOS text file to a device attached to the serial port on a DOS 6.22 PC.
The attached device basically uses only the send and receive data lines along with the ground line-no CTS, RTS, etc… DOS sees the device as unavailable because it is looking for some kind of handshake. In NT, 2000 this can be accomplished because you can tell the advaced versions of Command to ignor handshakes, but I have to use DOS 6.22 and the Mode command is limited…..??????
