I tried with (FDXB setting in SETUP) and without flow control (FDXA setting).

Without, i can transmit from Rainbow to terminal - but not in the other direction. Diagnosis: receive overrun error in z80dart_channel::receive_data (line 1079)...

With flow control, the Rainbow locks up (WAIT LED lights) until i set FDXA in SETUP again.

Hint: do not set FDXC. It is a mode with a secondary 1200 bps line on the same port.

Last edited by Bavarese; 07/05/16 02:32 PM.