Here is a shot of what that looks like (I just use jumper wires between the serial cable and WiModem232).
I may splice the "driveWire" cable itself and just swap the wires inside of it. Or does anyone make a "invert-tx/rx-pins" kind of adapter already, in either the DB9 or DB25 side? Could be a simple inline thing.
EDIT: I could only run it at 1200 baud though, on a stock CoCo3. I haven't done a firmware update on the WiModem232 though, and it says one is due. Still, it is fairly well known that the Tandy CoCo SerialIO wasn't the most efficient (Tandy even sold a separate RS232 Pak that was more efficient at interfacing with a modem).
I may splice the "driveWire" cable itself and just swap the wires inside of it. Or does anyone make a "invert-tx/rx-pins" kind of adapter already, in either the DB9 or DB25 side? Could be a simple inline thing.
EDIT: I could only run it at 1200 baud though, on a stock CoCo3. I haven't done a firmware update on the WiModem232 though, and it says one is due. Still, it is fairly well known that the Tandy CoCo SerialIO wasn't the most efficient (Tandy even sold a separate RS232 Pak that was more efficient at interfacing with a modem).