That is odd. Handshaking and Carrier Detect can cause peculiar problems, but I'm wondering if maybe something else is wrong with the serial port.
I have a Tandy 200 and my belief is that the the serial port is the same as the 102 (which came later). The only difference I know of is that one needs to add the extra letters "NN" to TELCOM's `STAT` command. (For example, `STAT 98N1ENN` instead of `STAT 98N1E`). If you forget the extra letters, TELCOM will silently ignore the setting. [image: image.png] Does your Tandy 200's serial port work when connecting to anything else? For example, to your Tandy 102 via a null modem? —b9 On Wed, Dec 21, 2022 at 8:29 AM Joseph Colson III <joecols...@outlook.com> wrote: > I have been using a seral Wi-Fi modem with my Model 102 without much fuss > for the past few days. I switched it over to the Model 200 and no matter > what I did I could not get it to work. I searched the boards and found > plenty of discussion on flow control on the WiFI232 modem. While I don’t > understand it completely, the Model100/102 does not require it while the > Model 200 does. The Wifi232 has solderable jumpers to fix this issue. > The board I’m using does not have this, so I was considering jumping pins > on the DB9 side of the device, however I’m not completely sure what I’m > supposed to JUMP. I don’t know if all that made much sense. Hopefully, > someone can decipher what am asking. > > > > Any Help would be appreciated, > > > > Joe > > >
