Building a VersaTerm - A Retro Computing Serial Terminal

[Editor]

But next week I will try your proposal to ground the CTS input and I will let you know !

I look forward to hearing how you go. Hopefully you can get to the bottom of this.

Perhaps others will also chime in with their experience / thoughts.

[djrm]

Probably not relevent here but a couple of things which have caused me grief with serial interfaces are, 1) dodgy fake max3232 devices not working very well and sometimes getting hot. 2) bad choice of 'protection' resistor value placed in series with signal lines. 3) devices nearly always needs cts asserted in order to receive data unless explicitly programmed to ignore it. 4) When dealing with rs232 signals always check with an inline led tester gadget to know what the signals are doing.

Hth, David.