I just picked up a TPDD and wanted to try to interface this myself. I'm also in Ontario! Nice to meet ya.
On Sun, Apr 18, 2021 at 7:03 PM Stephen Adolph <twospru...@gmail.com> wrote: > I've really been messing around trying to get VirtualT to work with my > real TPDD. > > so far, it has mostly been my lack of good cabling. Getting that sorted > out. > RS-232 can be confusing! sometimes RXD is out , sometimes in, etc. ;) > > Anyhow, I've tried to make a good reliable serial port "sniffer" or "tap". > What I rigged up died, so I have to do something better. > Thought I would be able to buy some widgets on ebay to cobble something > together, but I could not! I was surprised. > > Here's the function I want: > > FemaleDB-9 RS-232 <---> TTL <---> MaleDB9 RS-232 > > Such a device, with all of the signals converted to TTL, lets me use my > logic analyser to watch the conversation. > > So, on ebay I could get this function. > FemaleDB-9 RS-232 <---> TTL > But not with RTS/CTS available. > > And I could not get > TTL <---> MaleDB9 RS-232 > at all, surprisingly. > > > So as you can guess, I made a board. Now my experimentation will have a 3 > week delay while I wait for OSHPARK to mail cross border. Which means... > with summer fast approaching, hobby time will be severely curtailed. > > > Here in Ontario we have a wicked bad 3rd COVID wave washing over us, so, > it is a bit bleak. Nice to have a hobby. > > Steve > > > >
