From some slef-progress and a few replies.. an update.
I've managed to figure out the rough framing of the TwinAx messages from
primarily this document:
http://bitsavers.informatik.uni-stuttgart.de/pdf/ibm/5250_5251/SY31-0461-0_5251_Display_Station_Model_11_Maintenance_Information_Dec77.pdf
...where it talks about the commands and modifier bits. However I'm
missing a detailed command reference that covers basic stuff; for
example the argument format to the SET MODE command, etc. But it was
enough to update the decoded output with tons more detail - here:
https://www.retrotronics.org/tmp/s36_ipl_twinax_decode_31nov19.zip
I 'think' this is enough to respin my break-out with a iCE40 and a ESP32
for a true wireless interface. I have a line-driver chip that is still
coming in from Digikey this week that will let me try and talk to a
InfoWindow II terminal as if I'm a midrange host - validating all my
transmit logic. Then I might put this project on the shelf for a while
unless I can find more docs that explains the command further.
-Alan H
On 2019-11-30 18:38, alan--- via cctalk wrote:
All,
I've recently scratched a curiosity itch on what it would take to build
a multi-port Twin-Ax to WiFi bridge.
