On 9/8/20 9:46 AM, Josh Malone wrote:
On Tue, Sep 8, 2020 at 9:31 AM Brian White <[email protected]
<mailto:[email protected]>> wrote:
Another option is, You can buy a pre-made tpdd cable from
arcadeshopper.com <http://arcadeshopper.com> right now.
But it has the wrong plug for z88. And the z88's serial port is
non-standard, so there are no off-the-shelf adapters or combination
of adapters to get you from the z88 to the normal tpdd cable.
You're making a custom adapter or cable of some sort one way or
another no matter what.
Maybe it's worth making a short adapter cable that doesn't do
anything but just convert the z88 serial port to a standard plug and
standard pinout. Either a male 9-pin like a pc, or a female 25-pin
like a "Model T".
This is what I plan to do, once I get 'round to it. Once you get a
standard RS232-C port on the Z88, you have many options, including the
TPDD via the usual cable.
-Josh
I knocked up a couple pcb adapters, one that provides a 9-pin male DTE
like a PC, and one that provides a 25 pin female DTE, like a Model 100.
https://github.com/bkw777/Z88_RS232
But I think a short cable would be more advisable because of how the pcb
has to be offset, making it likely the cable falls out of the connector
easily.
At least the schematic helps make it easy to wire up, since you can just
go by the pin numbers.
--
bkw
