Hello,
We have legacy dyno controllers to which we connect, using DOS 4.00.1111 (under Win95)
The connection on the pc "programmer" end is to the 25-pin parallel port, and on the target controller end, to a DB9 connector ...
Presumably, this is serial communication ...
Once the hardware connection is in place, we use the MS-DOS prompt (ver = Windows 95. [Version 4.00.1111]
We then change to a specific directory using the CD command.
Once in the right directory, we use the "setenv" command to set that directory as the source environment ...
Then we type a more specific command ... which is ... "iboots dbase3"
I think this loads a text database file to the controller ...
At this point two-way communication should be in place such that the controller recieves the dbase3 configuration "file"
Our programming pc's have gotten old (also legacy.)
I have loaded a new-old-stock computer with Win95 and the corresponding DOS 4.00.1111 version to recreate the necessary platform.
However, the parallel port does not seem to function.
Once I type the "iboots dbase3" command I am kicked out of DOS - that is, DOS simply closes itself out.
When I repeat the sequence, the same result recurs ...
I wonder if I need to "initialize the LPT for ( serial ? ) communication ?
I am playing around with the DOS MODE command in the autoexec.bat file.
No luck so far ...
Does anyone have any ideas ?