21 May
2014
21 May
'14
10:43 a.m.
My current problem is, that i do not own a ASR33.
You can solve that.
Or is it no Problem?
Not really!
I testet the M8655 with the echo and printer test like
in the smal
computers handbook described. All is working fine. I see readable
characters in cutecom on my linux desktop. With the cutecom i also send
the binloader and the testprograms to the PDP8. There i have no problems
too.
But... some maindec testsoftware is doing printouts on
the Teletype
witch i canot read on cutecom. Exactly the same happens, if i bootstrap
software witch come on tape with the tapedrive.
As already seen in another postig:
You have a problem with parity. The
Teletype ignores the 8th bit - your PC doesn't (yet).
The PDP8 software BTW ignores parity, too - as far as I know.
But when they ask for input, they usually know only UPPERCASE.
I use minicom or picocom unter Linux. With Minicom I have some problems
under OS/8 where it clears the screen after each DIR output...
You can also use "cat file > port" to load paper tape images.
I have a script that expects RIM loader and then loads a modified BIN
loader and a BIN file in one run without touching the PDP8...
Philipp