20 May
2014
20 May
'14
1:58 p.m.
Marco,
You're looking at 7 bit ASCII with MARK parity.
Try using putty (
http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html). Set the
correct baud rate and set for 7 bits, 1 stop bit and MARK parity. If
you're using the linux version of putty you can only set mark parity from
the command line or by editing a saved cfg file (The Mark and Space options
are missing from the setting window on linux for some reason).
Marc
On Tue, May 20, 2014 at 1:25 PM, Marco Rauhut <marco at familie-rauhut.eu>wrote:
Hello together,
the restoration of my PDP-8 and TU56 going forward. Many PDP 8 machine
tests are OK. The TU56 come slowly back to life.
My current problem is, that i do not own a ASR33. Or is it no Problem?
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.
Exampe hexdump of the output from software on tape (generated with
cutecom):
00000000: 00 ff bf b0 b0 ae b0 b0 20 c0 20 b1 b1 ae b3 b0
00000010: 20 8d 8a aa aa c7 8d 8a 8d 8a 8d 8a 8d 8a c4 c5
00000020: c3 d4 c1 d0 c5 a0 d3 d9 d3 d4 c5 cd a0 c4 d4 a3
00000030: b4 8d 8a 8d 8a c2 c9 ce c1 d2 d9 a0 cd cf ce c9
Is there an existing software witch can act like a ASR33 for typing and
printing , or i got to write my own ?
Many thanks to all who help me again and again.....
Marco Rauhut
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