[GreenKeys] ASR 33 channel 8 always inverse...why?

Ethan Blanton elb at kb8ojh.net
Mon Jun 27 02:41:38 EDT 2022


B Degnan via GreenKeys wrote:
> Hi.  I was wondering what might cause pin/channel 8 to always go
> inverse of what was typed at the keyboard.  Results in the wrong
> character to print.  For example, if the ascii character was --34-6--
> , the character printed would be --34-6-8. If the character was
> --34-6-8 , the character printed would be --34-6--

Is that actually what's happening, or is it possible that it is
applying even parity?  For example, does --34-6-- turn into --34-6-8,
but 1-34-6-8 turns into 1-34-6--?  (Note that the resulting code, in
both cases, has an even number of mark bits.)

Ethan


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