[GreenKeys] Asr33: How are BREAK encoded ?

[Wayne Durkee]

Right on Charles!

If you want a blank tape, try hitting the Here Is. If the drum is not coded, that will generate 20 blank characters in the tape.

If the drum is coded, try holding SHIFT and CTRL keys downtogether and depress the P keytop.

Wayne


> On February 20, 2017 at 7:15 PM Charles Morris <charlesmorris800 at centurytel.net> wrote:
> 
>     The Break key simply interrupts the line (Space condition) as long as you have your finger on it. There is no start or stop bit, or coding, so you will get random garbage...
>      
>      
>     From: Julien Scrofani mailto:julien.scrofani at gmail.com
>     Sent: Monday, February 20, 2017 2:09 PM
>     To: GREENKEYS BULLETIN BOARD mailto:greenkeys at mailman.qth.net
>     Subject: [GreenKeys] Asr33: How are BREAK encoded ?
>      
>     Hi guys,
>      
>     I taped several BREAK sequences with the tty puncher, pressing my finger more or less time on the key.
>     The punched codes differ a lot (see pic).
>     When I read the tape, toward my terminal via the usb current loop adapter, all BREAK are correctly converted.
>     Are they coded with several bits patterns ? If not, how are they interpreted correctly by the adapter ?
>      
>     Thank you in advance,
>     Julien
> 
> 
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