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  • Comments on PBCC Baudot 5 bit code through COM port

    I believe your CHOOSE() for ASCII to Baudot-Murray conversion is off by one index. I mean CHOOSE is "1" based, not "0" based. For example in your code, &h04 (Murray-ITA2 space character) is the 33rd choice instead of the 32nd (value for ASCII space character is 32).

    In my test of CHOOSE() an index of 0 returns 0 (not the first listed choice) or the ELSE value if ELSE is used. An index of 1 returns the first choice, 2 the second, etc

    Cheers,
    Late add - just remove the first &h00. (nul is zero in both ASCII and Baudot, and CHOOSE returns zero on a 0 index, choice position is corrected and nul is covered ).
    Last edited by Dale Yarker; 11 Sep 2019, 12:08 AM.
    Dale

  • #2
    Thanks Dale,

    I corrected it by adding 1 to the Choose index.
    I made the program for someone else, so I didn't test it here myself. (I don't have any Telex hardware...)
    Regards,
    Peter

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    • #3
      Originally posted by Peter Lameijn View Post
      Thanks Dale,

      I corrected it by adding 1 to the Choose index.
      I made the program for someone else, so I didn't test it here myself. (I don't have any Telex hardware...)
      You mean some people are still using telex?

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      • #4
        Hobbyists enough...

        The Telex network was still active until 2007. For instance cacao traders used it very often.
        I've been to a trader in Amsterdam who had some 100 telex in one big office...
        ('modernized' with a camera above it to see remotely what's printed...)

        One of the reasons for the prolonged succes of telex that it was accepted as a legal document in court.
        It took some time before fax was accepted too as legal document.
        There are still courts where telex and fax are accepted and e-mail not.
        Regards,
        Peter

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        • #5
          deleted
          Dale

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