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  • System doesn't display anything on the Console port.

    From Ed Rahn@21:1/5 to All on Tue Feb 23 16:03:41 2021
    I just bought a Microvax 3100-10 and I don't seem to get anything
    out of the console ports. I've got a USB to NULL to H8571J to MMJ
    daisy chain. Should that be whats needed? I get the same thing if I
    remove the NULL conversion.

    All the LED's are light after power and seem to turn off then at
    some point in the future.

    Any ideas what could be going on? According to the documentation
    nothing is being executed. That doesn't really help much.

    Thanks,
    Ed

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  • From Scott Dorsey@21:1/5 to edrahn01@gmail.com on Wed Feb 24 00:49:42 2021
    Ed Rahn <edrahn01@gmail.com> wrote:
    I just bought a Microvax 3100-10 and I don't seem to get anything
    out of the console ports. I've got a USB to NULL to H8571J to MMJ
    daisy chain. Should that be whats needed? I get the same thing if I
    remove the NULL conversion.

    8N1, 9600 or 19200 bps?

    Get yourself a breakout box and look at the lights. And don't ever trust
    those crapola USB to RS-232 adaptors.
    --scott
    --
    "C'est un Nagra. C'est suisse, et tres, tres precis."

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  • From Andy Valencia@21:1/5 to Scott Dorsey on Wed Feb 24 06:26:45 2021
    kludge@panix.com (Scott Dorsey) writes:
    Get yourself a breakout box and look at the lights. And don't ever trust those crapola USB to RS-232 adaptors.

    Pay attention to which _kind_ of "RS-232". There's classic (up to +/- 25v,
    if memory serves), and 5v and 3.3v TTL style "RS-232". It doesn't help that most cheap-o manufacturers (even if they build something which works at all)
    do not bother to label it.

    Andy Valencia
    Home page: https://www.vsta.org/andy/
    To contact me: https://www.vsta.org/contact/andy.html

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