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HCS12 microcontroller question

Discussion in 'Electronic Design' started by panfilero, Feb 10, 2007.

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  1. Checking what a serial port on a device is actually doing perhaps? Not
    all data is printable ASCII. IME experience hyperterminal reacts badly
    to the unexpected.
    I've seen it on multiple machines all with standard serial ports. Worse
    it can leave the serial port inaccessible.
    Hand duly raised.

    I have walked novices through hyperterminal on the phone. Not a
    pleasant experience.

    And any engineering, service and manufacturing personnel I've worked
    with have had an easier time with terminal programs other than
    hyperterminal which seems designed more to confuse than to help.

  2. joseph2k

    joseph2k Guest

    I have scant tolerance for persons buying UP development boards without a
    clue as how to use or connect them. This is not a poor student. This is
    more likely some hack coder getting in way deeper than 'es skills.
  3. Guest

    No really suprising as Freescale elected to sell it also as the
    official full development platform. If you bought it from freescale,
    you got a CD of example code...
    I was recommending you use SCI1/B since the debugger halfway owns SCI0/
    A - most likely to be an issue if you try to do interrupt based
    receiving. But that's probably not your problem at the moment.
    Yes, but are you enabling the clock multiplier? I'm not sure which
    the serial is physically derived from, so that could be an issue.
    My tables appear to use 163 for 9600 baud
    Looks right, if your mask is 0x80

    Did you set SCI0CR1 to 0x00 and SCI0CR2 to 0x0C ?
    Probably, or somebody's set at a different number of data or stops
    bits than the other
  4. Yuriy K.

    Yuriy K. Guest

    Because I do. Monitoring exchange between CPU and 3rd party device, for
    Standard COM port. Native WinXP-SP2 drivers.
    History does not work well either.
    Well, let's see.

    Slow text exchange, no timing whatsoever, no binary transfer, 3-wire
    interface only, no history, occasional hang-up, occasional locking
    serial port, ...

    Yes, of course it can be used...
  5. Rich Grise

    Rich Grise Guest

    Didn't they get together with Hewlett and start making crappy scopes? ;-)

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