[GreenKeys] Model 15 + C-64 Baud rate question

[Paul Pennington]

The range pot on a teletype is about the easiest adjustment you'll ever
make.  Turn it one way until the print starts to garble, then turn it the
other way until it starts to garble.  Leave the setting halfway in between
those two points.

Paul Pennington
Augusta, Georgia


On Sat, Jul 4, 2015 at 5:06 PM, drlegendre . <drlegendre at gmail.com> wrote:

> @Tony
>
> Ok, so even if the unit is set at spec (45.45) I can use the 50 baud
> setting on the C-64 side, so long as I add a timing delay between each
> successive char?
>
> @All
>
> Also, I've been trying to find info on the Range Finder - what is is, how
> it works, now it's adjusted, etc. but I've come up dry. I can't even find a
> section on it in the 138 pp. manual I found. What is that thing for?
>
> On Sat, Jul 4, 2015 at 3:48 PM, tony.podrasky <tony.podrasky at gmail.com>
> wrote:
>
>> GA OMs;
>>
>> You could put a timing loop in after each character - to expand
>> the time before the next character is printed.
>>
>> If the 15 is in good shape, you'll be able to adjust the range finder
>> and get it to print 50 BAUD. That will probably be fine because you
>> won't be getting the "hits" you would get when listening to RTTY
>> on shortwave.
>>
>>
>> On 07/04/2015 11:33 AM, drlegendre . wrote:
>>
>>> Thinking about trying to use a C-64 to communicate with a model 15 that
>>> should be arriving in a couple of months. The native RS-232 routine on
>>> the Commodore has a minimum baud rate of 50, whereas the 15 wants 45.45
>>> or so I've heard.
>>>
>>> Will the 15 tolerate 50 baud? FWIW the C-64 routine sets a pair of
>>> 256-byte FIFO I/O buffers for RS-232 communications, not sure how that
>>> might come into play.
>>>
>>> If it can't take continuous data at 50 baud, what if I only send one
>>> character at a time, with a slight delay such that the total CPM doesn't
>>> exceed the max char rate of 50 baud? IOW, can it take one character's
>>> worth of bits a little faster, so long as the next character doesn't
>>> arrive too soon?
>>>
>>> Thanks for any input.
>>>
>>>
>> --
>> MicroSoft error messages written in Haiku:
>>
>>         Three things are certain:
>>         Death, taxes and lost data.
>>         Guess which has occurred?
>>
>
>
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