[Coco] Using Rick Adam's DELPHIterm 3.1 to connect a Coco3 to a TRS80 PT210

Arthur Flexser flexser at fiu.edu
Wed Oct 17 14:07:44 EDT 2018


PRINT #-2 is creating the same thing (a sequence of byte values) as a
terminal program outputs for text.  The problem is likely either that the
baud rate disagrees with the one the printer is expecting, or else that
Basic's printer output routine isn't receiving the "printer ready" status
that tells it that the next byte can be transmitted.  This check for
printer status can be knocked out with a poke or two that I don't have
handy, but I'm sure someone can tell you what is needed for that.

Art

On Wed, Oct 17, 2018 at 1:51 PM, rietveld rietveld <rietveldh at hotmail.com>
wrote:

> Good advice Arthur and John.
> But the PT210 will not work explicitly in printer mode (as far as I can
> tell). It seems to need the text outputed via a terminal program rather
> than the normal PRINT #-2.
> I think this is because the printer is acting as the screen for the text
> that the terminal is receiving?
>
> Sent from my BlackBerry
>   Original Message
> From: Arthur Flexser
> Sent: Wednesday, October 17, 2018 1:36 PM
> To: CoCoList for Color Computer Enthusiasts
> Reply To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Using Rick Adam's DELPHIterm 3.1 to connect a Coco3 to
> a TRS80 PT210
>
>
> Many basic printers of that era had a dip switch that selected whether the
> printer would do a linefeed on CR alone, as the CoCo generally outputs, or
> whether the printer required an explicit linefeed character in addition to
> the CR.  Have you checked the docs for whether that option is available?
> If the printer was doing carriage returns only with no linefeed,
> overwriting each line with the next line, the wrong dip switch setting
> might be where the problem lies.
>
> If there is no dip switch, it is also possible that the printer accepts
> some sort of control code (usually an escape byte plus another byte or two)
> that will put it into the mode for generating an automatic linefeed when
> sent a carriage return.
>
> Art
>
> On Wed, Oct 17, 2018 at 1:20 PM, rietveld rietveld <rietveldh at hotmail.com>
> wrote:
>
> >
> > All very good points but the reason I made the video was to show that
> > DELPHITERM was the only terminal program that I could get to properly
> work
> > with the PT210 The deluxe rs232 paks terminal program works but will not
> > issue a proper carriage return. The paper would not advanced up unless
> the
> > terminal program transmitted a full 80 characters, either full or blank
> > DelphiTerm did work after I setup the basic loader with the terminal
> > settings including the PT210 s max baud rate of 300
> >
> >
> > Sent from my BlackBerry
> >   Original Message
> > From: Salvador Garcia via Coco
> > Sent: Wednesday, October 17, 2018 11:10 AM
> > To: CoCoList for Color Computer Enthusiasts
> > Reply To: CoCoList for Color Computer Enthusiasts
> > Cc: Salvador Garcia
> > Subject: Re: [Coco] Using Rick Adam's DELPHIterm 3.1 to connect a Coco3
> to
> > a TRS80 PT210
> >
> >
> >  And if you get any alcohol on the printout, the fading will be
> > instantaneous.  :-D
> >
> > The only way to be sure is to either scan the thermal printout or get a
> > copy of it using a tried and true copy machine.
> >
> > Salvador
> >     On Wednesday, October 17, 2018, 2:09:15 AM CDT, Gene Heskett <
> > gheskett at shentel.net> wrote:
> >  <snip>
> >  Just be aware that those thermal paper printouts have a very poor shelf
> > life, fading into the sunset in 6 months or less. Higher storage temps
> > and light exposure hasten this, a lot.  So don't figure on going back
> > and refreshing you memory by re-reading it 2 years later.
> >
> > <snip>
> >
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> >
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