[net.micro.cpm] BSR controller

zielinsk@nadc.ARPA (09/03/85)

Radio Shack has an inexpensive box now which can contol BSR units, but the
software is meant for a Color Computer. It attached via a RS-232 port and
runs independant of the computer except for the setup commands. It also
has backup power.

rickb@tekig4.UUCP (Rick Bensene) (09/06/85)

> Radio Shack has an inexpensive box now which can contol BSR units, but the
> software is meant for a Color Computer. It attached via a RS-232 port and
                                                            ^^^^^^
> runs independant of the computer except for the setup commands. It also
> has backup power.

INCORRECT!   The unit from Radio Shack is *NOT* controlled by an RS232
port!  The unit connects to the  Color Computer's CASSETTE TAPE interface,
and there is *NO* documentation on how the CoCo communicates with
the box.  Th link is bi-directional, meaning the controller box
can download it's contents to the CoCo for updating, and once
finished, the CoCo uploads the updated information back into the
controller.  Once the controller has been programmed with events
it may be disconncted from the CoCo and runs by itself.  I recently
purchased one of these, and while the software supplied with it
(in CoCo ROMPack form) is cute (graphic oriented), it's tedious and
slow to use.  If anyone out there has **ANY** information on how
this beastie communicates with the  CoCo, I'd really appreciate
hearing from you.


-----------
Rick Bensene
{ihnp4, decvax, allegra, cbosg, ucbvax}!tektronix!tekig4!rickb
Phone: Weekdays (503) 627-3559
       BBS: (503) 254-0458  300/1200 baud, 24 hours a day
US Mail: Tektronix, Inc. - P.O. Box 500, Mail Stop 39-170 - Beaverton,
 Oregon  97077

psfales@ihlpl.UUCP (Peter Fales) (09/06/85)

> Radio Shack has an inexpensive box now which can contol BSR units, but the
> software is meant for a Color Computer. It attached via a RS-232 port and
> runs independant of the computer except for the setup commands. It also
> has backup power.

Sorry, I checked this out this weekend when the Radio-Shack box went on
sale.  It interfaces to the Color computer through the cassette
interface.  It undoubtably could be made to work with other computers, but
it would not be a trivial task.

Peter Fales
...ihnp4!ihlpl!psfales

bobh@pedsgd.UUCP (Bob Halloran) (09/09/85)

In article <330@ihlpl.UUCP> psfales@ihlpl.UUCP (Peter Fales) writes:
>> Radio Shack has an inexpensive box now which can contol BSR units, but the
>> software is meant for a Color Computer. It attached via a RS-232 port and
>> runs independant of the computer except for the setup commands. It also
>> has backup power.
>
>Sorry, I checked this out this weekend when the Radio-Shack box went on
>sale.  It interfaces to the Color computer through the cassette
>interface.  It undoubtably could be made to work with other computers, but
>it would not be a trivial task.
>
>Peter Fales
>...ihnp4!ihlpl!psfales

Heathkit sells the 'official' RS-232 BSR controller (feed at 110-2400 baud)
for $99.95.  They apparently include driver software for CP/M.

						Bob Halloran
						Sr MTS, Perkin-Elmer DSG
=============================================================================
UUCP: {decvax, ucbvax, most Action Central}!vax135\
		       	 {topaz, pesnta, princeton}!petsd!pedsgd!bobh 
ARPA: petsd!pedsgd!bobh@topaz
USPS: 106 Apple St M/S 305, Tinton Falls NJ 07724
DDD: (201) 758-7000
Disclaimer: My opinions are my own.
Quote: "History is made at night.  Character is what you are in the Dark."

rb@ccivax.UUCP (rex ballard) (09/13/85)

> INCORRECT!   The unit from Radio Shack is *NOT* controlled by an RS232
> port!  The unit connects to the  Color Computer's CASSETTE TAPE interface,
> and there is *NO* documentation on how the CoCo communicates with
> the box.  Th link is bi-directional, meaning the controller box
> can download it's contents to the CoCo for updating, and once
> finished, the CoCo uploads the updated information back into the
> controller.  Once the controller has been programmed with events
> it may be disconncted from the CoCo and runs by itself.  I recently
> purchased one of these, and while the software supplied with it
> (in CoCo ROMPack form) is cute (graphic oriented), it's tedious and
> slow to use.  If anyone out there has **ANY** information on how
> this beastie communicates with the  CoCo, I'd really appreciate
> hearing from you.
> 
>
The exact details are available from the CoCo "Service Manual" (the little
green book) at most RS stores.  Unfortunately, the Cassete port is just
an "analogue switch",  The usual format is KC-1200 format.
   |<1>|<-0->|
    _   __      
___| | |  |  |       (the logical 1,0 may be opposite)
     |_|  |__| 

If regular BASIC cassette I/O commands work or there examples of it
in the owners manual, then this will work.  A line reciever can be
built using an op-amp.

They may have used the Cassette Port because of certain hardware advantages.
(Basic can't write to the RS-232 port,only "Dload")

If they wrote their own interface in ML, it's anybody's guess.