[Coco] A fun (to me) discovery ...

[Rocky Hill]

 Cool!
If the MC-10 had a 2nd serial port(I guess you could bit bang another one) could you emulate the TNC with it?  That would be a cool project  .

    On Monday, January 2, 2023 at 12:34:36 AM EST, Robert "Exile In Paradise" Murphey via Coco <coco at maltedmedia.com> wrote:  
 
 Just taking a moment to share a fun (to me) CoCo-ish related-ish
discovery...

My Kantronics KPC-2 Terminal Node Controller (TNC) is powered by a
Hitachi HD6303X.

The HD6303 is Hitachi's extended implementation of the Motorola 6803
which is the microcontroller which powers the MC-10...

The KAM KPC1-2-4 2400 Install manual included a
"BASIC Terminal program for the TRS-80 Model III"
1 OUT 232,0
2 OUT 232,164
3 OUT 233,85
4 CLS
10 IF INP(234) AND 128 THEN PRINT CHR$(INP(235));:GOTO 10
20 A$=INKEY$: IF A$="" THEN 10
30 IF INP(234) AND 64 THEN OUT 235,ASC(A$): GOTO 10 ELSE GOTO 30

And the following instructions:
Put the TRS-80 Model III in BASIC.
Type and run the program.
When the program is run the screen will go blank.
At this time turn on the TNC.
The TNC will send the PRESS * FOR AUTOBAUD routine.
This program uses a 3-wire cable as described in the Connecting your
Computer section.
Wire only RXD, TXD, and SG.

Kind of neat to me to find out after all these years that my KPC-2 and
MC-10 are cousins of a sort.

-- 
Robert "Exile In Paradise" Murphey <exile at weylan-yutani.com>
Weylan-Yutani Corporation


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