Motorola HC16 finally came, now what :-)

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3 total messages Started by Vince Herried ext 2877 Tue, 08 Sep 1992 17:38

#662

Author: Vince Herried ext 2877
Date: Tue, 08 Sep 1992 17:38

36 lines
2192 bytes

The MCU chip has a DS0, DS1, and some kind of clock line that goes to a PAL
chip.  The PAL converts the serial data into a parallel I/O line.
The book says ,plug in yer 25 wire cable between yer IBM pc and
the HC16 Evaluation board and run....

I don't have an IBM pee cee.  I've got a Commodore Amiga which uses
a MOTOROLA 68030 micro.  I think I can come up with an assembler, or
at least get my files assembled.  I would like to talk to the evaluation
board via my Amiga.

Here is the question......
Does anyone know the parallel port protocol used?
The PAL appears to convert the 17 bit command words as documented by the
CPU16 manual into a 'centronics' parallel port format.  The PAL connects
to 7 of the 8 data lines (The high order line is Not Connected?) the
Ack line, and the busy line.  The question is,  
are all 7 bits used, taking turns sending and receiving?
Are some used to send and others used to receive?
How is the handshaking done?  Do I gotta hook a logic probe just to
find out how the data gets to and fro?

I'm ready to start writting code on my Amiga but need some protocol first.

Email would be fine.
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Re: Motorola HC16 finally came, now what :-)

#663

Author: Eric Muller
Date: Tue, 08 Sep 1992 18:32

6 lines
683 bytes

In article <1992Sep8.173831.29537@cas.org>, Vince Herried ask about
the protocol between the HC16 evalutation board and the PC used for
development.  I would be very interested to get this info as well.

Thanks,
Eric.

Re: Motorola HC16 finally came, now what :-)

#683

Author: Richard Heiler
Date: Wed, 09 Sep 1992 20:51

15 lines
803 bytes

rick\@hpprsd1.mayfield.hp.com

Hello,

I have the same problem.  I would like to use my SE/30 and a pc simulator
instead of a pc.

I called Motorola and they referred me to the company who wrote the    
programming environment.  They said no way!  They wouldn't even give me
a description of how the i/o worked.  

Good Luck,


Rick Heiler

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