MC6821

C

CV

Guest
Hello,

I found a few MC6821 and would like to do something with them. I found some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't find the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does anyone
know of a pretty simple programmer which makes it possible to program the
microcontroller via the parallel/serial/usb-port of a pc? Which software to
use?

Thanks in advance,

CV
 
CV wrote:

Hello,

I found a few MC6821 and would like to do something with them. I found some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't find the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does anyone
know of a pretty simple programmer which makes it possible to program the
microcontroller via the parallel/serial/usb-port of a pc? Which software to
use?

Thanks in advance,

CV




The MC6821 is a parallel interface chip. It has to be programed but when
Click to expand...
the power
goes away so does the program.

Good luck
Bill K7NOM
 
On Fri, 05 Nov 2004 13:30:44 GMT, "CV" <phenixindark@hotmail.com>
wrote:

Hello,

I found a few MC6821 and would like to do something with them. I found some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't find the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does anyone
know of a pretty simple programmer which makes it possible to program the
microcontroller via the parallel/serial/usb-port of a pc? Which software to
use?
Click to expand...
The MC6821 is a parallel interface adaptor commonly used with Motorola
6800 and 6809 processors. It is not a microprocessor or
microcontroller by itself.

Any programming it needs (more correctly, configuration) is done by
the program running in the associated processor.



--
Peter Bennett VE7CEI
email: peterbb4 (at) interchange.ubc.ca
GPS and NMEA info and programs: http://vancouver-webpages.com/peter/index.html
Newsgroup new user info: http://vancouver-webpages.com/nnq
 
"CV" <phenixindark@hotmail.com> wrote in message
news:8gLid.12359$Lc3.670860@phobos.telenet-ops.be...
Hello,

I found a few MC6821 and would like to do something with them. I found some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't find the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does anyone
know of a pretty simple programmer which makes it possible to program the
microcontroller via the parallel/serial/usb-port of a pc? Which software to
use?

Thanks in advance,

CV

Data sheet at:
Click to expand...

http://www.cs.net/lucid/6821_data.pdf
 
"Brian Lyons" <Nospam@nowhere.com> wrote in message
news:c54no0trbs043ptvon5omob6gg256kkn2j@4ax.com...
On Fri, 05 Nov 2004 13:30:44 GMT, "CV" <phenixindark@hotmail.com
wrote:

Hello,

I found a few MC6821 and would like to do something with them. I found
some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't find
the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does anyone
know of a pretty simple programmer which makes it possible to program the
microcontroller via the parallel/serial/usb-port of a pc? Which software
to
use?

Thanks in advance,

CV



Why not try www.goggle.com ???????

First link on search for mc6821 is:

http://esaki.ee.boun.edu.tr/~talays/courses/ee443/Chap_8.pdf


Plenty of good info & data sheets available for this PIA

I didn't find a datasheet a complete datasheet on the motorola site. I just
Click to expand...
found parts of datasheets everywhere (e.g. from page 245-259)
 
"CV" <phenixindark@hotmail.com> wrote in message
news:8gLid.12359$Lc3.670860@phobos.telenet-ops.be...
Hello,

I found a few MC6821 and would like to do something with them. I found
some MC68HCxxxx microcontrollers on http://www.freescale.com, but can't
find the MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does anyone
know of a pretty simple programmer which makes it possible to program the
microcontroller via the parallel/serial/usb-port of a pc? Which software
to use?
Click to expand...
Thanks for all the answers!
 
"CV" <phenixindark@hotmail.com> a écrit dans le message news:
l32jd.13282$6h2.435265@phobos.telenet-ops.be...
"Brian Lyons" <Nospam@nowhere.com> wrote in message
news:c54no0trbs043ptvon5omob6gg256kkn2j@4ax.com...
On Fri, 05 Nov 2004 13:30:44 GMT, "CV" <phenixindark@hotmail.com
I didn't find a datasheet a complete datasheet on the motorola site. I just
found parts of datasheets everywhere (e.g. from page 245-259)
Click to expand...
Hi all
What you need to use the PIA is in the datasheet pointed by the given link
Your document, "from page 245-259" is a part of the 6800 family databook, in
which the MC6821 is described from page 245-259.
--
Guy Pastuzak

Adresse ANTISPAM
ANTISPAM address
 
On Fri, 5 Nov 2004 18:27:59 -0800, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@dslextreme.com> wrote:

"Brian Lyons" <Nospam@nowhere.com> wrote in message
news:c54no0trbs043ptvon5omob6gg256kkn2j@4ax.com...
On Fri, 05 Nov 2004 13:30:44 GMT, "CV" <phenixindark@hotmail.com
wrote:

Hello,

I found a few MC6821 and would like to do something with them. I
found some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't
find the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does
anyone
know of a pretty simple programmer which makes it possible to program
the
microcontroller via the parallel/serial/usb-port of a pc? Which
software to
use?

Thanks in advance,

CV



Why not try www.goggle.com ???????

Yeah, Right. It's GOOgle, dOOfus!
Click to expand...

Thanks azzhole.

Sometimes I have trouble spelling things correctly.
 
On Fri, 05 Nov 2004 13:30:44 GMT, "CV" <phenixindark@hotmail.com>
wrote:

Hello,

I found a few MC6821 and would like to do something with them. I found some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't find the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does anyone
know of a pretty simple programmer which makes it possible to program the
microcontroller via the parallel/serial/usb-port of a pc? Which software to
use?

Thanks in advance,

CV
Click to expand...

Why not try www.goggle.com ???????

First link on search for mc6821 is:

http://esaki.ee.boun.edu.tr/~talays/courses/ee443/Chap_8.pdf


Plenty of good info & data sheets available for this PIA


Brian
 
I think the 6821 is an I/O chip, not an microcontroller...

Jan-Erik.

CV wrote:
Hello,

I found a few MC6821 and would like to do something with them. I found some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't find the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does anyone
know of a pretty simple programmer which makes it possible to program the
microcontroller via the parallel/serial/usb-port of a pc? Which software to
use?

Thanks in advance,

CV
Click to expand...
 
"CV" <phenixindark@hotmail.com> wrote in message
news:l32jd.13282$6h2.435265@phobos.telenet-ops.be...
"Brian Lyons" <Nospam@nowhere.com> wrote in message
news:c54no0trbs043ptvon5omob6gg256kkn2j@4ax.com...
On Fri, 05 Nov 2004 13:30:44 GMT, "CV" <phenixindark@hotmail.com
wrote:

Hello,

I found a few MC6821 and would like to do something with them. I
found
some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't
find
the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does
anyone
know of a pretty simple programmer which makes it possible to
program the
microcontroller via the parallel/serial/usb-port of a pc? Which
software
to
use?

Thanks in advance,

CV



Why not try www.goggle.com ???????

First link on search for mc6821 is:

http://esaki.ee.boun.edu.tr/~talays/courses/ee443/Chap_8.pdf


Plenty of good info & data sheets available for this PIA

I didn't find a datasheet a complete datasheet on the motorola site. I
just
found parts of datasheets everywhere (e.g. from page 245-259)
Click to expand...
There are other chips in that series, such as the MC6845 video
controller (and of course the 6800 processor itself), so what you found
was probably all of the pages for the 6821.
 
"Norm Dresner" <ndrez@att.net> wrote in message
news:wt6ld.890780$Gx4.673397@bgtnsc04-news.ops.worldnet.att.net...
CV wrote:

Hello,

I found a few MC6821 and would like to do something with them. I found
some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't find
the
MC6821 there.
Can anyone tell me where to look for the datasheets?


http://www.google.com

The very first hit I got was for a .PDF data sheet.

Norm
Click to expand...
Data sheet at:

http://www.cs.net/lucid/6821_data.pdf
 
"CV" <phenixindark@hotmail.com> writes:
I found a few MC6821 and would like to do something with them.
[...]
If I want to do something with them, I will need a programmer.
Click to expand...
Good luck finding a "programmer" for the MC6821. It doesn't contain
any memory, unless you count a few dozen bits of registers. It's
just a parallel interface adapter (PIA), almost identical to the
MC6820, MC6822, and MCS6520.
 
"Eric Smith" <eric-no-spam-for-me@brouhaha.com> a écrit dans le message news:
qh6545ffzb.fsf@ruckus.brouhaha.com...
"CV" <phenixindark@hotmail.com> writes:
Good luck finding a "programmer" for the MC6821. It doesn't contain
any memory, unless you count a few dozen bits of registers. It's
just a parallel interface adapter (PIA), almost identical to the
MC6820, MC6822, and MCS6520.
Click to expand...
That means that in fact, the program is the one of the microprocessor (6800), of
which 6821 is a peripheral
--
Guy Pastuzak

Adresse ANTISPAM
ANTISPAM address
 
"Brian Lyons" <Nospam@nowhere.com> wrote in message
news:c54no0trbs043ptvon5omob6gg256kkn2j@4ax.com...
On Fri, 05 Nov 2004 13:30:44 GMT, "CV" <phenixindark@hotmail.com
wrote:

Hello,

I found a few MC6821 and would like to do something with them. I
found some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't
find the
MC6821 there.
Can anyone tell me where to look for the datasheets?

If I want to do something with them, I will need a programmer. Does
anyone
know of a pretty simple programmer which makes it possible to program
the
microcontroller via the parallel/serial/usb-port of a pc? Which
software to
use?

Thanks in advance,

CV



Why not try www.goggle.com ???????
Click to expand...
Yeah, Right. It's GOOgle, dOOfus!

First link on search for mc6821 is:

http://esaki.ee.boun.edu.tr/~talays/courses/ee443/Chap_8.pdf


Plenty of good info & data sheets available for this PIA


Brian
Click to expand...
 
CV wrote:

Hello,

I found a few MC6821 and would like to do something with them. I found
some
MC68HCxxxx microcontrollers on http://www.freescale.com, but can't find
the
MC6821 there.
Can anyone tell me where to look for the datasheets?
Click to expand...
http://www.google.com

The very first hit I got was for a .PDF data sheet.

Norm
 
You must log in or register to reply here.

Welcome to EDABoard.com

Sponsor

Back
Top