looking for Motorola App note AN897

[frederic...@gmail.com]

Hello.

I am looking for this application note. I search the web, but
strangely enough, I find it referenced plenty of time, but can't find
the pdf.

I would appreciate if someone could send me a pointer to it, or the
file itself !

PS: reason is to build a little computer based on a MC68008 to teach
some compute science to my son

-Fred

[James M. Knox]

frederic...@gmail.com wrote in news:3a4db1f0-fe7c-432d-bb0e-
b21fd9...@f36g2000hsa.googlegroups.com:

> I am looking for this application note. I search the web, but
> strangely enough, I find it referenced plenty of time, but can't find
> the pdf.
>

> PS: reason is to build a little computer based on a MC68008 to teach
> some compute science to my son

I don't seem to have that AN online. However, may I suggest something
better. As much as I like the CPU32 series (I'm an old time 68000
programmer from WAY BACK), it is much easier and more flexible to work with
the newer HCS12 family. You can get a small PCB online for around $50, or
build one yourself. MCUez is free (assembler/linker), as is serial
debugger programs. I believe a student version of Codewarrior is also
free.

Alternately, if you want to concentrate more on the software aspects, you
might try to find an old TRS-80 Model 6000 or -16 that works. That gives
you a MC68000 with display, memory, keyboard, etc.

jmk

[Jeff Jonas]

> PS: reason is to build a little computer based on a MC68008
> to teach some compute science to my son

If you're very familiar with the 68k and have the
cross development tools, then go for it.
I was forced to buy a $100+ 68008 development kit
for a college lab course. It was fun to use
but there are so many newer chips that do more,
are better supported and are a lot more fun to use.

Consider the AVR or PIC chips,
particulary those with built-in flash ROM
so they retain the programming without power.

The "AVR Butterfly" is a $20 ready-to-run board
that's extremely well supported by the mfgr
and by users via BBS/blog/web-sites.

There are many gumstick-sized PIC-16 and PIC-18
ready to run experimenter's kits that are already programmed
with a boot ROM (no programmer needed).
The PIC-18 is better suited for C programming
via Microchip's free compiler, or the GNU tools.
I used the PIC 18f252 based APP-III GPMPU28 from
http://www.awce.com/ and was up-and-running overnight.

Radio Shack sells the "Basic Stamp" but they're rather expensive
and there are many clones that are faster with more RAM and ROM.

[Jeff Jonas]

>PS: reason is to build a little computer based on a MC68008 to teach
>some compute science to my son

Yeep! I mentioned non 68k chips on the 68k forum!
How about some of the more modern Freescale (formerly Motorola)
versions such as ColdFire.

[jno...@yahoo.com]

The Application Note is on line at
http://www2.hibbertgroup.com/freescale/main?action=hibbertgroup.client.freescale.ui.inventory.InventorySearchController&page=/templates/inventory/inventory_search.jsp&component=inventory&operation=view&status=A

Item number is AN897 and Status is Archive.