The 68HC11 is not recommended for new designs see http://www.freescale.com.
A 68HC08, 68HCS08 or 68HC12 would be a much better choice if you really need
to re-use old HC11 assembly code.

If you are really stuck using it then I recommend you join the 68HC11
mailing list, it used to be run by Motorola but is now a Yahoo group. Also,
I would make it clear to the management that they are likely to receive a
final lifetime buy notice for the 68HC11 as soon as Freescale's existing
inventories run out. If they still insist on the 68HC11 then, you'll get to
redesign the system for a different processor in probably a year or two.

The 68HC11 has a very poor price vs. perfomance compared to any of the newer
processors designed in the last decade. For single chip applications I've
moved all our products to PIC's and for large memory applications, 32K+,
I've moved our products to the Z8Encore! parts.

Paul

>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf
>Of Denny Esterline
>Sent: Wednesday, September 21, 2005 12:52 AM
>To: piclist@mit.edu
>Subject: [OT] 68hc11?
>
>
>Yeah, I know. Booo... Hissss...... I feel like a traitor even mentioning
>them on this list, but...
>
>It's looking like I might have a future project that uses the 68hc11f1,
>since I haven't any prior experience with those, I thought I might solicit
>advice from those of you that have.
>
>And before you ask, yes I'd love to just redesign with a PIC, but it's not
>an option.
>
>So, what's the best way to get my arms around this thing? Any special
>gotchas to look out for? Recommended software tools? (assembler, simulator,
>etc)
>
>
>Lastly, it's complicated, but I don't expect to get the hardware for 6-8
>weeks, so I'd like to get my hands on a devboard or even just a couple of
>chips so I can work through the basics. Does anybody have any hardware
>collecting dust they'd be willing to part with?
>
>Thanks,
>-Denny
>
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