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Last update: 1 November 2005

If you need help with a 68HC11 or 68HC12 application,
be sure to check Motorola's Support page first,
at http://e-www.motorola.com/support/index.html

Online Discussion Groups:

Would you like to:
  • network with others using Technological Arts products?
  • receive notification of technical updates and bugfixes?
  • receive new product announcements?
  • share code and information with other users?
Then subscribe to our support forum:
http://support.technologicalarts.ca/forum/

To view archived messages from the old Yahoo Group forum, click this link: techart-micros
 

 Motorola's 68HC11 and 68HC12 Email Discussion Groups
Join one of these groups for help with understanding and applying the MCU in your application.  These are very active groups, including users from all over the world.  The subscribers range from entry-level to expert, and include Motorola engineers.  Highly recommended!

Click the links below to join or view messages:
68HC11 group
68HC12 group

An archive of previous postings to the Motorola 68HC12 group (up until March 2002) is now available at http://kg8ih.cit.cwru.edu/hc12/

 ICC11 and ICC12 C Compiler Users
ImageCraft has a number of groups, including one for users of their C compilers for HC11 and HC12 (icc-mot).http://www.dragonsgate.net/mailman/listinfo		 GNU C for 68HC11
Join this group if you are using the GNU open-source C compiler for 68HC11.
 http://groups.yahoo.com/group/gnu-m68hc11/

JBug11 for 68HC11
Join this group if you are using the new Windows version of PCBug11 called JBug11.
http://groups.yahoo.com/group/Jbug11/ 

ESD Protection: Beginners:
Tech Support Notes By Product:
68HC12 Products:
Important Note for Adapt912 Users:
You should turn on the programming voltage (Vfp) only while you are erasing and downloading a file to Flash, and then turn it off when you are finished.  Applying power to the board with the Vfp switch on can damage the MCU!!!  Refer to the Motorola MC68HC912B32 data sheet for more information.  The same rule applies to all variations of the 68HC912.
Updating DBug12 Firmware in your MicroBDM12SX pod:
1) Open case (2 screws located on the underside)
2) Move shorting plug on JB2 so that it is connected
3) Move shorting plugs on JB3 to BDM IN
4) Connect a BDM pod (must be a DP256-based pod such as a MicroBDM12SX or an Adapt9S12DP256 board with pod transformer) to your target pod BDM connector
5) Power target pod via J1 (any DC voltage between 5V and approx. 12V DC will do)
6) Set device on pod (device DP256), do FBULK, and then FLOAD both files (the 
ones with 16 at the end)
7) Disconnect pod, remove JB2, move JB3 back to BDM OUT
8) Put screws back in case
Adapt912DT60 and Adapt912DG128 Users:
  • Important note regarding the second analog subsystem on Rev. 0 and Rev. 1 boards.
  • Note from Motorola discussion group regarding 912D60 COP watchdog behaviour:
    • The DISR bit can only be written in special modes, not in normal modes. If you attempt to simply set the DISR bit when coming out of reset in normal modes, it will NOT disable the COP. Remember, BDM tools reset the parts in Special mode, with the DISR bit already set. However, in working with the 912D60 I have found a difference between it and the B32 in writing the COPCTL register during development. With the D60 & B32, even though the DISR bit is set after a reset in Special Single Chip mode the COP timer chain continues to run causing a 'COP time-out' to occur internally. A COP timer reset is prevented because the DISR bit is set. When your code begins to run and the COPCTL register is cleared in the B32, both the DISR & the COP rate select bits are cleared, disabling the COP timer. However, in the D60, I have observed that simply clearing the COPCTL register allows the COP reset to get through. My solution to this development problem was to perform a COP reset sequence BEFORE clearing the COPCTL register.
 
Adapt12 Family Starter Package Manuals in Acrobat format:
Adapt812 (Rev. 1d) Adapt812DX (Rev. 0d) Adapt812MAX (Rev. 0)
Adapt912 (Rev. 1e) AN106 (for Adapt912DG128) AN107 (for Adapt912DT60)
Technological Arts 68HC12 Starter Package Disk:
812 (Rev. 4) 912 (Rev. 2)
Help with HC12 Products:
Technological Arts Application Notes (in Acrobat format):
Using the Adapt812 MX1 Memory Expansion Card
Third-Party Files:
Motorola's 912 EVB Manual (includes DBug12 documentation)
Motorola's D-Bug12:
Version of DBug12 V2.0.2 modified to run in expanded RAM (eg. on Adapt912 MX1)
An alternative to DBug12 written by Lee Robertson
MiniIDE
  • freeware Integrated Development Environment for Windows
  • has text editor, terminal window, HC12 macro assembler
68HC11 Products:
MicroLoad:

Get the latest version of our free Windows-based downloader for your 68HC11 board here.

Product Errata:

Printable Starter Package Manuals in Acrobat format:
MicroStamp11 (Rev. 2e) MicroCore-11 (Rev. 2a) Adapt11 (Rev. 3r)
68HC11 Starter Package Disk:
(Rev. 8b)
Selected Module Data Sheets:
Adapt11C75DX/E/R Drawing/Pinout Schematic
Miscellaneous Documents:
 
Instructions for Returns
Please note the following guidelines for returning products:

1)    Obtain an RMA number (ie. Return Material Authorization number) from us before sending anything back;  if not, we may refuse it
2)    Customers outside Canada MUST NOT use FedEx Ground or UPS Ground without express permission from us (due to excess Customs brokerage charges).  However, you may use Air service, as it includes Customs clearance.  We recommend using Global Priority Mail, as it is inexpensive and trackable.
3)    Wrap circuit boards in anti-static material or place them in the anti-static pouch they came in.  Improper packaging may void warranty.
4)    Pack securely, with adequate padding to prevent damage or loss in transit
5)    Mark clearly on the outside of the box, and on any Customs forms:  RETURNING CIRCUIT BOARDS FOR REPAIR - MADE IN CANADA
6)    Note:  the Country of Origin is Canada (not USA).  If you put USA, and we are charged import duties, we will bill your credit card
7)    Do not send anything to us "freight collect"--  we will refuse it!
8)    Send the package to:

Technological Arts, Inc.
Attn.:  Repair Dept.
533 College St., Suite #301
Toronto, ON  M6G 1A8
Canada
Technological Arts, Toronto, Canada
Toll-free:  1-877-963-8996 (USA and Canada)  Phone: (416) 963-8996 Fax: (416) 963-9179
www.technologicalarts.com
©2005 Technological Arts