Due to low activity, the www.gnu-m68hc11.org site was moved to http://gnu-m68hc11.vacs.fr/

Hardware or software problem? That's the question when your embedded board does not work as expected. Spotting the issue can be a challenge.

The article Fixing the rising edge of a 68HC11 output signal explains the hardware issue that I had, how I investigated it and finally solve the software issue which was the origin of the problem.

Answer the poll What kind of packages are you the most interested in for the GNU development chain?
and tell what is your prefered distribution.

Release 3.1 of the GNU HC11/HC12 port is now available.
It is available as source and binary for GNU/Linux and Windows.

It contains the following fixes and improvements:

Gcc
* Upgrade to gcc 3.3.6
* Fix [bug #15493]: Code generation problem on 68HC12
* Fix [bug #13917]: Bug in gcc 3.0.1. Error with pre-decremented pointer array and -Ox switch
* Fix [bug #13879]: gcc gets a bus error upon compiling a file with -mshort and -O2

Gdb
* Upgrade to gdb 6.4

This is available on the following sites:

http://m68hc11.serveftp.org/m68hc11_port.php
http://www.gnu-m68hc11.org

and also on anonymous ftp server:

Release 3.0.1 of the GNU Development Chain for 68HC11/68HC12 is available. It is based on Binutils 2.15, Gcc 3.3.5, Gdb 6.2 and Newlib 1.12.0.

It is available as source and binary for GNU/Linux and Windows.

It contains the following fixes and improvements:

Gcc
* Fix [bug #11813] Code generation problem (bset/bclr -m68hc12 -Os
indirect addr)
* Fix [bug #12243] Loop compiles incorrectly (HC12)
* Fix [bug #12297] -fomit-frame-pointer and -Os generate wrong code on
the HCS12
* Fix [bug #12572] internal compiler error; unsigned short in for loop

This is available on the following sites:

Tom Burrell (tburrell at southwestmicrowave.com) wrote a port of GDB for FreeGeek's TBDML12 pod for the 68HCS12 .