KO4BB's Microprocessor Pages
68HC05 Source Code samples
A keyer for the single lever paddle
The keyer uses the MC68HC705K1 but the code can be easily tailored to other 68HC05 devices or other Motorola microcontrollers.
Check the different versions of Source Code. Review the various versions of code and tailor to your
application.
The earlier versions are very simple, the later versions have a sleep timer (the CPU goes to sleep after a few seconds of
inactivity), and they have my call sign embedded, activated by a new switch. Make sure you change that part before burning
your part.
More samples coming...