68HC11 Sample Code

• simple echo program with LED-based typing-feedback and hexadecimal line-counter.

• basic interrupt-counter with LED-based counter-feedback - an example of writing and installing a basic ISR.

• input-capture - detecting logic-level edges using input-capture facilities, also input-capture interrupts.

• interrupt-driven PS/2 keyboard scancode reader/reporter - deserialiser, asynchronous-reader/writer circular buffer, sampling serial-data line in response to clock-line transitions.

  
  

• masm11 - shell-script to invoke cpp preprocessor and then as11 assembler in such a manner as to produce both a loadable object-code file and a #include-able symbol-table.