Documentation

General

Assembler manual
Getting started: The Dragon12 MC9S12DP256 Development board
Advanced information for the MC9S12DP256   748 pages
Reference manual (450 pages). if you are looking for the instruction set. Check 6.7 in this manual
A quick reference to 68HC11 and 12 instruction set  the missing lines are aba      add a to b (8) bits
                                                                                                               abx      unsigned add x+b
                                                                                                               aby      unsigned  Y+b
 second column                                                                                         incb    increment register b
                                                                                                                ins       increment s

Lab 1

Dbug12
Dragon12 schematic  
Memory map 


Lab 2

Using the callable routines in Debug12 
Reference manulal (see the general section)
Logic analyzer