Hello
Originally we tested CodeWarrior for HC11 on following Freescale evaluation boards:
M68HC11EVS
M68HC11EVM
M68HC11EVB
M68HC11EVBU2
I have no clue which one of these boards are still available for purchase.
Source code for ROM monitor are delivered with CodeWarrior for HC11. Look at directory {Install}\Monitor\HC11c.
Also if you are using your own board, look at {Install}\docu\HC11\manual\Manual Small Monitor HC11.pdf.
Section "Porting the Monitor Program to your Own Hardware" provides info on how to achieve that.
I hope that helps a little bit.
CrasyCat