I forwarded your post to tech support. Without knowing more information to work with, tech support suggested that this patch might correct your problem:
From the release notes:
CW12 V3.1 USB 2.0 Service Pack Release date: 1/11/2005
CW12_V3_1_ICD12_USB2_0_Sim_patch.exe contains simulation updates and P&E Microcomputer interface DLLs for CodeWarrior Development Studio for HC12 Microcontrollers, Version 3.1. The updates include the following:
- Simulation
- Updated ECT module simulation to match silicon performance
- Correct memory map
- P&E interface DLLs
- Option to connect to a running target - "hot plug"
- Option to insert control points "live" on HCS12 derivatives that allow the on chip break module to be modified while the CPU is running.
- Option to ensure no device memory accesses while CPU is running.
- Option to Resynchronize from COP/watchdog reset
- Improved, faster FLASH programming support
- "Banked Memory Location" dialog has been replaced by a more general purpose Debugging Memory Map dialog and manager
- Support for P&E USB 2.0 BDM Multilink cable (USB-ML-12 rev. B).
- Latest P&E firmware will be downloaded to cables automatically.
The use of the USB 2.0 BDM Multilink interface for HCS08 and HCS12 microcontrollers are fully supported on the following operating systems: Microsoft Windows 98, 2000 and XP.
NOTICE: If a derivative specific service pack has been installed, this HC12 USB 2.0 Service Pack will replace the installed dynamic link libraries, flash programming algorithms and other functional binaries with updated versions.
It is not recommended to install derivative specific service packs that were released prior to January 2005 once the HC12 USB 2.0 Service Pack has been installed. The HC12 USB 2.0 Service Pack cannot be removed once installed.
This archive was submitted on 1/11/2005 and occupies 4.7 MB of disk space.
You can download it at URL:
Download Update (4.7 MB)
Marc.