CodeWarrior Development Studio for HC12 4.5 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available.
CodeWarrior Development Studio for HC12 lies within System Utilities, more precisely Device Assistants. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This program was originally created by Freescale. The most popular versions of the tool are 5.1 and 4.5.
From the developer:
CodeWarrior Development Studio for Freescale HCS12(X) Microcontrollers enables engineers to build and deploy HCS12 or HCS12X/XGATE systems quickly and easily. This tool suite provides the capabilities required by every engineer in the development cycle: from board bring-up to firmware development to final application development.
You may want to check out more software, such as CodeWarrior Development Studio for S12 X, CodeWarrior Development Studio for Microcontrollers or CodeWarrior Development Studio for 56800/E Digital Signal Controllers, which might be related to CodeWarrior Development Studio for HC12.
IDE