NXP provide evaluation version
https://www.nxp.com/design/design-center/software/development-software/codewarrior-development-tools...
Evaluation Licenses
All CodeWarrior product evaluations now automatically install a 30-day full license. DO NOT need to register to get an evaluation license key.
So you could use it for free 30 days.
Beside the evaluation version, there are also Developer Suite Level version and Specialist Suite Level version, both need to purchase a license, but if you don't want to do DDR and SerDes validation, you could purchase the Developer Suite Level version.