Hello,
Thank you for reporting of this issue. The issue can be reproduced when the Callback property is set to Disabled and the Kinetis SDK 1.2.0 is used. In this case, use the workaround that has been published by Vojtech Filip, please.
Please note that the fsl_hwtimer component has been already fixed in the Processor Expert for KSDK 1.3.0 version (KSDK 1.3.0 Eclipse Update).
Best Regards,
Marek Neuzil