Hello Jeemon:
You can start by downloading the sample code package called "KINETIS_120MHZ_SC" under "Snippets, Boot Code, Headers, Monitors, etc" from the next link:
K70_120 |Kinetis K70 120/150 MHz MCUs|Freescale
The examples are available for IAR and CodeWarrior.
Regards!,
Jorge Gonzalez
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