Few years ago I found somewhere on NXP community and downloaded KL27-FRDM-SDK zip file. Maybe someone have and can attach here, same zip file for KL28.
Hello Josip Haluska
You can find the board sdk at this page https://mcuxpresso.nxp.com/en/welcome
Let me know if this is helpful, if you have more questions do not hesitate to ask me.
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