?How to minimize program memory size?

[pengliang]

I am using CW V10.3 for Kinetis L KL25Z development. Also, I use PE for generating the hardware initialization code.

The program size is quite large like 4k Byte. even I just toggle an LED. why is that large? because of PE generated code? How can I minimize the program memory size?

Thank you

[carxander]

Hello!

Recently i read this post from Erich, I hope this help:

Optimizing the Kinetis gcc Startup | MCU on Eclipse