Rookie 0 Basic self-study ARM9 and Linux notes made during the process

I am an Automation professional students, recently began to self-study ARM9 and Linux, in the course of learning will inevitably encounter some problems, to understand these problems, it may be very clear, but after a period of time may be forgotten, so think to be able to make some notes, before learning SCM and STM32, is to make a note of a word saved to their own computer, and then suddenly think of the learning process to write a note as a blog, so that later will be more convenient to look up. So apply for the blog Park account began to write a blog, which is written in the first blog,

Rookie 0 Basic self-study ARM9 and Linux notes made during the process