Began graduate school this year, but next semester will opening direction, or mentally state at present, for now able to skillfully use Linux system, familiar with assembly language and C language, also once manually produced a belt system development board (including hardware design and system transplantation, all of our operation), but still don't know how to choose the direction of the research, may be the reason for the basic knowledge is partial weak, online to check the paper monohydrate embedded software development, but I want to do, don't know how to understand the relevant knowledge, also may be I don't check the keywords for the cause of), currently only know what is the low power consumption, assembler, RISC - v and so on part of the very few things, I hope you see this post bosses can tall me, how do I change to get what I want,