Compression bag is my phone information, craftsmen, and some mobile phones do require knowledge of hardware is useful, we can refer to the

匠人手记\串口七日.pdf
........\做硬件需要的知识.doc
........\用 IAR C.doc
........\硬件工程师面试试题及答案.doc
........\第一单片机基础知识.pdf
匠人手记

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