本文是我在南京秦泰教育公司实习期间的实习报告，为P9011通信控制板的设计，内容很详细，从原理图到源代码都有。-This is my Thai education company in Nanjing Qin practice report during the internship period, the P9011 communications control panel design, content is very detailed, to the source code from the schematic there.