Recently received a project，Demand is to do a special project Andrews board serial read and write in order to achieve some specific external devices to interact with - yes you read right，Andrews is also a board can have serial port!
Many friends do mobile development may not come into contact with - in fact, before I did not come into contact with。He stepped on seven or eight hours a pit，Finally climb out，Here to do a summary，Each board may project different circumstances，We must improvise。[……]