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。
First of all you need to know
Jumper,In order to save the project board USB interface,The default external USB interfaces are not connected to the computer debugging[……]