Send the file to PC, laptop cannot send a desktop, what's the matter, the old tip send failure

CodePudding user response:

Line can't be wrong, corresponding the 2-3-5 and 2-3-5,

CodePudding user response:

General computer and single chip microcomputer serial port,

CodePudding user response:

Try the line the two ends of the switch over to see whether this, in turn, if it is, is a line in the cable has a problem, or the end of the first contact is not good,

CodePudding user response:

Problems of the code?

CodePudding user response:

Can have a try, the main problem is the connection problem,