Like wildfire routines at the beginning, I use a switch statement and getchar for keyboard input characters to do related execution, want to use a serial port interrupt at the same time, the result found getchar not too good, need to enter only occasional success once many times, I see overweight directional function after feel because redirection and serial port interrupts were used to setting rxne sign or not to as a condition of judgment, so is it because the cause of the conflict?
And I see the punctual atomic routines directly inside, there is no to redirect the scanf asked some people say that SCM rarely use the scanf,
Please god help me ~ ~

CodePudding user response:

I also encountered this problem, the whole for a long time, I also feel is for this reason, but don't have to redirect the scanf, so you can try off interrupt

CodePudding user response:

reference 1/f, mengniu pure coke response:

this problem I also met, the whole for a long time, I also feel is for this reason, but don't have to redirect the scanf, so you can close the interrupt try

Have to give up this way, just for verification, learn more than the original poster

CodePudding user response:

Interrupts can indeed, but generally don't use the scanf, getchar redirection, would not avail much