this isn't working the servo just twitches

Dependencies:   Servo mbed Motor

main.cpp

Committer:
Ty
Date:
2014-10-05
Revision:
0:22157cad3c1e
Child:
1:7fa77283f89e

File content as of revision 0:22157cad3c1e:

#include "mbed.h"
#include "Servo.h"

Servo launchservo(p21);
DigitalIn sw3(p18);
int launchswitch;
int main() {
    
    while(1){
    launchservo=0;
    launchswitch=sw3.read();
    }//hey guys when I'm testing this code the servo just twitches it doesn't rotate I don't know whats up
            
        
    }