File content as of revision 37:3c427322799d:

//GrannyStepper
#include "mbed.h"
#include "PM2_Libary.h"
#include <iostream>
using namespace std;

//Eingänge
DigitalIn user_button(PC_13);

//Ausgänge
DigitalOut enable_motors(PB_15); // Motoren freischalten

// while loop gets executed every main_task_period_ms milliseconds
int main_task_period_ms = 50;   // define main task period time in ms e.g. 50 ms -> main task runns 20 times per second
Timer main_task_timer;          // create Timer object which we use to run the main task every main task period time in ms

//DC-Motoren
float   pwm_period_s = 0.00005f; //PWM-Periode fürd DC-Motoren definiert
FastPWM pwm_M1(PB_13); 
//Endcoder
EncoderCounter  encoder_M1(PA_6, PC_7);

// create SpeedController and PositionController objects, default parametrization is for 78.125:1 gear box
float max_voltage = 12.0f;                  // define maximum voltage of battery packs, adjust this to 6.0f V if you only use one batterypack
float counts_per_turn = 20.0f * 78.125f;    // define counts per turn at gearbox end: counts/turn * gearratio
float kn = 180.0f / 12.0f;                  // define motor constant in rpm per V
float k_gear = 100.0f / 78.125f;            // define additional ratio in case you are using a dc motor with a different gear box, e.g. 100:1
float kp = 0.1f;                            // define custom kp, this is the default speed controller gain for gear box 78.125:1

// SpeedController speedController_M2(counts_per_turn, kn, max_voltage, pwm_M2, encoder_M2); // default 78.125:1 gear box  with default contoller parameters
SpeedController speedController_M1(counts_per_turn * k_gear, kn / k_gear, max_voltage, pwm_M1, encoder_M1); // parameters adjusted to 100:1 gear
float max_speed_rps = 0.5f;                 // define maximum speed that the position controller is changig the speed, has to be smaller or equal to kn * max_voltage


int main(){


    int counter_user_button = 0;
    bool counter_stopp = 0;
    enable_motors = 1;

    while(1){
        
        if ((user_button.read() == 0) & (counter_stopp == 0)) {
            counter_user_button++;
            counter_stopp = 1;

        }
        if (user_button.read()){
            counter_stopp = 0;
        }
        if (counter_user_button >= 3){
            counter_user_button = 1;
        }
        float speed_counter;
        switch (counter_user_button){
            case 1:
            speed_counter = 0.5f;
            break;
            case 2:
            speed_counter = 0.0f;
            break; 
        }
    speedController_M1.setDesiredSpeedRPS(speed_counter);
    printf( "counter %d    stopp %d    button %d \n",counter_user_button, counter_stopp, !user_button.read());
    }
        
}