C++ Motor Reset Function: motor_reset() Explanation

The above code is written in C++ programming language.

The function 'motor_reset' is defined to reset the position of the motors.

The function does the following:

1. Starts the Y-axis motor by calling the 'motorY_lunch' function with a parameter value of 1.

2. Starts the X-axis motor by calling the 'motorX_lunch' function with a parameter value of 1.

3. Controls the X-axis motor to rotate 40000 steps, with a speed of 100 and a direction of 0, by calling the 'motorX' function with these parameter values.

4. Controls the Y-axis motor to rotate 40000 steps, with a speed of 100 and a direction of 0, by calling the 'motorY' function with these parameter values.

5. Resets the previous position values of X-axis and Y-axis motors to 0 by setting the values of 'X_prenum' and 'Y_prenum' to 0.