Question

Q2. Answer the following questions about the program.

Describe the purpose of the ports and pins being used in the above example.
Describe the effect of changing PinPull_Up to PinPull_None
Describe the effect of changing PinPull_Up to PinPull_Down
Do we need PinDriveStrength_High? Carefully examine the LED board to help in answering this.
Find where Led::setOutput() method is declared and determine the default parameters used if no actual parameters are specified. A little bit tricky! Hint: If you move the cursor to a method and then press F3 an editor window will open at the method declaration.
Find where Switch::setInput() method is declared and determine the default parameters used if no actual parameters are specified. Also a little bit tricky!
Find where GpioC<...> is declared and determine the default template parameters. Which defaults have been used in the example?

THE CODE IS BELOW:

#include "hardware.h"

using namespace USBDM;

using Switch = GpioC<0, ActiveLow>;

using Led     = GpioC<1, ActiveHigh>;

using RedLed = GpioC<3, ActiveLow>;

using BlueLed = GpioA<2, ActiveLow>;

int main() {

   Led::setOutput(

         PinDriveStrength_High,

         PinDriveMode_PushPull,

         PinSlewRate_Fast);

   RedLed::setOutput(

               PinDriveStrength_High,

               PinDriveMode_PushPull,

               PinSlewRate_Slow);

   BlueLed::setOutput(

               PinDriveStrength_High,

               PinDriveMode_PushPull,

               PinSlewRate_Slow);

   Switch::setInput(

         PinPull_Up,

         PinAction_None,

         PinFilter_None);

   for(;;) {

      bool switchValue = Switch::read();

      console.write("Switch is ").writeln(switchValue);

      Led::write(switchValue);

      RedLed::write(!switchValue);

      BlueLed::write(switchValue);

   }

   return 0;

}

Answer 1

1- As the Pins are been set on which they will set the On and Off function as in code we set the pins to do High and Low

2-Pin pull Up will pass the current and it is been the state of ON while the Pin Pull None will be NOTHING as there is only ON button

3- Pin pull Up will pass the current and it is been the state of ON while the Pin Pull Down will be zero as it is the state of OFF

4-Yes it is important as to keep the strength high as we will also be using the resistor.

5- The Led Output() has the default parameters pins drive rate ,strength rate and slew rate.

6- AS it is been called through the library of switch and the default paramerters that are been passed are been listed below

         PinAction_None,

         PinFilter_None);

7- As it is been Red led out put result and active low are been passed as parameter

PLEASE GIVE A THUMBS UP!!!!!!!!1