MSP-EXP432P401R: MSP-EXP432P401R

Can you share what you already have and just what the problem is? We are hesitant with questions like this because we do not want to do your homework for you.

The thing is that you need to realize the function of toggling a GPIO and reading the input of a GPIO first.

am working on Write a program that will use switches S1 and S2 to control the color of the tri-color RGB LED on the TI MSP432 LaunchPad board.

The switches will change the color of the RGB LED;

S1 - RED

S2 - Green

S1 + S2 together - Blue

for S1; Red

/*
* This program to simulate a traffic light using switches,
*/

#include "msp.h"

int main(void) {
     P1->SEL1 &= ~2;     /* configure P1.1 as simple I/O */
     P1->SEL0 &= ~2;
     P1->DIR &= ~2;        /* P1.1 set as input */
     P1->REN |= 2;          /* P1.1pull resistor enabled */
     P1->OUT |= 2;          /* Pull up/down is selected by P1->OUT */

     P2->SEL1 &= ~1;           /* configure P2.0 as simple I/O */
     P2->SEL0 &= ~1;
     P2->DIR |= 1;                 /* P2.0 set as input */

     while (1) {
           if (P1->IN &2)     /* use switch 1 to control red LED */
           P2->OUT &= ~1;     /* turn off P2.0 red LED when SW is pressed */

     else
          P2->OUT |= 1;          /* turn on P2.0 red LED when SW is pressed */
     }
}

for S2: Green

/*
* This program to simulate a traffic light using switches,
*/

#include "msp.h"

int main(void) {
     P1->SEL1 &= ~BIT4;     /* configure P1.1 as simple I/O */
     P1->SEL0 &= ~BIT4;
     P1->DIR &= ~BIT4;        /* P1.1 set as input */
     P1->REN |= BIT4;          /* P1.1pull resistor enabled */ 
     P1->OUT |= BIT4;          /* Pull up/down is selected by P1->OUT */

     P2->SEL1 &= ~2;           /* configure P2.0 as simple I/O */
     P2->SEL0 &= ~2;
     P2->DIR |= 2;                 /* P2.0 set as input */

     while (1) {
           if (P1->IN &BIT4)     /* use switch 1 to control red LED */
           P2->OUT &= ~2;      /* turn off P2.0 red LED when SW is pressed */

     else
          P2->OUT |= 2;          /* turn on P2.0 red LED when SW is pressed */
     }
}

but I can`t figure out how to make S1 & S2 together to toggle the Blue LED