/* Read switches and use the data to set LEDs on EduPad
 *
 * The four LEDs are:
 * LED3 - P2.4
 * LED2 - P2.5
 * LED1 - P3.3
 * LED0 - P3.2
 * The four switches are:
 * SW2  - P4.4
 * SW3  - P4.2
 * SW4  - P4.0
 * SW5  - P6.1
 *
 * Built and tested with MSP432P401R Rev. C, Keil MDK-ARM v5.24a and MSP432P4xx_DFP v3.1.0
 */

#include "msp.h"

int main(void) {
    P2->DIR |= 0x30;    /* P2.5, P2.4 set as output */
    P3->DIR |= 0xC;     /* P3.3, P3.2 set as output */
    P6->DIR &= ~2;      /* P6.1 set as input */
    P4->DIR &= ~0x15;   /* P4.4, P4.2, P4.0 input */

    while (1) {
        if (P4->IN & 0x10)
            P2->OUT |= 0x10;
        else
            P2->OUT &= ~0x10;
        
        if (P4->IN & 4)
            P2->OUT |= 0x20;
        else
            P2->OUT &= ~0x20;
        
        if (P4->IN & 1)
            P3->OUT |= 8;
        else
            P3->OUT &= ~8;
        
        if (P6->IN & 2)
            P3->OUT |= 4;
        else
            P3->OUT &= ~4;
    }
}