EE302 - Lab 01

#include <xc.h> #ifndef _XTAL_FREQ // Unless already defined assume 4MHz system frequency // This definition is required to calibrate __delay_us() and __delay_ms() #define _XTAL_FREQ 4000000 #endif //Configuration Bits #pragma config FOSC = XT // Oscillator Selection bits (XT oscillator) #pragma config WDTE = OFF // Watchdog Timer Enable bit (WDT disabled) #pragma config PWRTE = OFF // Power-up Timer Enable bit (PWRT disabled) #pragma config BOREN = OFF // Brown-out Reset Enable bit (BOR disabled) #pragma config LVP = OFF // Low-Voltage (Single-Supply) In-Circuit Serial Programming Enable bit (RB3 is digital I/O, HV on MCLR must be used for programming) #pragma config CPD = OFF // Data EEPROM Memory Code Protection bit (Data EEPROM code protection off) #pragma config WRT = OFF // Flash Program Memory Write Enable bits (Write protection off; all program memory may be written to by EECON control) #pragma config CP = OFF // Flash Program Memory Code Protection bit (Code protection off) // #pragma config statements should precede project file includes. // Use project enums instead of #define for ON and OFF. // #pragma config statements should precede project file includes. // Use project enums instead of #define for ON and OFF. #define BUTTON1 RB0 #define BUTTON2 RB1 #define BUTTON3 RB2 #define LED1 RC0 #define LED2 RC1 #define SPK RC2 #define PRESSED 0 #define OPEN 1 #define ON 1 #define OFF 0 #define S_ON 0 #define S_OFF 1 void init() { PORTB = 0x00; TRISB = 0x07; PORTC = 0x04; TRISC = 0x00; } void solve() { if (BUTTON1 == PRESSED && BUTTON2 == OPEN && BUTTON3 == OPEN) { LED1 = OFF; LED2 = ON; SPK = S_ON; __delay_us(250); //250us delay } else if (BUTTON1 == PRESSED) { LED1 = ON; LED2 = OFF; SPK = S_OFF; __delay_us(250); //250us delay } else { LED1 = ON; LED2 = ON; SPK = S_ON; __delay_us(250); //250us delay } LED1 = OFF; LED2 = OFF; SPK = S_OFF; __delay_us(250); //250us delay } void main() { init(); while (1) { solve(); } }