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#include <xc.h>
#include <libpic30.h>

// PIC24FJ128GA010 Configuration Bit Settings
// CONFIG2
#pragma config POSCMOD = XT           // XT Oscillator mode selected
#pragma config OSCIOFNC = ON          // OSC2/CLKO/RC15 as port I/O (RC15)
#pragma config FCKSM = CSDCMD         // Clock Switching and Monitor disabled
#pragma config FNOSC = PRI            // Primary Oscillator (XT, HS, EC)
#pragma config IESO = ON              // Int Ext Switch Over Mode enabled
// CONFIG1
#pragma config WDTPS = PS32768       // Watchdog Timer Postscaler (1:32,768)
#pragma config FWPSA = PR128         // WDT Prescaler (1:128)
#pragma config WINDIS = ON           // Watchdog Timer Window Mode disabled
#pragma config FWDTEN = OFF          // Watchdog Timer disabled
#pragma config ICS = PGx2            // Emulator/debugger uses EMUC2/EMUD2
#pragma config GWRP = OFF           // Writes to program memory allowed
#pragma config GCP = OFF            // Code protection is disabled
#pragma config JTAGEN = OFF        // JTAG port is disabled

int main(void) {
    unsigned int portValue;

    // Port A access
    AD1PCFG = 0xFFFF; // Set to digital I/O (not analog)
    TRISA = 0x0000;   // Set all port bits to be output

    while(1) {
        portValue = 0x55;
        LATA = portValue;          // Write to port latch

        // Delay value change
        __delay32(1500000); // Delay in instruction cycles

        portValue = 0xAA;
        LATA = portValue;          // Write to port latch
        __delay32(1500000); // Delay in instruction cycles
    }

    return 0;
}