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#include <xc.h>
// PIC24FJ64GA002 Configuration Bit Settings
// CW1: FLASH CONFIGURATION WORD 1 (see PIC24 Family Reference Manual 24.1)
#pragma config ICS = PGx1 // Comm Channel Select (Emulator EMUC1/EMUD1 pins are shared with PGC1/PGD1)
#pragma config FWDTEN = OFF // Watchdog Timer Enable (Watchdog Timer is disabled)
#pragma config GWRP = OFF // General Code Segment Write Protect (Writes to program memory are allowed)
#pragma config GCP = OFF // General Code Segment Code Protect (Code protection is disabled)
#pragma config JTAGEN = OFF // JTAG Port Enable (JTAG port is disabled)
// CW2: FLASH CONFIGURATION WORD 2 (see PIC24 Family Reference Manual 24.1)
#pragma config POSCMOD = NONE // Primary Oscillator Select (Primary oscillator disabled.
// Primary Oscillator refers to an external osc connected to the OSC1 and OSC2 pins)
#pragma config I2C1SEL = PRI // I2C1 Pin Location Select (Use default SCL1/SDA1 pins)
#pragma config IOL1WAY = OFF // IOLOCK Protection (IOLOCK may be changed via unlocking seq)
#pragma config OSCIOFNC = ON // OSC2/CLKO/RC15 functions as port I/O (RC15)
#pragma config FCKSM = CSECME // Clock Switching and Monitor (Clock switching is enabled,
// Fail-Safe Clock Monitor is enabled)
#pragma config FNOSC = FRCPLL // Oscillator Select (Fast RC Oscillator with PLL module (FRCPLL))
volatile unsigned long int msecs = 0;
void __attribute__((__interrupt__,__auto_psv__)) _T1Interrupt(void)
{
IFS0bits.T1IF = 0;
msecs++;
}
void setup(void)
{
CLKDIVbits.RCDIV = 0; // make 16MHz
T1CON = 0;
PR1 = 0xFFFF;
IFS0bits.T1IF = 0;
IPC0bits.T1IP = 3;
/* enable Timer 1 interrupt */
IEC0bits.T1IE = 1;
T1CONbits.TON = 1;
}
int main(void)
{
unsigned long int count = 0;
setup();
while (1) {
count++;
}
}
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