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-rw-r--r--HW3.X/strap012_hw3prob1.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/HW3.X/strap012_hw3prob1.c b/HW3.X/strap012_hw3prob1.c
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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++;
+ }
+}