From 5178d116044f64b409b17ef026be88b44a00e84d Mon Sep 17 00:00:00 2001
From: RossTheRoss <msattr@gmail.com>
Date: Sat, 21 Mar 2020 14:42:49 -0500
Subject: Do HW3

---
 HW3.X/strap012_hw3prob1.c | 57 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 HW3.X/strap012_hw3prob1.c

(limited to 'HW3.X/strap012_hw3prob1.c')

diff --git a/HW3.X/strap012_hw3prob1.c b/HW3.X/strap012_hw3prob1.c
new file mode 100644
index 0000000..709bb00
--- /dev/null
+++ b/HW3.X/strap012_hw3prob1.c
@@ -0,0 +1,57 @@
+#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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