Intial code push

Telem_Debug/Debug1/main.c

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+#include <msp430.h> 
+
+/*
+ * main.c
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <msp430x54xa.h>
+#include <ctype.h>
+#include <string.h>
+#include <math.h>
+#include <float.h>
+
+#include "main.h"
+
+// General Variables
+volatile unsigned char status_flag = FALSE;		//status flag set on timer B
+
+// CAN Communication Variables
+volatile unsigned char cancomm_flag = FALSE;	//used for CAN transmission timing
+volatile unsigned char send_can = FALSE;	//used for CAN transmission timing
+volatile unsigned char rcv_can = FALSE;	//used for CAN transmission timing
+volatile unsigned char can_full = FALSE;	//used for CAN transmission status
+volatile unsigned char ac_charge_mode = FALSE;	//used for CAN transmission
+volatile unsigned char dc_charge_mode = FALSE;	//used for CAN transmission
+volatile unsigned char charge_mode = 0x00;	//used for CAN transmission
+
+int main(void) {
+    WDTCTL = WDTPW | WDTHOLD;	// Stop watchdog timer
+	_DINT();     		    					//disables interrupts
+
+	clock_init();								//Configure HF and LF clocks
+	timerB_init();								//init timer B
+
+
+	P8DIR |= BIT3;                            // P1.0 output
+    P8DIR |= BIT4;                            // P1.0 output
+    P8DIR |= BIT5;                            // P1.0 output
+    P8DIR |= BIT6;                            // P1.0 output
+    P8OUT &= ~BIT3;                          // Toggle P1.0
+    P8OUT &= ~BIT4;                          // Toggle P1.0
+    P8OUT &= ~BIT5;                          // Toggle P1.0
+    P8OUT &= ~BIT6;                          // Toggle P1.0
+
+	_EINT(); 	//enable global interrupts
+
+    while(1)
+    {
+    	if(status_flag){
+    		status_flag = FALSE;
+    		P8OUT ^= BIT3;                          // Toggle P1.0
+    		P8OUT ^= BIT6;                          // Toggle P1.0
+    	}
+
+      // __delay_cycles(100000);                  // Delay
+    }
+
+	return 0;
+}
+
+/*
+* Initialise Timer B
+*	- Provides timer tick timebase at 100 Hz
+*/
+void timerB_init( void )
+{
+  TBCTL = CNTL_0 | TBSSEL_1 | ID_3 | TBCLR;		// ACLK/8, clear TBR
+  TBCCR0 = (ACLK_RATE/8/TICK_RATE);				// Set timer to count to this value = TICK_RATE overflow
+  TBCCTL0 = CCIE;								// Enable CCR0 interrrupt
+  TBCTL |= MC_1;								// Set timer to 'up' count mode
+}
+
+/*
+* Timer B CCR0 Interrupt Service Routine
+*	- Interrupts on Timer B CCR0 match at 10Hz
+*	- Sets Time_Flag variable
+*/
+/*
+* GNU interropt symantics
+* interrupt(TIMERB0_VECTOR) timer_b0(void)
+*/
+#pragma vector = TIMERB0_VECTOR
+__interrupt void timer_b0(void)
+{
+	static unsigned int status_count = TELEM_STATUS_COUNT;
+	static unsigned int cancomm_count = CAN_COMMS_COUNT;
+
+	// Primary System Heartbeat
+	status_count--;
+    if( status_count == 0 )
+    {
+    	status_count = TELEM_STATUS_COUNT;
+    	status_flag = TRUE;
+    }
+
+	// Periodic CAN Satus Transmission
+    if(send_can) cancomm_count--;
+    if( cancomm_count == 0 )
+    {
+        cancomm_count = CAN_COMMS_COUNT;
+        cancomm_flag = TRUE;
+    }
+}
+