start/stop running

src/inverter.c

@@ -8,6 +8,7 @@
 
 #include <stdint.h>
 #include <stdlib.h>
+#include <stdbool.h>
 #include <msp430g2452.h>
 #include <isr_compat.h>
 
@@ -71,25 +72,30 @@ ISR(TIMER0_A1, TA0_ISR_Comp) {
 	__enable_interrupt();
 }
 
-ISR(PORT1, PORT1_ISR) {
-	uint16_t p1Ifg = P1IFG;
-	if (p1Ifg & BIT3) {
-		// start
-		pulseWidthIdx = 0;
-		TA0CTL = MC_1 | ID_0 | TASSEL_0 | TACLR;
-	} else if (p1Ifg & BIT4) {
-		// stop
-		TA0CTL = MC_0;
+void inverterExec() {
+	static bool running = false;
+
+	if (P1IN & BIT3) {
+		if (! running) {
+			// start
+			pulseWidthIdx = 0;
+			TA0CTL = MC_1 | ID_0 | TASSEL_0 | TACLR;
+			running = true;
+		}
+	} else {
+		if (running) {
+			// stop
+			TA0CTL = MC_0;
+			running = false;
+		}
 	}
 }
 
 void inverterInit() {
 	// start, stop
 	// BIT3: start, BIT4: stop
-//	P1OUT &= (BIT3 | BIT4);
-//	P1DIR &= (BIT3 | BIT4);
-//	P1IES = BIT3;
-//	P1IE |= BIT3 | BIT4;
+	P1OUT &= (BIT3 | BIT4);
+	P1DIR &= (BIT3 | BIT4);
 
 	// bridge direction
 	P1OUT &= ~BIT2;
@@ -110,7 +116,8 @@ void inverterInit() {
 	P1DIR &= ~BIT0;
 	P1SEL |= BIT0;
 
-	TA0CTL = 		TA0CTL = MC_1 | ID_0 | TASSEL_0 | TACLR;
+	//TA0CTL = MC_1 | ID_0 | TASSEL_0 | TACLR;
+	TA0CTL = MC_0;
 
 	TA0CCTL0 = CCIE | OUTMOD_4;
 	TA0CCTL1 = CCIE;

src/inverter.h

@@ -11,6 +11,7 @@
 #include <stdint.h>
 
 void inverterInit();
+void inverterExec();
 void inverterSetFrequency(uint16_t f);
 
 #endif /* INVERTER_H_ */

src/main.c

@@ -31,6 +31,7 @@ int main() {
   inverterSetFrequency(50);
 
   while (1) {
+	  inverterExec();
   }
 }