//******************************************************************************
// Display_Circle.c
//
// Re-coded completely for CCS v5.4, Launch Pad and Capacitive Booster Pack
//		by Dorin Patru October 2013
//******************************************************************************

#include <msp430g2553.h>

unsigned int speed = 0x7FFF; // NOTE: Same delay count as ASM version
							 //       Why does it operate slower?

void delay(void); // Function prototype for delay subroutine

int main(void){
	unsigned int i;

	WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer

	P1DIR &= ~0xFF;	// Equivalent to BIC.B #0xFF,&P1DIR
	P1DIR |= 0xF8;	// Equivalent to BIS.B #0xF8,&P1DIR

	while(1){
		P1OUT &= ~0xF8;		// Display LEDs 4-1
		P1OUT |= 0x80;		//
		delay();			//
		P1OUT &= ~0x80;		//
		P1OUT |= 0x40;		//
		delay();			//
		P1OUT &= ~0x40;		//
		P1OUT |= 0x20;		//
		delay();			//
		P1OUT &= ~0x20;		//
		P1OUT |= 0x10;		//
		delay();			//
		P1OUT &= ~0x10;		//

		P1OUT &= ~0xF8;		// Display loop for LEDs 5-8
		P1OUT |= 0xF8;		//
		for (i=4; i<8; i++)
		{
			P1OUT &= ~(1 << i); // () = 2^i
			delay();
			P1OUT |= (1 << i);
		}
		delay(); // call delay subroutine
	}
}

void delay(void){
	unsigned int j;
	j = speed;
	j--;
	while(j > 0){	// software delay
		j--;
		j--;
		}
}