Subversion Repositories openmsp430

#include "hardware.h"

#include "7seg.h"

/**

Delay function.

*/

void delay(unsigned int c, unsigned int d) {

  volatile int i, j;

  for (i = 0; i<c; i++) {

    for (j = 0; j<d; j++) {

      nop();

      nop();

    }

  }

}

/**

This one is executed onece a second. it counts seconds, minues, hours - hey

it shoule be a clock ;-)

it does not count days, but i think you'll get the idea.

*/

volatile int irq_counter, offset;

wakeup interrupt (WDT_VECTOR) INT_Watchdog(void) {

  irq_counter++;

  if (irq_counter == 300) {

    irq_counter = 0;

    offset = (offset+1) % 20;

  }

  DispStr  (offset, "OPENMSP430 IN ACTION    ");

}

/**

Main function with some blinking leds

*/

int main(void) {

  int i;

    int o = 0;

    irq_counter = 0;

    offset      = 0;

    WDTCTL = WDTPW | WDTHOLD;          // Disable watchdog timer

    P1OUT  = 0x00;                     // Port data output

    P2OUT  = 0x00;

    P1DIR  = 0x00;                     // Port direction register

    P2DIR  = 0x00;

    P3DIR  = 0xff;

    P1IES  = 0x00;                     // Port interrupt enable (0=dis 1=enabled)

    P2IES  = 0x00;

    P1IE   = 0x00;                     // Port interrupt Edge Select (0=pos 1=neg)

    P2IE   = 0x00;

    WDTCTL = WDTPW | WDTTMSEL | WDTCNTCL;// | WDTIS1  | WDTIS0 ;          // Configure watchdog interrupt

    IE1 |= 0x01;

    eint();                            //enable interrupts

    while (1) {                         // Main loop, never ends...

        for (i=0; i<8; i++, o++) {

            P3OUT = (1<<i) | (0x80>>(o&7));

            delay(0x0007, 0xffff);

        }

    }

}