MSP430闪灯例程

只看该作者 · 2016-2-29 22:49

//*******************************************************************************
//  MSP-FET430P140 Demo - Software Toggle P1.0
//
//  Description: Toggle P1.0 by xor'ing P1.0 inside of a software loop.
//  ACLK= n/a, MCLK= SMCLK= default DCO ~800k
//
//             MSP430F149
//          -----------------
//       /|\|             XIN|-
//       | |                |
//       --|RST       XOUT|-
//          |                |
//          |          P1.0|-->LED
//
//  M. Buccini
//  Texas Instruments Inc.
//  Feb 2005
//  Built with IAR Embedded Workbench Version: 3.21A
//******************************************************************************

#include  <msp430x14x.h>

void main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                // Stop watchdog timer
  P1DIR |= 0x01;                         // Set P1.0 to output direction

  for (;;)
  {
volatile unsigned int i;

P1OUT ^= 0x01;                         // Toggle P1.0 using exclusive-OR

i = 50000;                            // Delay
do (i--);
while (i != 0);
  }
}