msp430x11x1_1.c

MSP430样例程序

//******************************************************************************
//  MSP430x11x1 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
//
//                MSP430F1121
//             -----------------
//         /|\|              XIN|-
//          | |                 |
//          --|RST          XOUT|-
//            |                 |
//            |             P1.0|-->LED
//
//  M. Buccini / Z. Albus
//  Texas Instruments Inc.
//  May 2005
//  Built with Code Composer Essentials Version: 1.0
//*****************************************************************************

#include  <msp430x11x1.h>

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

  for (;;)
  {
    unsigned int i;

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

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