fet210_1.c

110,120140,210,4 30,440 C语言,汇编源程序

//*******************************************************************************
//  MSP-FET430x210 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
//
//                MSP430F2131
//             -----------------
//         /|\|              XIN|-  
//          | |                 |
//          --|RST          XOUT|-
//            |                 |
//            |             P1.0|-->LED
//
//  M.Buccini
//  Texas Instruments, Inc
//  October 2004
//  Built with IAR Embedded Workbench Version: 2.20A
//******************************************************************************

#include  <msp430x21x1.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);
  }
}