fet410_bt01.c

来自「110,120140,210,4 30,440 C语言,汇编源程序」· C语言 代码 · 共 42 行

//******************************************************************************
//  MSP-FET430P410 Demo - BasicTimer Toggle P5.1 using ISR, DCO SMCLK 
//
//  Description; This program will toggle P5.1 by xor'ing P5.1 inside of
//  a basic timer ISR. Default DCO used to clock basic timer. 
//
//		  MSP430F413
//             -----------------
//         /|\|              XIN|-  
//          | |                 |
//          --|RST          XOUT|-
//            |                 |
//            |             P5.1|-->LED
//
//  M.Buccini
//  Texas Instruments, Inc
//  October 2003
//  Built with IAR Embedded Workbench Version: 1.26B
//  Janaury 2004
//  Updated for IAR Embedded Workbench Version: 2.21B
//******************************************************************************

#include  <msp430x41x.h>

void main(void)
{ 
  WDTCTL = WDTPW + WDTHOLD;             // Stop WDT
  IE2 |= BTIE;                          // Enable BT interrupt
  BTCTL = BTSSEL+BTIP2+BTIP1+BTIP0;      
  P5DIR |= 0x02;                        // Set P5.1 to output direction

  _BIS_SR(LPM0_bits + GIE);             // Enter LPM0 w/ interrupt
}

// Basic Timer interrupt service routine
#pragma vector=BASICTIMER_VECTOR
__interrupt void basic_timer(void)
{
  P5OUT ^= 0x02;                        // Toggle P5.1 using exclusive-OR
}