LPM3
//*****************************************************************************
// MSP-FET430P140 Demo - Basic Clock, LPM3 Using WDT ISR, 32kHz ACLK
// Description: This program operates MSP430 normally in LPM3, pulsing P3.4
// at 4 second intervals. WDT ISR used to wake-up system. All I/O configured
// as low outputs to eliminate floating inputs. Current consumption does
// increase when LED is powered on P3.4. Demo for measuring LPM3 current.
// ACLK= LFXT1/4= 32768/4, MCLK= SMCLK= default DCO
// //* External watch crystal on XIN XOUT is required for ACLK *//
//
// MSP430F149
// ---------------
// /|\| XIN|-
// | | | 32kHz
// --|RST XOUT|-
// | |
// | P3.5|-->LED
//
// Dasheng
// LiTian Electronic Inc.
// Feb 2008
// Built with IAR Embedded Workbench Version: 3.42A
//
******************************************************************************
#include <msp430x14x.h>
#include "BoardConfig.h"
void main(void)
{
BoardConfig(0xb8);
BCSCTL1 |= DIVA_2; // ACLK/4
WDTCTL = WDT_ADLY_1000; // WDT 1s/4 interval timer
IE1 |= WDTIE; // Enable WDT interrupt
P1DIR = 0xFF; // All P1.x outputs
P1OUT = 0; // All P1.x reset
P2DIR = 0xFF; // All P2.x outputs
P2OUT = 0; // All P2.x reset
P3DIR = 0xFF; // All P3.x outputs
P3OUT = 0x30; // All P3.x reset
P4DIR = 0xFF; // All P4.x outputs
P4OUT = 0; // All P4.x reset