Hello, how could reduce consumption msp430g2553? I use the following code:
// Timer example with Low Power Mode
#include <msp430.h>
#define ONE_SECOND 511
void main(void) {
WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer
P1DIR |= BIT0; // Set P1.0 to output direction
P1OUT |= BIT3;
P1REN |= BIT3;
P1IE |= BIT3; // P1.3 interrupt enabled
P1IES |= BIT3; // P1.3 Hi/lo edge
P1IFG &= BIT3; // P1.3 IFG cleared
P2DIR ^= P2DIR;
P2OUT ^= P2OUT;
P2REN ^= P2REN;
// Set up 32768Hz external crystal
BCSCTL1 |= DIVA_3; // divide by 8
BCSCTL3 |= XCAP_3; // select 12pF caps
// initialize Timer0_A
TA0CCR0 = 5 * ONE_SECOND; // set up terminal count for 10s
TA0CTL = TASSEL_1 + ID_3 + MC_1; // configure and start timer
// enable interrupts
TA0CCTL0 |= 0x0010; // set CCIE bit
__bis_SR_register(LPM3_bits + GIE); // set GIE anf LPM3 low power mode in SR
// while (1){};
}
#pragma vector = TIMER0_A0_VECTOR
__interrupt void myTimerISR(void) {
TA0CCR0 = 5*ONE_SECOND;
P1OUT ^= BIT0;
__delay_cycles(100000); // flash LED1
P1OUT ^= 0x01;
}
#pragma vector=PORT1_VECTOR
__interrupt void Port_1(void) { //INTERRUPCION CAMBIO SELECTOR
P1OUT ^= BIT0; // P1.0 = toggle
P1IFG &= ~BIT3; // P1.3 IFG cleared
}
With this code consumes approximately 110uA.
