Hello everybody,
I am a beginner with MSP430, and I want to do an object who measure water flow, and display it on a LCD screen. I developed it with an arduino platform: I use hardware counter of the atmel chip.
But, I want to do this object with low power consumption (with battery), so I have started to develop it with the msp 430 launchpad.
|
#include <msp430g2553.h>
void main(void) { WDTCTL = WDTPW + WDTHOLD; // Stop watchdog timer TA0CCR0 = 0xFFFF; // Count limit (16 bit) P1SEL |= BIT0; // Use P1.0 as TimerA input P1SEL2 &= ~BIT0; // P1DIR &= ~BIT0; // P1OUT &= ~BIT0; // Enable pull down resistor to reduce stray counts P1REN |= BIT0; TA0CCTL0 = 0x10; // Enable counter interrupts, bit 4=1 TA0CTL |= TACLR; TA0CTL |= TASSEL_0 + MC_1; _BIS_SR(LPM0_bits + GIE); // LPM0 (low power mode) with interrupts enabled }
#pragma vector=TIMER0_A0_VECTOR __interrupt void Timer0_A0 (void) { // Timer0 A0 interrupt service routine
//P1OUT ^= BIT0; // Toggle red LED } |
My program work, but I’m not able to select another pin, It work only with the P1.0 pin. Is it possible to select another input? Is my program is good?
I want to print it on a small screen, with low power, any idea for it?
Thanks you in advance, sorry for my bad English
Kind regards
