例程供参考：
#include <msp430x14x.h>
static unsigned int results[4]; // Needs to be global in this
// example. Otherwise, the compiler
// removes it because it is not used
// for anything.
void main(void)
{
WDTCTL = WDTPW+WDTHOLD; // Stop watchdog timer
P6SEL = 0x0F; // Enable A/D channel inputs
ADC12CTL0 = ADC12ON+MSC+SHT0_2; // Turn on ADC12, set sampling time
ADC12CTL1 = SHP+CONSEQ_1; // Use sampling timer, single seq
ADC12MCTL0 = INCH_0; // ref+=AVcc, channel = A0
ADC12MCTL1 = INCH_1; // ref+=AVcc, channel = A1
ADC12MCTL2 = INCH_2; // ref+=AVcc, channel = A2
ADC12MCTL3 = INCH_3+EOS; // ref+=AVcc, channel = A3, end seq
ADC12IE = 0x08; // Enable ADC12IFG.3
ADC12CTL0 |= ENC; // Enable conversions
while(1)
{
ADC12CTL0 |= ADC12SC; // Start conversion
_BIS_SR(LPM0_bits + GIE); // Enter LPM0, Enable interrupts
}
}
__interrupt void ADC_ISR (void);
ADC12_ISR(ADC_ISR)
__interrupt void ADC_ISR (void)
{
results[0] = ADC12MEM0; // Move results, IFG is cleared
results[1] = ADC12MEM1; // Move results, IFG is cleared
results[2] = ADC12MEM2; // Move results, IFG is cleared
results[3] = ADC12MEM3; // Move results, IFG is cleared
_BIC_SR_IRQ(LPM0_bits); // Clear LPM0, SET BREAKPOINT HERE
}
|
楼主
