本帖最后由 简单生活 于 2012-1-30 18:26 编辑
可将ADC10设置为Single Sequence 模式.
如下为对A2,A1,A0连续读取的例子,可参考修改.
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
ADC10CTL1 = INCH_3 + CONSEQ_1; // A3/A2/A1, single sequence
ADC10CTL0 = ADC10SHT_2 + MSC + ADC10ON + ADC10IE;
ADC10DTC1 = 0x03; // 3 conversions
ADC10AE0 |= 0x0E; // P1.3,2,1 ADC10 option select
P1DIR |= 0x01; // Set P1.0 output
for (;;)
{
ADC10CTL0 &= ~ENC;
while (ADC10CTL1 & BUSY); // Wait if ADC10 core is active
ADC10SA = 0x200; // Data buffer start
P1OUT |= 0x01; // P1.0 = 1
ADC10CTL0 |= ENC + ADC10SC; // Sampling and conversion start
__bis_SR_register(CPUOFF + GIE); // LPM0, ADC10_ISR will force exit
P1OUT &= ~0x01; // P1.0 = 0
}
}
// ADC10 interrupt service routine
#pragma vector=ADC10_VECTOR
__interrupt void ADC10_ISR(void)
{
__bic_SR_register_on_exit(CPUOFF); // Clear CPUOFF bit from 0(SR)
}
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