侧A7和A6的电压，然后分别读出值

1万 · 2015-12-15 21:47

msp430g2553，有ADC10，要侧A7和A6的电压，然后分别读出值，单独测都行，两个一起测的话要怎么设置？

1万 · 2015-12-15 21:47

可将ADC10设置为Single Sequence 模式

1万 · 2015-12-15 21:47

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)
}