#include <msp430f5529.h>
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // 关闭看门狗
ADC12CTL0 = ADC12SHT02 + ADC12ON; // 选择采样周期,打开ADC12模块
ADC12CTL1 = ADC12SHP; // 使用采样定时器作为采样触发信号
ADC12IE = 0x01; // 使能ADC采样中断
ADC12CTL0 |= ADC12ENC; // 置位ADC12ENC控制位
P6SEL |= 0x01; // 将P6.0引脚设为ADC输入功能
P1DIR |= 0x01; // 将P1.0引脚设为输出功能
while (1)
{
ADC12CTL0 |= ADC12SC; // 启动采样转换
__bis_SR_register(LPM0_bits + GIE); // 进入LPM0并启用全局中断
}
}
#pragma vector = ADC12_VECTOR
__interrupt void ADC12_ISR(void)
{
switch(__even_in_range(ADC12IV,34))
{
case 0: break; // Vector 0: 无中断
case 2: break; // Vector 2: ADC溢出中断
case 4: break; // Vector 4: ADC转换时间溢出中断
case 6: // Vector 6: ADC12IFG0
if (ADC12MEM0 >= 0x3ff) // ADC12MEM = A0 > 0.未知AVcc?
P1OUT &= ~BIT0; // P1.0 = 1
else
P1OUT |= BIT0; // P1.0 = 0
case 8: break; // Vector 8: ADC12IFG1
case 10: break; // Vector 10: ADC12IFG2
case 12: break; // Vector 12: ADC12IFG3
case 14: break; // Vector 14: ADC12IFG4
case 16: break; // Vector 16: ADC12IFG5
case 18: break; // Vector 18: ADC12IFG6
case 20: break; // Vector 20: ADC12IFG7
case 22: break; // Vector 22: ADC12IFG8
case 24: break; // Vector 24: ADC12IFG9
case 26: break; // Vector 26: ADC12IFG10
case 28: break; // Vector 28: ADC12IFG11
case 30: break; // Vector 30: ADC12IFG12
case 32: break; // Vector 32: ADC12IFG13
case 34: break; // Vector 34: ADC12IFG14
default: break;
}
}
|
