中断一次也进不去

只看该作者 · 2023-1-8 19:36

void SCA60C_init(void)
{

ADC12CTL0 = ADC12SHT02 + ADC12ON; // 打开ADC12设置采样间隔
ADC12CTL1 = ADC12SHP+ADC12CONSEQ_1; // 采样保持出发信号选择采样定时器序列通道单次转换
ADC12MCTL0 = ADC12INCH_6; // 模拟输入通道选择通道A6
ADC12MCTL1 = ADC12INCH_7+ADC12EOS; // 模拟输入通道选择通道A7
ADC12CTL0 |= ADC12ENC; // 使能转换
ADC_PORT_SEL |= 0xff; //ADC选择 P6.6 P6.7作为输入（A6）（A7）
ADC12IE = 0x08;
}
uint16_t *SCA60C_getValue(void)
{
ADC12CTL0 |= ADC12SC; // Start sampling/conversion开始采样转换
__bis_SR_register(LPM4_bits+GIE); // ADC12_ISR will force exit进入LPM4并全局中断调试到这里就发现下一步没有进入中断而是直接继续执行
///////省略若干代码}

////中断服务程序
#pragma vector = ADC12_VECTOR
__interrupt void ADC12_ISR(void)
{
switch (__even_in_range(ADC12IV, ADC12IV_ADC12IFG15))
{
………………
case ADC12IV_ADC12IFG3:
positionData[0] = ADC12MEM0; // 读取转换结果
positionData[1] = ADC12MEM1; // 读取转换结果
__bic_SR_register_on_exit(LPM4_bits); // Exit active CPU退出低功耗唤醒CPU
break;
…………
default:
break;
}
}

只看该作者 · 2023-1-8 19:37

中断向量指向错误了把，你只用了ad0和ad1，应该进ifg1

只看该作者 · 2023-1-8 19:41

试一下序列通道多次转换吧

只看该作者 · 2023-1-8 19:41

中断是可以进去，因为你可以看到数据采集的结果已经存入定义的变量中了，但是问题在于中断中的退出低功耗函数没有被执行，CPUOFF标志位一直=1

只看该作者 · 2023-1-8 19:47

ADC10CTL0 / ADC10CTL1 后面的赋值把前面的覆盖了吧。

只看该作者 · 2023-1-8 19:48

ADC10CTL0 = ADC10ON + ADC10SHT_2 + MSC + ADC10IE; //打开内核,采样保持时间，中断允许

只看该作者 · 2023-1-8 19:54

ADC12MCTL1 = INCH_1+EOS; // ref+=AVcc, channel = A1, end seq.
ADC12IE = 0x02; // Enable ADC12IFG.1

只看该作者 · 2023-1-8 19:54

WDTCTL = WDTPW+WDTHOLD; // Stop watchdog timer
P6SEL = 0x0F; // Enable A/D channel inputs
ADC12CTL0 = ADC12ON+MSC+SHT0_8; // Turn on ADC12, extend sampling time
// to avoid overflow of results
ADC12CTL1 = SHP+CONSEQ_3; // Use sampling timer, repeated sequence
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
ADC12CTL0 |= ADC12SC; // Start conversion

只看该作者 · 2023-1-8 19:59

ADC10CTL0 = SREF_4 + REFON;

只看该作者 · 2023-1-8 19:59

DC的中断向量 #pragma vector=ADC12_VECTOR

只看该作者 · 2023-1-8 20:04

__interrupt void ADC12ISR (void)
{
static unsigned int index = 0;

A0results[index] = ADC12MEM0; // Move A0 results, IFG is cleared
A1results[index] = ADC12MEM1; // Move A1 results, IFG is cleared
A2results[index] = ADC12MEM2; // Move A2 results, IFG is cleared
A3results[index] = ADC12MEM3; // Move A3 results, IFG is cleared
index = (index+1)%Num_of_Results; // Increment results index, modulo; Set Breakpoint here
}

只看该作者 · 2023-1-8 20:05

ADC12CTL0 = ADC12SHT02 + ADC12ON;       // Sampling time, ADC12 on
ADC12CTL1 = ADC12SHP;                   // Use sampling timer
ADC12IE = 0x01;                         // Enable interrupt
ADC12CTL0 |= ADC12ENC;

ADC12CTL0 |= ADC12SC;                // Start sampling/conversion