TMS320F2800137: ADC与外部中断冲突

yang ke gou

Prodigy 30 points

Part Number: TMS320F2800137

在进行外设配置时，将ADC和外部中断同时配置，发现外部中断不能被触发，当ADC不使能的时候，外部中断就可以触发，就是按照C2000里面的例程进行结合，不知道啥原因，还希望支持一下，外部中断选择端口34，采样采用9,15,23引脚

2 年多前

0 Yale Li 李耀先 2 年多前

TI__Guru 65745 points

ADC中断使用的是哪个？外部中断使用的是XINT几？ADC中断的触发频率是多少？外部中断的触发频率是多少？

退出中断函数的时候有没有清PIEACK？

例程具体是怎么结合的？

0 yang ke gou 2 年多前

Prodigy 30 points

这个好像没法添加压缩包，我截图看一下吧

GPIO_setDirectionMode(17, GPIO_DIR_MODE_IN); // input
GPIO_setQualificationMode(17, GPIO_QUAL_SYNC);
GPIO_setDirectionMode(17, GPIO_DIR_MODE_IN);
GPIO_setInterruptPin(17, GPIO_INT_XINT1);
GPIO_setInterruptType(GPIO_INT_XINT1, GPIO_INT_TYPE_FALLING_EDGE);
GPIO_enableInterrupt(GPIO_INT_XINT1);

EALLOW;
Adc_GPIO_Init(PVFirstSimpleCurrent_PIN,PVFirstSimpleCurrent_PAD);
Adc_GPIO_Init(PVFirstSimpleVoltage_PIN,PVFirstSimpleVoltage_PAD);
Adc_GPIO_Init(InverterSimpleVoltage_PIN,InverterSimpleVoltage_PAD);

// Adc_GPIO_Init(GPIO_231_GPIO231,231);
// Adc_GPIO_Init(GPIO_232_GPIO232,232);
// Adc_GPIO_Init(GPIO_224_GPIO224,224);
EDIS;


ASYSCTL_init();
EALLOW;
ADC_setOffsetTrimAll(ADC_REFERENCE_INTERNAL,ADC_REFERENCE_3_3V);

ADC_setPrescaler(myADC0_BASE, ADC_CLK_DIV_2_0);

ADC_setInterruptPulseMode(myADC0_BASE, ADC_PULSE_END_OF_CONV);

ADC_enableConverter(myADC0_BASE);

DEVICE_DELAY_US(5000);

ADC_disableBurstMode(myADC0_BASE);

ADC_setSOCPriority(myADC0_BASE, ADC_PRI_ALL_ROUND_ROBIN);

ADC_setupSOC(myADC0_BASE, ADC_SOC_NUMBER0, ADC_TRIGGER_EPWM1_SOCA, ADC_CH_ADCIN0, 9U);
ADC_setInterruptSOCTrigger(myADC0_BASE, ADC_SOC_NUMBER0, ADC_INT_SOC_TRIGGER_NONE);
///PVVoltage
ADC_setupSOC(myADC0_BASE, ADC_SOC_NUMBER1, ADC_TRIGGER_EPWM1_SOCA, ADC_CH_ADCIN4, 9U);
ADC_setInterruptSOCTrigger(myADC0_BASE, ADC_SOC_NUMBER1, ADC_INT_SOC_TRIGGER_NONE);
//current
ADC_setupSOC(myADC0_BASE, ADC_SOC_NUMBER2, ADC_TRIGGER_EPWM1_SOCA, ADC_CH_ADCIN12, 9U);
ADC_setInterruptSOCTrigger(myADC0_BASE, ADC_SOC_NUMBER2, ADC_INT_SOC_TRIGGER_NONE);
//inverterVoltage
ADC_setInterruptSource(myADC0_BASE, ADC_INT_NUMBER1, ADC_SOC_NUMBER2);
ADC_clearInterruptStatus(myADC0_BASE, ADC_INT_NUMBER1);
ADC_disableContinuousMode(myADC0_BASE, ADC_INT_NUMBER1);
ADC_enableInterrupt(myADC0_BASE, ADC_INT_NUMBER1);
EDIS;

EALLOW;
Interrupt_register(INT_XINT1, &xint1ISR);
Interrupt_register(INT_ADCA1, &adcA1ISR);
Interrupt_enable(INT_XINT1);
Interrupt_enable(INT_ADCA1);
SysCtl_enablePeripheral(SYSCTL_PERIPH_CLK_TBCLKSYNC);
EDIS;

上面这部分是初始化的程序

__interrupt void adcA1ISR(void)
{
//
// Store results
//
EINT;

adcAResult0 = ADC_readResult(ADCARESULT_BASE, ADC_SOC_NUMBER0);
adcAResult1 = ADC_readResult(ADCARESULT_BASE, ADC_SOC_NUMBER1);
adcAResult2 = ADC_readResult(ADCARESULT_BASE, ADC_SOC_NUMBER2);
// Clear the interrupt flag
//
ADC_clearInterruptStatus(ADCA_BASE, ADC_INT_NUMBER1);

//
// Check if overflow has occurred
//
if(true == ADC_getInterruptOverflowStatus(ADCA_BASE, ADC_INT_NUMBER1))
{
ADC_clearInterruptOverflowStatus(ADCA_BASE, ADC_INT_NUMBER1);
ADC_clearInterruptStatus(ADCA_BASE, ADC_INT_NUMBER1);
}

//
// Acknowledge the interrupt
//
Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP1);
}

interrupt void xint1ISR(void)
{
// GPIO_writePin(40, 0); // GPIO16 is lowered
// DisablePWMOut();
// InverterStop();
keyenable = 0;
//
// Acknowledge this interrupt to get more from group 1
//
Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP1);
}

下面这部分是中断程序

应该复制到主函数可以直接运行