Part Number: TMS320F280025C
Other Parts Discussed in Thread: C2000WARE, SYSCONFIG
Tool/software:
Hello.
I am using the temperature sensor on the TMS320F280025C.
My understanding is that the following program loops through the while statement until the AD conversion is complete, then exits the loop when the conversion is finished and starts the calculation.
However, when I debugged the program, it never exited the while loop.
Below is the function that uses the temperature sensor and the settings for the ADC portion in board.c.
Am I overlooking something?
Thank you in advance for your help.
function↓
int getThermalE(SSCMGParametar* aPara){
volatile uint16_t TempE_ADCResult = 0;
ADC_forceMultipleSOC(ADC_2_BASE, ADC_FORCE_SOC0);
while(ADC_getInterruptStatus(ADC_2_BASE, ADC_INT_NUMBER3) == false){
}
ADC_clearInterruptStatus(ADC_2_BASE, ADC_INT_NUMBER3);
TempE_ADCResult = ADC_readResult(ADC_2_RESULT_BASE, ADC_SOC_NUMBER0);
int16_t TempE = ADC_getTemperatureC(TempE_ADCResult, 3.3f);
if(true == ADC_getInterruptOverflowStatus(ADC_2_BASE, ADC_INT_NUMBER3))
{
ADC_clearInterruptOverflowStatus(ADC_2_BASE, ADC_INT_NUMBER3);
ADC_clearInterruptStatus(ADC_2_BASE, ADC_INT_NUMBER3);
}
return TempE;
}
board.c↓
void ADC_2_init(){
//
// ADC Initialization: Write ADC configurations and power up the ADC
//
// Set the analog voltage reference selection and ADC module's offset trims.
// This function sets the analog voltage reference to internal (with the reference voltage of 1.65V or 2.5V) or external for ADC
// which is same as ASysCtl APIs.
//
ADC_setVREF(ADC_2_BASE, ADC_REFERENCE_INTERNAL, ADC_REFERENCE_3_3V);
//
// Configures the analog-to-digital converter module prescaler.
//
ADC_setPrescaler(ADC_2_BASE, ADC_CLK_DIV_2_0);
//
// Sets the timing of the end-of-conversion pulse
//
ADC_setInterruptPulseMode(ADC_2_BASE, ADC_PULSE_END_OF_CONV);
//
// Powers up the analog-to-digital converter core.
//
ADC_enableConverter(ADC_2_BASE);
//
// Delay for 1ms to allow ADC time to power up
//
DEVICE_DELAY_US(5000);
//
// SOC Configuration: Setup ADC EPWM channel and trigger settings
//
// Disables SOC burst mode.
//
ADC_disableBurstMode(ADC_2_BASE);
//
// Sets the priority mode of the SOCs.
//
ADC_setSOCPriority(ADC_2_BASE, ADC_PRI_ALL_ROUND_ROBIN);
//
// Start of Conversion 0 Configuration
//
//
// Configures a start-of-conversion (SOC) in the ADC and its interrupt SOC trigger.
// SOC number : 0
// Trigger : ADC_TRIGGER_SW_ONLY
// Channel : ADC_CH_ADCIN12
// Sample Window : 8 SYSCLK cycles
// Interrupt Trigger: ADC_INT_SOC_TRIGGER_NONE
//
ADC_setupSOC(ADC_2_BASE, ADC_SOC_NUMBER0, ADC_TRIGGER_SW_ONLY, ADC_CH_ADCIN12, 8U);
ADC_setInterruptSOCTrigger(ADC_2_BASE, ADC_SOC_NUMBER0, ADC_INT_SOC_TRIGGER_NONE);
//
// Start of Conversion 1 Configuration
//
//
// Configures a start-of-conversion (SOC) in the ADC and its interrupt SOC trigger.
// SOC number : 1
// Trigger : ADC_TRIGGER_SW_ONLY
// Channel : ADC_CH_ADCIN2
// Sample Window : 8 SYSCLK cycles
// Interrupt Trigger: ADC_INT_SOC_TRIGGER_NONE
//
ADC_setupSOC(ADC_2_BASE, ADC_SOC_NUMBER1, ADC_TRIGGER_SW_ONLY, ADC_CH_ADCIN2, 8U);
ADC_setInterruptSOCTrigger(ADC_2_BASE, ADC_SOC_NUMBER1, ADC_INT_SOC_TRIGGER_NONE);
//
// Start of Conversion 2 Configuration
//
//
// Configures a start-of-conversion (SOC) in the ADC and its interrupt SOC trigger.
// SOC number : 2
// Trigger : ADC_TRIGGER_SW_ONLY
// Channel : ADC_CH_ADCIN4
// Sample Window : 8 SYSCLK cycles
// Interrupt Trigger: ADC_INT_SOC_TRIGGER_NONE
//
ADC_setupSOC(ADC_2_BASE, ADC_SOC_NUMBER2, ADC_TRIGGER_SW_ONLY, ADC_CH_ADCIN4, 8U);
ADC_setInterruptSOCTrigger(ADC_2_BASE, ADC_SOC_NUMBER2, ADC_INT_SOC_TRIGGER_NONE);
//
// Start of Conversion 3 Configuration
//
//
// Configures a start-of-conversion (SOC) in the ADC and its interrupt SOC trigger.
// SOC number : 3
// Trigger : ADC_TRIGGER_SW_ONLY
// Channel : ADC_CH_ADCIN6
// Sample Window : 8 SYSCLK cycles
// Interrupt Trigger: ADC_INT_SOC_TRIGGER_NONE
//
ADC_setupSOC(ADC_2_BASE, ADC_SOC_NUMBER3, ADC_TRIGGER_SW_ONLY, ADC_CH_ADCIN6, 8U);
ADC_setInterruptSOCTrigger(ADC_2_BASE, ADC_SOC_NUMBER3, ADC_INT_SOC_TRIGGER_NONE);
//
// Start of Conversion 4 Configuration
//
//
// Configures a start-of-conversion (SOC) in the ADC and its interrupt SOC trigger.
// SOC number : 4
// Trigger : ADC_TRIGGER_SW_ONLY
// Channel : ADC_CH_ADCIN7
// Sample Window : 8 SYSCLK cycles
// Interrupt Trigger: ADC_INT_SOC_TRIGGER_NONE
//
ADC_setupSOC(ADC_2_BASE, ADC_SOC_NUMBER4, ADC_TRIGGER_SW_ONLY, ADC_CH_ADCIN7, 8U);
ADC_setInterruptSOCTrigger(ADC_2_BASE, ADC_SOC_NUMBER4, ADC_INT_SOC_TRIGGER_NONE);
//
// Start of Conversion 5 Configuration
//
//
// Configures a start-of-conversion (SOC) in the ADC and its interrupt SOC trigger.
// SOC number : 5
// Trigger : ADC_TRIGGER_SW_ONLY
// Channel : ADC_CH_ADCIN8
// Sample Window : 8 SYSCLK cycles
// Interrupt Trigger: ADC_INT_SOC_TRIGGER_NONE
//
ADC_setupSOC(ADC_2_BASE, ADC_SOC_NUMBER5, ADC_TRIGGER_SW_ONLY, ADC_CH_ADCIN8, 8U);
ADC_setInterruptSOCTrigger(ADC_2_BASE, ADC_SOC_NUMBER5, ADC_INT_SOC_TRIGGER_NONE);
//
// Start of Conversion 6 Configuration
//
//
// Configures a start-of-conversion (SOC) in the ADC and its interrupt SOC trigger.
// SOC number : 6
// Trigger : ADC_TRIGGER_SW_ONLY
// Channel : ADC_CH_ADCIN14
// Sample Window : 8 SYSCLK cycles
// Interrupt Trigger: ADC_INT_SOC_TRIGGER_NONE
//
ADC_setupSOC(ADC_2_BASE, ADC_SOC_NUMBER6, ADC_TRIGGER_SW_ONLY, ADC_CH_ADCIN14, 8U);
ADC_setInterruptSOCTrigger(ADC_2_BASE, ADC_SOC_NUMBER6, ADC_INT_SOC_TRIGGER_NONE);
//
// Start of Conversion 7 Configuration
//
//
// Configures a start-of-conversion (SOC) in the ADC and its interrupt SOC trigger.
// SOC number : 7
// Trigger : ADC_TRIGGER_SW_ONLY
// Channel : ADC_CH_ADCIN15
// Sample Window : 8 SYSCLK cycles
// Interrupt Trigger: ADC_INT_SOC_TRIGGER_NONE
//
ADC_setupSOC(ADC_2_BASE, ADC_SOC_NUMBER7, ADC_TRIGGER_SW_ONLY, ADC_CH_ADCIN15, 8U);
ADC_setInterruptSOCTrigger(ADC_2_BASE, ADC_SOC_NUMBER7, ADC_INT_SOC_TRIGGER_NONE);
//
// ADC Interrupt 1 Configuration
// Source : ADC_SOC_NUMBER0
// Interrupt Source: enabled
// Continuous Mode : disabled
//
//
ADC_setInterruptSource(ADC_2_BASE, ADC_INT_NUMBER1, ADC_SOC_NUMBER0);
ADC_clearInterruptStatus(ADC_2_BASE, ADC_INT_NUMBER1);
ADC_disableContinuousMode(ADC_2_BASE, ADC_INT_NUMBER1);
ADC_enableInterrupt(ADC_2_BASE, ADC_INT_NUMBER1);
}
