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#include <msp430g2553.h>
/**
* main.c
* Use ADC module to read the value of the MCU's internal temperature sensor
* and dump those values into an array.
*/
volatile unsigned counter = 0;
volatile unsigned temparr[20];
void main(void)
{
WDTCTL = WDTPW + WDTHOLD; // Stop WDT
ADC10CTL0 = SREF_1 + ADC10SHT_3 + REFON + ADC10ON + ADC10IE + MSC; // Set ADC module
ADC10CTL1 = CONSEQ_2 + INCH_10 + ADC10DIV_7; // Set ADC module
ADC10DTC0 = ADC10CT; // Set ADC module
ADC10CTL0 |= ENC + ADC10SC;
__enable_interrupt();
}
#pragma vector=ADC10_VECTOR
__interrupt void ADC10_IRS(void)
{
//while (ADC10CTL1 & BUSY); // Give time to the ADC to settle
if (counter < 20) {
temparr[counter] = ADC10MEM;
counter++;
}
else {
counter = 0;
ADC10CTL0 &= ~(ENC + ADC10SC);
}
}
I wrote a small program to continuously sample the internal temperature sensor of the MSP430G2553 based on the ADC10 interrupt. My code, however, does not do that. It triggers the interrupt (only) once, it populates the first index of the array, and then it stops. What am I missing? Thanks.
Thank you Bruce. Unfortunately, removing the "while" loop did not solve my problem. The first index of the array gets populated with the first sample (the interrupt gets triggered once) but the interrupt does not get "hit" a second time. Same thing happens with or without the while loop.
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