Hi,
the below is my ADC code, and we have integrated a uart to print the ADC value on console. the ADC configured for A single channel is converted repeatedly. and i am able to get the print continuously in ISR if it's in debug mode,
if i flashed the code then i unable to get the print continuously. can you please say what may be the issue.
unsigned int ADC_Result;
int main(void)
{
WDTCTL = WDTPW | WDTHOLD; // Stop WDT
initClockTo16MHz();
// Configure GPIO
P1DIR |= BIT0; // Set P1.0/LED to output direction
P1OUT &= ~BIT0; // P1.0 LED off
#ifdef UART_PRINT_ENABLE
UART_config(); // Configures UART
#endif
// Configure ADC A1 pin
SYSCFG2 |= ADCPCTL1;
// Disable the GPIO power-on default high-impedance mode to activate
// previously configured port settings
PM5CTL0 &= ~LOCKLPM5;
// Configure ADC10
ADCCTL0 |= ADCSHT_2 | ADCON; // ADCON, S&H=16 ADC clks
ADCCTL1 |= ADCSHP; // ADCCLK = MODOSC; sampling timer
ADCCTL2 |= ADCRES; // 10-bit conversion results
ADCMCTL0 |= ADCINCH_3; // A1 ADC input select; Vref=AVCC
ADCIE |= ADCIE0; // Enable ADC conv complete interrupt
msp_uart_log_info ("MSP: ADC Configured......\n\r");
while(1)
{
ADCCTL0 |= ADCENC | ADCSC; // Sampling and conversion start
__bis_SR_register(LPM0_bits | GIE); // LPM0, ADC_ISR will force exit
__no_operation(); // For debug only
if (ADC_Result < 0x1FF)
P1OUT &= ~BIT0; // Clear P1.0 LED off
else
P1OUT |= BIT0; // Set P1.0 LED on
__delay_cycles(5000);
}
}
// ADC interrupt service routine
#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector=ADC_VECTOR
__interrupt void ADC_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(ADC_VECTOR))) ADC_ISR (void)
#else
#error Compiler not supported!
#endif
{
switch(__even_in_range(ADCIV,ADCIV_ADCIFG))
{
case ADCIV_NONE:
break;
case ADCIV_ADCOVIFG:
break;
case ADCIV_ADCTOVIFG:
break;
case ADCIV_ADCHIIFG:
break;
case ADCIV_ADCLOIFG:
break;
case ADCIV_ADCINIFG:
break;
case ADCIV_ADCIFG:
ADC_Result = ADCMEM0;
msp_uart_log_info ("MSP: ADC intrr %d\n\r",ADC_Result);
__bic_SR_register_on_exit(LPM0_bits); // Clear CPUOFF bit from LPM0
break;
default:
break;
}
}
