Hi, Can you review this code because it is not working for me. This is ADC Code, In this code i configured internal reference and perform repeated conversions on a single channel using "repeat-single-channel" mode. #include #define Num_of_Results 8 volatile unsigned int results[Num_of_Results]; // Needs to be global in this // example. Otherwise, the // compiler removes it because it // is not used for anything. int main(void) { WDTCTL = WDTPW+WDTHOLD; // Stop watchdog timer P6SEL |= 0x01; // Enable A/D channel A0 REFCTL0 &= ~REFMSTR; // Reset REFMSTR to hand over control to // ADC12_A ref control registers ADC12CTL0 = ADC12CTL0 = ADC12ON+ADC12SHT02+ADC12REFON+ADC12REF2_5V; // Turn on ADC12, set sampling time // set multiple sample conversion ADC12CTL1 = ADC12SHP+ADC12CONSEQ_2; // Use sampling timer, set mode ADC12IE = 0x01; // Enable ADC12IFG.0 ADC12CTL0 |= ADC12ENC; // Enable conversions ADC12CTL0 |= ADC12SC; // Start conversion __bis_SR_register(LPM4_bits + GIE); // Enter LPM4, Enable interrupts __no_operation(); // For debugger } #if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__) #pragma vector=ADC12_VECTOR __interrupt void ADC12ISR (void) #elif defined(__GNUC__) void __attribute__ ((interrupt(ADC12_VECTOR))) ADC12ISR (void) #else #error Compiler not supported! #endif { static unsigned char index = 0; switch(__even_in_range(ADC12IV,34)) { case 0: break; // Vector 0: No interrupt case 2: break; // Vector 2: ADC overflow case 4: break; // Vector 4: ADC timing overflow case 6: // Vector 6: ADC12IFG0 results[index] = ADC12MEM0; // Move results index++; // Increment results index, modulo; Set Breakpoint1 here if (index == 8) { index = 0; } case 8: break; // Vector 8: ADC12IFG1 case 10: break; // Vector 10: ADC12IFG2 case 12: break; // Vector 12: ADC12IFG3 case 14: break; // Vector 14: ADC12IFG4 case 16: break; // Vector 16: ADC12IFG5 case 18: break; // Vector 18: ADC12IFG6 case 20: break; // Vector 20: ADC12IFG7 case 22: break; // Vector 22: ADC12IFG8 case 24: break; // Vector 24: ADC12IFG9 case 26: break; // Vector 26: ADC12IFG10 case 28: break; // Vector 28: ADC12IFG11 case 30: break; // Vector 30: ADC12IFG12 case 32: break; // Vector 32: ADC12IFG13 case 34: break; // Vector 34: ADC12IFG14 default: break; } } I am reading wrong hex value @ ADC12MEM0. For 1.93V at A0 I am reading 0x094F but I need read 0x0C5F. I dont know whether i configured internal reference correctly. Thanks Sathiyan
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