MSP430錯誤：「::主」必須返回「詮釋」

Question

我試圖this IRreceiver code.

如果我試圖把它上傳到我的MSP430G2452，的iget錯誤：error: '::main' must return 'int'。 沒有人在論壇上寫過這個錯誤。這有什麼問題？

#include "msp430g2553.h" 

#define T05 300 
#define T25 T05*5 
#define T35 T05*7 
#define T50 T05*10 
#define TMAX 65000 

#define IR_DETECTOR_PIN BIT1 

void reset(); 

unsigned int rxData = 0; // received data: A4-A0 and C6-C0 0000 AAAA ACCC CCCC 
unsigned int bitCounter = 0; 

void main(void) { 
    WDTCTL = WDTPW + WDTHOLD; // stop WDT 
    BCSCTL1 = CALBC1_1MHZ; // load calibrated data 
    DCOCTL = CALDCO_1MHZ; 

    P1OUT &= ~(BIT0 + BIT6); // P1.0 & P1.6 out (LP LEDs) 
    P1DIR |= (BIT0 + BIT6); 

    P1REN |= IR_DETECTOR_PIN; // P1.1 pull-up 
    P1OUT |= IR_DETECTOR_PIN; // P1.1 pull-up 
    P1IE |= IR_DETECTOR_PIN; // P1.1 interrupt enabled 
    P1IES |= IR_DETECTOR_PIN; // P1.1 high/low edge 
    P1IFG &= ~IR_DETECTOR_PIN; // P1.1 IFG cleared 

    CCR0 = TMAX; // interrupt if no edge for T32 
    TACTL = TASSEL_2 + MC_1; // SMCLK, up mode 

    __bis_SR_register(LPM0_bits + GIE); 
    // switch to LPM0 with interrupts 
} 

// Port 1 interrupt service routine 
#pragma vector=PORT1_VECTOR 
__interrupt void Port_1(void) { 

    if (P1IFG & IR_DETECTOR_PIN) { 
     P1IE &= ~IR_DETECTOR_PIN; 

     if (bitCounter == 0) { 
      P1IES &= ~IR_DETECTOR_PIN; // P1.1 low/high edge 
      bitCounter++; 
      TACTL |= TACLR; 
      TACTL |= MC_1; 
      CCTL0 = CCIE; 
     } else { 
      switch (bitCounter) { 
      case 14: // received all bits 
       // process received data, for example toggle LEDs 
       switch (rxData & 0x001F) { // mask device number 
       case 19: // Volume - 0010011 = 19 
        P1OUT ^= BIT0; 
        break; 
       case 18: // Volume + 0010010 = 18 
        P1OUT ^= BIT6; 
        break; 
       case 21: // Power 0010101 = 21 
        P1OUT |= BIT6; 
        P1OUT |= BIT0; 
        break; 
       case 20: // Mute 0010100 = 20 
        P1OUT &= ~BIT6; 
        P1OUT &= ~BIT0; 
        break; 
       } 
       reset(); 
       break; 
      case 1: // start bit? 
       if (TA0R < T35) { // could also add || TA0R > T50 
        reset(); 
       } else { 
        TACTL |= TACLR; 
        TACTL |= MC_1; 
        bitCounter++; 
       } 
       break; 
      default: // data bit 
       rxData >>= 1; 
       if (TA0R > T25) { 
        rxData |= 0x0800; // set bit 12 of rxData 
       } 
       TACTL |= TACLR; 
       TACTL |= MC_1; 
       bitCounter++; // increase bit counter 
       break; 
      } 
     } 
     P1IFG &= ~IR_DETECTOR_PIN; 
     P1IE |= IR_DETECTOR_PIN; 
    } 
} 

void reset() { 
    CCTL0 &= ~CCIE; 
    P1IES |= IR_DETECTOR_PIN; // P1.1 high/low edge 
    rxData = 0; 
    bitCounter = 0; 
} 

#pragma vector=TIMER0_A0_VECTOR 
__interrupt void Timer_A(void) { 
    // reset 
    P1IE &= ~IR_DETECTOR_PIN; 
    reset(); 
    P1IFG &= ~IR_DETECTOR_PIN; 
    P1IE |= IR_DETECTOR_PIN; 
} 

    [1]: http://forum.43oh.com/topic/288-launchpad-ir-receiver/?p=29591 

Answer 1

你的編譯器期待的主要功能有int

變化

void main(void) 

要返回類型：

int main() 

，並在main()末增加return 0;