用的是430ware里的例程,但是我debug的时候,results数组的值全部都是0,也就是没有读取。直接看寄存器值是正常的。
我看到一条错误是说:cannot load from non-primitive location,意思是不能以非源类型(char,int之类的)加载。
求问大家应该如何解决,我是用TI的例程原封不动的,不知道为何出现这种情况。
- #include <msp430.h>
- #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
- ADC12CTL0 = ADC12ON+ADC12SHT0_8+ADC12MSC; // 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;
- }
- }