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我想实现的功能为：通过8个通道采集AD，定时器触发采样率为1个周期80个点，然后将通道ADC12CH_0和通道ADC12CH_1采集的数据存储在开辟的两段FRAM区域里面，用序列通道（ADC12CONSEQ_1）采。但是，不能进入中断。不知道啥原因，下面是程序部分，请各位大神帮忙解答！万分感谢。（注：我用的MCU是MSP430FR5969）
#include #define FRAM_TEST_START0 0x9000 #define FRAM_TEST_START1 0xD000 volatile unsigned long ADC_Data[8]; unsigned char count = 0; unsigned long *FRAM_write_ptr; void GPIOInit(void) { // Configure all un-used GPIO to lowest power state P1DIR = 0xFF; P1OUT = 0; P1SEL1 |= BIT0 | BIT1 | BIT2 | BIT3 | BIT4 | BIT5;// Configure P1.0 P1.1 P1.2 P1.3 P1.4 P1.5for ADC P1SEL0 |= BIT0 | BIT1 | BIT2 | BIT3 | BIT4 | BIT5;// A0~A5 P2DIR = 0xFF; P2OUT = 0; // P2OUT = 0xFF; P2SEL1 |= BIT3 | BIT4; // Configure P2.3 and P2.4 for ADC P2SEL0 |= BIT3 | BIT4; // A6~A7 P3DIR = 0xFF; P3OUT = 0; // P2OUT = 0xFF; P4DIR = 0xFF; P4OUT = 0; PJOUT = 0; PJSEL0 = BIT4 | BIT5; // For XT1 PJDIR = 0xFFFF; // Disable the GPIO power-on default high-impedance mode to activate // previously configured port settings PM5CTL0 &= ~LOCKLPM5; } void clockInit(void) { // Clock System Setup CSCTL0_H = CSKEY >> 8; // Unlock CS registers CSCTL1 = DCOFSEL_6; // Set DCO to 8MHz CSCTL2 = SELA__LFXTCLK | SELS__DCOCLK | SELM__DCOCLK; // Set ACLK = XT1; MCLK = SMCLK = DCO CSCTL3 = DIVA__1 | DIVS__1 | DIVM__1; // Set all dividers CSCTL4 &= ~LFXTOFF; // Enable LFXT1 do { CSCTL5 &= ~LFXTOFFG; // Clear XT1 fault flag SFRIFG1 &= ~OFIFG; } while (SFRIFG1 & OFIFG); // Test oscillator fault flag CSCTL0_H = 0; // Lock CS registers } void TimerInit(void) { // Configure Timer0_A TA0CCR0 = 8-1; // 32K/32 = 1000Hz freq. TA0CCTL1 = OUTMOD_7; // CCR1 reset/set TA0CCR1 = 4; // 16/32 = 50% duty cycl TA0CTL = TASSEL__ACLK | MC__UP | TACLR; // ACLK, up mode, clear TAR } void FRAMWrite(unsigned long data) { *FRAM_write_ptr++ = data; } void ADC12Init() { // By default, REFMSTR=1 => REFCTL 是配置内部参考电压的寄存器 // while(REFCTL0 & REFGENBUSY); // 如果参考电压发生器busy, 等待 // REFCTL0 |= REFVSEL_2 | REFON; // 选择内部参考源 ref = 2.5V，使能内部参考源 // Configure ADC12 ADC12CTL0 = ADC12SHT0_2 | ADC12ON | ADC12MSC; // Sampling time, S&H=16, ADC12 on ADC12CTL1 = ADC12SHP + ADC12SHS_1 + ADC12SSEL_1 + ADC12CONSEQ_1; // Use sampling timer, Use TA0CCR1 output as trigger , sequence channel ADC12CTL2 |= ADC12RES_2 + ADC12PWRMD; // 12-bit conversion results, low power mode ADC12CTL3 = ADC12CSTARTADD_0;// | ADC12CSTARTADD_1; // while(!(REFCTL0 & REFGENRDY)); // 等待参考源生效 ADC12IER0 |= ADC12IE0; //开中断 ADC12MCTL7 |= ADC12INCH_7 | ADC12VRSEL_1; // A2 ADC input select; Vref=AVCC ADC12MCTL1 |= ADC12INCH_1 | ADC12VRSEL_1; ADC12MCTL0 |= ADC12INCH_2 | ADC12VRSEL_1; ADC12MCTL3 |= ADC12INCH_3 | ADC12VRSEL_1; ADC12MCTL4 |= ADC12INCH_4 | ADC12VRSEL_1; ADC12MCTL5 |= ADC12INCH_5 | ADC12VRSEL_1; ADC12MCTL6 |= ADC12INCH_6 | ADC12VRSEL_1; ADC12MCTL0 |= ADC12INCH_0 | ADC12VRSEL_1 + ADC12EOS; ADC12CTL0 |= ADC12ENC | ADC12SC; //转换使能，开始转换 } int main(void) { WDTCTL = WDTPW | WDTHOLD; // Stop WDT GPIOInit(); clockInit(); TimerInit(); ADC12Init(); while (1) { __bis_SR_register(LPM3_bits | GIE); // LPM3, ADC12_ISR will force exit __no_operation(); // For debugger } } #if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__) #pragma vector = ADC12_VECTOR __interrupt void ADC12_ISR(void) #elif defined(__GNUC__) void __attribute__ ((interrupt(ADC12_VECTOR))) ADC12_ISR (void) #else #error Compiler not supported! #endif { switch(__even_in_range(ADC12IV, ADC12IV_ADC12RDYIFG)) { case ADC12IV_NONE: break; // Vector 0: No interrupt case ADC12IV_ADC12OVIFG: break; // Vector 2: ADC12MEMx Overflow case ADC12IV_ADC12TOVIFG: break; // Vector 4: Conversion time overflow case ADC12IV_ADC12HIIFG: break; // Vector 6: ADC12BHI case ADC12IV_ADC12LOIFG: break; // Vector 8: ADC12BLO case ADC12IV_ADC12INIFG: break; // Vector 10: ADC12BIN case ADC12IV_ADC12IFG0: // Vector 12: ADC12MEM0 Interrupt ADC_Data[0] = ADC12MEM0; ADC_Data[1] = ADC12MEM1; FRAM_write_ptr = (unsigned long *)FRAM_TEST_START0; FRAMWrite(ADC_Data[0]); // Endless loop ADC12MCTL0&=~ADC12INCH_2; //通道清2 FRAM_write_ptr = (unsigned long *)FRAM_TEST_START1; FRAMWrite(ADC_Data[1]); // Endless loop ADC12MCTL1&=~ADC12INCH_3; //通道清3 // Exit from LPM0 and continue executing main __bic_SR_register_on_exit(LPM3_bits); break; case ADC12IV_ADC12IFG1: break; // Vector 14: ADC12MEM1 case ADC12IV_ADC12IFG2: break; // Vector 16: ADC12MEM2 case ADC12IV_ADC12IFG3: break; // Vector 18: ADC12MEM3 case ADC12IV_ADC12IFG4: break; // Vector 20: ADC12MEM4 case ADC12IV_ADC12IFG5: break; // Vector 22: ADC12MEM5 case ADC12IV_ADC12IFG6: break; // Vector 24: ADC12MEM6 case ADC12IV_ADC12IFG7: break; // Vector 26: ADC12MEM7 case ADC12IV_ADC12IFG8: break; // Vector 28: ADC12MEM8 case ADC12IV_ADC12IFG9: break; // Vector 30: ADC12MEM9 case ADC12IV_ADC12IFG10: break; // Vector 32: ADC12MEM10 case ADC12IV_ADC12IFG11: break; // Vector 34: ADC12MEM11 case ADC12IV_ADC12IFG12: break; // Vector 36: ADC12MEM12 case ADC12IV_ADC12IFG13: break; // Vector 38: ADC12MEM13 case ADC12IV_ADC12IFG14: break; // Vector 40: ADC12MEM14 case ADC12IV_ADC12IFG15: break; // Vector 42: ADC12MEM15 case ADC12IV_ADC12IFG16: break; // Vector 44: ADC12MEM16 case ADC12IV_ADC12IFG17: break; // Vector 46: ADC12MEM17 case ADC12IV_ADC12IFG18: break; // Vector 48: ADC12MEM18 case ADC12IV_ADC12IFG19: break; // Vector 50: ADC12MEM19 case ADC12IV_ADC12IFG20: break; // Vector 52: ADC12MEM20 case ADC12IV_ADC12IFG21: break; // Vector 54: ADC12MEM21 case ADC12IV_ADC12IFG22: break; // Vector 56: ADC12MEM22 case ADC12IV_ADC12IFG23: break; // Vector 58: ADC12MEM23 case ADC12IV_ADC12IFG24: break; // Vector 60: ADC12MEM24 case ADC12IV_ADC12IFG25: break; // Vector 62: ADC12MEM25 case ADC12IV_ADC12IFG26: break; // Vector 64: ADC12MEM26 case ADC12IV_ADC12IFG27: break; // Vector 66: ADC12MEM27 case ADC12IV_ADC12IFG28: break; // Vector 68: ADC12MEM28 case ADC12IV_ADC12IFG29: break; // Vector 70: ADC12MEM29 case ADC12IV_ADC12IFG30: break; // Vector 72: ADC12MEM30 case ADC12IV_ADC12IFG31: break; // Vector 74: ADC12MEM31 case ADC12IV_ADC12RDYIFG: break; // Vector 76: ADC12RDY default: break; } } 
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8个回答
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应该在中断里边采数据吧！
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开通连续采集是吧
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我选择采的模式是序列通道单次采集，即ADC12CONSEQ_1。你有解决办法吗？实在是没招了，调了2天了 |
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怎么没人啊，跪求解答啊，跪谢！！！！
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ytm1987 发表于 2015-12-21 10:19 已自己解决了，谢谢啦！ |
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怎么解决的 ？
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2016-9-2 14:57:27
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