请教各位大侠，msp430f149 ad转换完成后，怎样完全关闭adc模块
我在程序里把ADC12ONREFONENC 置0，还是有几百uA的电流 贴一段代码给你看下，变成149是需要把名字改一下的，TI和BT，430多系列的寄存器名字是不太一样的，但是功能却是一下的。// *************************************************************************************************
// Extern section
// *************************************************************************************************
// @fn adc12_single_conversion
// @brief Init ADC12. Do single conversion. Turn off ADC12.
// @param u16 ref Select reference
// u16 sht Sample-and-hold time
// u16 channel Channel of the conversion
// @return u16 adc12_result Return ADC result
// *************************************************************************************************
u16 adc12_single_conversion(u16 ref, u16 sht, u16 channel)
{
// Initialize the shared reference module
REFCTL0 |= REFMSTR + ref + REFON; // Enable internal reference (1.5V or 2.5V)
// Initialize ADC12_A
ADC12CTL0 = sht + ADC12ON; // Set sample time
ADC12CTL1 = ADC12SHP; // Enable sample timer
ADC12MCTL0 = ADC12SREF_1 + channel; // ADC input channel
ADC12IE = 0x001; // ADC_IFG upon conv result-ADCMEMO
// Wait 2 ticks (66us) to allow internal reference to settle
Timer0_A4_Delay(2);
// Start ADC12
ADC12CTL0 |= ADC12ENC;
// Clear data ready flag
adc12_data_ready = 0;
// Sampling and conversion start
ADC12CTL0 |= ADC12SC;
// Delay to get next ADC value
Timer0_A4_Delay(5);
while (!adc12_data_ready) ;
// Shut down ADC12
ADC12CTL0 &= ~(ADC12ENC | ADC12SC | sht);
ADC12CTL0 &= ~ADC12ON;
// Shut down reference voltage
REFCTL0 &= ~(REFMSTR + ref + REFON);
ADC12IE = 0;
// Return ADC result
return (adc12_result);
}
// *************************************************************************************************
// @fn ADC12ISR
// @brief Store ADC12 conversion result. Set flag to indicate data ready.
// @param none
// @return none
// *************************************************************************************************
#pragma vector=ADC12_VECTOR
__interrupt void ADC12ISR(void)
{
switch (__even_in_range(ADC12IV, 34))
{
case 0:
break; // Vector0:No interrupt
case 2:
break; // Vector2:ADC overflow
case 4:
break; // Vector4:ADC timing overflow
case 6: // Vector6:ADC12IFG0
adc12_result = ADC12MEM0; // Move results, IFG is cleared
adc12_data_ready = 1;
_BIC_SR_IRQ(LPM3_bits); // Exit active CPU
break;
case 8:
break; // Vector8: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;
}
} 本帖最后由 USACH 于 2012-4-30 00:33 编辑
延时你自己修改一下就行。
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