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发表于 2011-4-10 19:17:16
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显示全部楼层
void main(void)
{
WDTCTL=WDTPW+WDTHOLD;
LCD_init();
P6SEL |= 0x03; // Enable A/D channel A0
ADC12CTL0 = ADC12ON+SHT0_0+MSC+REFON+REF2_5V; // Turn on ADC12, set sampling time
ADC12CTL1 = SHP+CONSEQ_3; // Use sampling timer, set mode
ADC12MCTL0 = SREF_1+INCH_0;
ADC12MCTL0 = SREF_1+INCH_1;
ADC12IE = 0x03; // Enable ADC12IFG.0
ADC12CTL0 |= ENC; // Enable conversions
ADC12CTL0 |= ADC12SC; // Start conversion
_BIS_SR(LPM3_bits + GIE); // Enter LPM0,Enable interrupts
}
#pragma vector=ADC12_VECTOR
__interrupt void ADC12ISR (void)
{
static unsigned int index = 0;
results[index] = ADC12MEM0; // Move results
results1[index] = ADC12MEM1; // Move results
index = (index+1)%Num_of_Results; // Increment results index, modulo
if(index==0)
{
v=results[0];
for(i=1;i<Num_of_Results;i++)
{
if(v<results)v=results;
}
v=((double)v/(double)4096)*2.5;
}
这是我做过的 单通道 测正弦交流信号 很好用
楼主的程序不知参照何处写的
感觉有点乱 看着费劲
建议参照TI的 官方例程修改吧 |
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