基于MSP430f5529的ADC12A0通道的0~2.5V电压采集程序

ID:815603 · 发表于 2020-8-23 21:27

#include <msp430f5529.h>
#define uint unsigned int
#define uchar unsigned char
uint results[32]; //保存ADC转换结果的数组
unsigned int i;

void main(void)
{
uchar i;

WDTCTL = WDTPW+WDTHOLD;

P6SEL |= 0x01;          //使能A0输入通道
REFCTL0 &= ~REFMSTR;    //复位控制
ADC12CTL0 = ADC12ON + ADC12SHT02 + ADC12REFON + ADC12REF2_5V;

ADC12CTL1 = ADC12SHP;    //采样保持
ADC12MCTL0 = ADC12SREF_1; //存储参考电压

for(i=0;i<0x30;i++) ;       //延时稳定

ADC12CTL0 |= ADC12ENC;    //使能转换

while(1)
{
      ADC12CTL0 |= ADC12SC;    //开始转换
      while((!ADC12IFG & BIT0)); //等待
      results[0] = ADC12MEM0;             // 转换 results
   }
}

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