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標(biāo)題: 這個AD轉(zhuǎn)換的配置是可以直接在單片機上用的嗎? [打印本頁]

作者: boyplant 時間: 2023-12-8 13:56
標(biāo)題: 這個AD轉(zhuǎn)換的配置是可以直接在單片機上用的嗎?
拜托各位大佬指導(dǎo)指導(dǎo)，下周就要去拿元件了
/*------------------------------------------------------------------*/
/* --- STC MCU International Limited -------------------------------*/
/* --- STC 1T Series MCU RC Demo -----------------------------------*/
/* If you want to use the program or the program referenced in the  */
/* article, please specify in which data and procedures from STC */
/*------------------------------------------------------------------*/

#include       "adc.h"
ADC初始化程序
void       ADC_Inilize(ADC_InitTypeDef *ADCx)
{
      P1ASF = ADCx->ADC_Px;
      ADC_CONTR = (ADC_CONTR & ~ADC_90T) | ADCx->ADC_Speed;
      if(ADCx->ADC_Power == ENABLE)       ADC_CONTR |= 0x80;
      else                                                       ADC_CONTR &= 0x7F;
      if(ADCx->ADC_AdjResult == ADC_RES_H2L8)       PCON2 |=  (1<<5);
      else                                                                      PCON2 &= ~(1<<5);
      if(ADCx->ADC_Interrupt == ENABLE)       EADC = 1;                      //             ENABLE,DISABLE
      else                                                             EADC = 0;
      if(ADCx->ADC_Polity == PolityHigh)       PADC = 1;
      else                                                             PADC = 0;
}

ADC電源控制程序
void       ADC_PowerControl(u8 pwr)
{
      if(pwr == ENABLE)       ADC_CONTR |= 0x80;
      else                               ADC_CONTR &= 0x7f;
}

查詢法讀一次ADC結(jié)果
u16       Get_ADC10bitResult(u8 channel)       //channel = 0~7
{
      u16       adc;
      u8       i;

      if(channel > ADC_CH7)       return       1024;
      ADC_RES = 0;
      ADC_RESL = 0;

      ADC_CONTR = (ADC_CONTR & 0xe0) | ADC_START | channel;
      NOP(4);

      for(i=0; i<250; i++)
      {
            if(ADC_CONTR & ADC_FLAG)
            {
                     ADC_CONTR &= ~ADC_FLAG;
                     if(PCON2 &  (1<<5))
                     {
                              adc = (u16)(ADC_RES & 3);
                              adc = (adc << 8) | ADC_RESL;
                     }
                     else
                     {
                              adc = (u16)ADC_RES;
                              adc = (adc << 2) | (ADC_RESL & 3);
                     }
                     return       adc;
            }
      }
      return       1024;       //´íÎó,·µ»Ø1024,µ÷ÓÃµÄ³ÌÐòÅÐ¶Ï
}

ADC中斷函數(shù)
用ad設(shè)計原理圖的時候，不用另外畫一個單獨的ad轉(zhuǎn)換模塊，拜托拜托了

void ADC_int (void) interrupt ADC_VECTOR
{
      ADC_CONTR &= ~ADC_FLAG;
}

配置ADC
void       ADC_config(void)
{
      ADC_InitTypeDef             ADC_InitStructure;
      ADC_InitStructure.ADC_Px       = ADC_P10;
      ADC_InitStructure.ADC_Speed    = ADC_360T;                      //                      ADC_90T,ADC_180T,ADC_360T,ADC_540T
      ADC_InitStructure.ADC_Power    = ENABLE;                      //       ENABLE,DISABLE
      ADC_InitStructure.ADC_AdjResult = ADC_RES_H8L2;             //       ADC_RES_H2L8,ADC_RES_H8L2
      ADC_InitStructure.ADC_Polity = PolityLow;             //       PolityHigh,PolityLow
      ADC_InitStructure.ADC_Interrupt = DISABLE;                      //             ENABLE,DISABLE
      ADC_Inilize(&ADC_InitStructure);                                     //
      ADC_PowerControl(ENABLE);                                                       / ENABLE或DISABLE
}

作者: Hephaestus 時間: 2023-12-8 20:26
你這個明顯是單片機內(nèi)部集成ADC，你怎么老是想著外接？

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