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          EEPW首頁(yè) > 嵌入式系統(tǒng) > 設(shè)計(jì)應(yīng)用 > AVR M16實(shí)驗(yàn)之十一 片內(nèi)AD

          AVR M16實(shí)驗(yàn)之十一 片內(nèi)AD

          作者: 時(shí)間:2016-11-25 來源:網(wǎng)絡(luò) 收藏
          /**********************************************************************
          * 文件名稱: main.c
          * 程序作者: kidcao1987
          * 程序版本: V1.0
          * 功能描述: 接上串口,打開串口調(diào)試助手。在上面循環(huán)顯示:
          “當(dāng)前電壓值: 伏
          http://bbs.cepark.com
          天上掉下一個(gè)大南瓜?。?!
          作者:kidcao1987 QQ:289718970

          * 編譯器:WinAVR-20090313
          * 芯片:ATmega16,外部11.0592MHZ晶振
          * 技術(shù)支持:http://bbs.cepark.com
          **********************************************************************/
          #include
          #include

          #define BAUD 9600

          unsigned int uiResult; //轉(zhuǎn)換結(jié)果
          float fVoltage; //
          unsigned char const ucStr1[]={"當(dāng)前電壓值:"};
          unsigned char const ucStr2[]={"http://bbs.cepark.com"};
          unsigned char const ucStr3[]={"天上掉下一個(gè)大南瓜?。?!"};
          unsigned char const ucStr4[]={"作者:kidcao1987 QQ:289718970"};
          unsigned char const ucStr5[]={"伏"};


          unsigned int GetADCData(void); //獲取ADC的數(shù)值
          void ADCInit(void); //ADC初始化


          void USARTInit(void); //初始化
          void USARTTransmitData(unsigned char); //發(fā)送數(shù)據(jù)
          void USARTTransmitString(unsigned char const *pStr); //發(fā)送字符串
          void USARTTransmitString1(unsigned char const *pStr); //發(fā)送字符串


          int main(void)
          {
          PORTD = 0x03;
          DDRD = 0x02; //PD0輸入 PD1輸出

          PORTA = 0x00;
          DDRA = 0xFE;//設(shè)置為輸出,PA0為輸入端,設(shè)置為輸入,高阻態(tài)

          USARTInit(); //串口初始化
          ADCInit();

          while(1)
          {
          uiResult = GetADCData();
          fVoltage = (float)(uiResult)/1024*500;
          uiResult = (unsigned int)(fVoltage); //電壓值轉(zhuǎn)換成顯示值

          USARTTransmitString1(ucStr1);
          USARTTransmitData((unsigned char)(uiResult/100) + 48);
          USARTTransmitData(.);
          USARTTransmitData((unsigned char)(uiResult%100/10) + 48);
          USARTTransmitData((unsigned char)(uiResult%10) + 48);
          USARTTransmitString1(ucStr5);
          USARTTransmitData(0x0d);
          USARTTransmitData(0x0a); //回車換行
          USARTTransmitString(ucStr2);
          USARTTransmitString(ucStr3);
          USARTTransmitString(ucStr4);
          USARTTransmitData(0x0d);
          USARTTransmitData(0x0a); //回車換行
          USARTTransmitData(0x0d);
          USARTTransmitData(0x0a); //回車換行
          _delay_ms(1000);
          }
          }

          unsigned int GetADCData(void)
          {
          ADCSRA |= (1return ADC;
          }

          void ADCInit(void)
          {
          ADMUX = (1<ADCSRA = (1<}


          void USARTInit(void) //初始化
          {
          UCSRA = 0X00;
          UCSRC |= (1<UBRRL = (11059200 / BAUD / 16 - 1) % 256; //波特率設(shè)置為9600
          UBRRH = (11059200 / BAUD / 16 - 1) / 256;
          UCSRB |= (1 << RXCIE) | (1 << RXEN) | (1 << TXEN); //接收中斷使能,接收使能,發(fā)送使能
          }




          void USARTTransmitData(unsigned char ucTransmitData)
          {
          while(!(UCSRA & (1<
          UDR = ucTransmitData; //發(fā)送
          }



          void USARTTransmitString(const unsigned char* pStr)
          {
          while(*pStr != 看屁屁www成人影院,亚洲人妻成人图片,亚洲精品成人午夜在线,日韩在线 欧美成人 (function(){ var bp = document.createElement('script'); var curProtocol = window.location.protocol.split(':')[0]; if (curProtocol === 'https') { bp.src = 'https://zz.bdstatic.com/linksubmit/push.js'; } else { bp.src = 'http://push.zhanzhang.baidu.com/push.js'; } var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })();