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      1. 新聞中心

        EEPW首頁 > 嵌入式系統(tǒng) > 設(shè)計應(yīng)用 > 深入理解ARM體系架構(gòu)(S3C6410)---ad轉(zhuǎn)化實例

        深入理解ARM體系架構(gòu)(S3C6410)---ad轉(zhuǎn)化實例

        作者: 時間:2016-11-09 來源:網(wǎng)絡(luò) 收藏
        本實例是把采集的ad數(shù)據(jù)轉(zhuǎn)化后顯示在lcd屏上,在這直接把自己調(diào)試好的源碼貼出來

        本文引用地址:http://www.biyoush.com/article/201611/317830.htm

        ad轉(zhuǎn)化器相關(guān)代碼:

        [cpp]view plaincopyprint?
        1. voidadc_init()
        2. {
        3. charpreScaler=66500000/2500000-1;//PCLK=66M
        4. rADCCON=(1<<14)|(preScaler<<6)|(0<<3)|(0<<2);//通道AIN0
        5. //rADCCON=0x44c1;//通道AIN0
        6. }
        7. intread_adc()
        8. {
        9. rADCCON|=0x01;//startADC
        10. while(rADCCON&0x1);//checkifEnable_startislow
        11. while(!(rADCCON&0x8000));//checkifEC(EndofConversion)flagishigh
        12. return((int)rADCDAT0&0x3ff);
        13. }
        14. voiddelay_adc()
        15. {
        16. inti,j;
        17. for(i=0;i<10000000;i++)
        18. for(j=0;j>10000000;j++);
        19. }

        lcd相關(guān)代碼:

        初始化子程序:

        [cpp]view plaincopyprint?
        1. voidLCD_Init(void)
        2. {
        3. //設(shè)置LCD調(diào)光
        4. //rGPFCON|=(1<<30);//設(shè)置LCD調(diào)光管腳GPF15(PWM1)為輸出
        5. //rGPFDAT|=(1<<15);//rGPFDAT=0x00002000;
        6. //rGPFPUD&=~(1<<30);//rGPFPUD=0x00000000;
        7. //設(shè)置VD0~15
        8. rGPICON=0xaaaaaaaa;//設(shè)置GPI0~15為LCDVD0~15
        9. rGPIPUD=0xffffffff;
        10. //設(shè)置VD16~23和HSYNC、VSYNC、VDEN、VCLK
        11. rGPJCON=0x00aaaaaa;
        12. rGPJPUD=0xffffffff;
        13. rWINCON0&=~(1<<0);
        14. //LCD寄存器設(shè)置
        15. rSPCON&=(~0x3);
        16. rSPCON|=(1<<0);//設(shè)置RGBI/F配置
        17. rMIFPCON&=~(1<<3);//設(shè)置LCD支路為一般模式
        18. rVIDCON0=(0<<29)|(0<<26)|(0<<17)|(1<<16)|(9<<6)|(0<<5)|(1<<4)|(0<<3)|(0<<2);
        19. rVIDCON1=1<<7;//1=RGB類型LCD設(shè)備在VCLK上升沿得到視頻數(shù)據(jù)
        20. //設(shè)置屏的時序
        21. rVIDTCON0=(0x00<<16)|(0x00<<8)|(0x02<<0);
        22. rVIDTCON1=(0x2d<<16)|(0x04<<8)|(0x06<<0);
        23. rVIDTCON2=(271<<11)|(479<<0);
        24. //設(shè)置窗口格式
        25. rWINCON0=11<<2;//設(shè)置24BPP
        26. //設(shè)置窗口位置
        27. rVIDOSD0A=(0<<11)|(0<<0);
        28. rVIDOSD0B=(479<<11)|(271<<0);
        29. rVIDOSD0C=(((480*272)&0xffffff)<<0);//4.3屏幕分辨率480*272
        30. //設(shè)置Window1的開始和結(jié)束的緩存地址與地址在內(nèi)存中的存放地址以及緩存的大小
        31. rVIDW00ADD0B0=((addr>>24)<<24)|(addr&0xffffff);
        32. rVIDW00ADD1B0=(addr&0xffffff+480*272);
        33. rVIDW00ADD2=(0<<13)|(480<<0);
        34. //設(shè)置抖動
        35. rDITHMODE=(1<<5)|(1<<3)|(1<<1)|(1<<0);
        36. //開顯示
        37. rVIDCON0|=(3<<0);
        38. rWINCON0|=(1<<0);
        39. }

        lcd字符顯示子程序:

        [cpp]view plaincopyprint?
        1. voidPaint_text(unsignedintx,unsignedinty,unsignedintcolor,unsignedcharch[],unsignedintlengx,intlengy){
        2. inti,j,test,t=-1;
        3. for(i=0;i<lengy;i++){
        4. for(j=0;j<lengx;j++){
        5. if(j%8==0){
        6. test=0x80;
        7. t++;
        8. }
        9. if(ch[t]&test)
        10. LCD_BUFFER[y+i][x+j]=color;
        11. else
        12. LCD_BUFFER[y+i][x+j]=0xffffff;
        13. test>>=1;
        14. }
        15. }
        16. }


        頭文件中字符數(shù)據(jù)定義:

        [cpp]view plaincopyprint?
        1. unsignedcharcharnum[10][16]={
        2. {0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18,0x00,0x00},
        3. {0x00,0x00,0x00,0x10,0x70,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00},
        4. {0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x04,0x04,0x08,0x10,0x20,0x42,0x7E,0x00,0x00},
        5. {0x00,0x00,0x00,0x3C,0x42,0x42,0x04,0x18,0x04,0x02,0x02,0x42,0x44,0x38,0x00,0x00},
        6. {0x00,0x00,0x00,0x04,0x0C,0x14,0x24,0x24,0x44,0x44,0x7E,0x04,0x04,0x1E,0x00,0x00},
        7. {0x00,0x00,0x00,0x7E,0x40,0x40,0x40,0x58,0x64,0x02,0x02,0x42,0x44,0x38,0x00,0x00},
        8. {0x00,0x00,0x00,0x1C,0x24,0x40,0x40,0x58,0x64,0x42,0x42,0x42,0x24,0x18,0x00,0x00},
        9. {0x00,0x00,0x00,0x7E,0x44,0x44,0x08,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00},
        10. {0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x24,0x18,0x24,0x42,0x42,0x42,0x3C,0x00,0x00},
        11. {0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x26,0x1A,0x02,0x02,0x24,0x38,0x00,0x00}};
        12. unsignedcharcharnumc[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x22,0x40,0x40,0x40,0x22,0x1C,0x00,0x00};
        13. unsignedcharcharnumo[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x42,0x42,0x3C,0x00,0x00};
        14. unsignedcharcharnumn[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xDC,0x62,0x42,0x42,0x42,0x42,0xE7,0x00,0x00};
        15. unsignedcharcharnumv[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE7,0x42,0x24,0x24,0x28,0x10,0x10,0x00,0x00};
        16. unsignedcharcharnume[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x7E,0x40,0x40,0x42,0x3C,0x00,0x00};
        17. unsignedcharcharnumr[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xEE,0x32,0x20,0x20,0x20,0x20,0xF8,0x00,0x00};
        18. unsignedcharcharnums[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3E,0x42,0x40,0x3C,0x02,0x42,0x7C,0x00,0x00};
        19. unsignedcharcharnumi[]={0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x70,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00};


        主函數(shù)程序:

        [cpp]view plaincopyprint?
        1. adc_init();
        2. LCD_Init();
        3. Paint_background(0xffffff,0,0,480,272);
        4. while(1)
        5. {
        6. adc_data=read_adc();
        7. adc_data=(adc_data*32226);
        8. adc_data_tmp[0]=adc_data/100000/100;
        9. //adc_data_tmp[1]=((adc_data/100)0000)/10000;
        10. adc_data_tmp[1]=adc_data000000/1000000;
        11. adc_data_tmp[2]=adc_data00000/100000;
        12. adc_data_tmp[3]=adc_data0000/10000;
        13. adc_data_tmp[4]=adc_data000/1000;
        14. adc_data_tmp[5]=adc_data00/100;
        15. adc_data_tmp[6]=adc_data0/10;
        16. adc_data_tmp[7]=adc_data;
        17. Paint_text(124+8*0,20,0x0,charnum[adc_data_tmp[0]],8,16);
        18. Paint_text(124+8*1,20,0x0,charnum[adc_data_tmp[1]],8,16);
        19. Paint_text(124+8*2,20,0x0,charnum[adc_data_tmp[2]],8,16);
        20. Paint_text(124+8*3,20,0x0,charnum[adc_data_tmp[3]],8,16);
        21. Paint_text(124+8*4,20,0x0,charnum[adc_data_tmp[4]],8,16);
        22. Paint_text(124+8*5,20,0x0,charnum[adc_data_tmp[5]],8,16);
        23. Paint_text(124+8*6,20,0x0,charnum[adc_data_tmp[6]],8,16);
        24. Paint_text(124+8*7,20,0x0,charnum[adc_data_tmp[7]],8,16);
        25. delay_adc();
        26. }



        關(guān)鍵詞: ARMS3C6410ad轉(zhuǎn)

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