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深入理解ARM體系架構（S3C6410）---ad轉化實例

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

本文引用地址：http://m.butianyuan.cn/article/201611/317830.htm

ad轉化器相關代碼：

[cpp]view plaincopyprint?
  1. voidadc_init()
  2. {
  4. charpreScaler=66500000/2500000-1;//PCLK=66M
  5. rADCCON=(1<<14)|(preScaler<<6)|(0<<3)|(0<<2);//通道AIN0
  6. //rADCCON=0x44c1;//通道AIN0
  7. }
  8. intread_adc()
  9. {
  11. rADCCON|=0x01;//startADC
  13. while(rADCCON&0x1);//checkifEnable_startislow
  16. while(!(rADCCON&0x8000));//checkifEC(EndofConversion)flagishigh
  18. return((int)rADCDAT0&0x3ff);
  19. }
  21. voiddelay_adc()
  22. {
  23. inti,j;
  24. for(i=0;i<10000000;i++)
  25. for(j=0;j>10000000;j++);
  26. }

lcd相關代碼：

初始化子程序：

[cpp]view plaincopyprint?
  1. voidLCD_Init(void)
  2. {
  4. //設置LCD調光
  5. //rGPFCON|=(1<<30);//設置LCD調光管腳GPF15(PWM1)為輸出
  6. //rGPFDAT|=(1<<15);//rGPFDAT=0x00002000;
  7. //rGPFPUD&=~(1<<30);//rGPFPUD=0x00000000;
  9. //設置VD0~15
  10. rGPICON=0xaaaaaaaa;//設置GPI0~15為LCDVD0~15
  11. rGPIPUD=0xffffffff;
  15. //設置VD16~23和HSYNC、VSYNC、VDEN、VCLK
  16. rGPJCON=0x00aaaaaa;
  17. rGPJPUD=0xffffffff;
  18. rWINCON0&=~(1<<0);
  20. //LCD寄存器設置
  21. rSPCON&=(~0x3);
  22. rSPCON|=(1<<0);//設置RGBI/F配置
  23. rMIFPCON&=~(1<<3);//設置LCD支路為一般模式
  25. rVIDCON0=(0<<29)|(0<<26)|(0<<17)|(1<<16)|(9<<6)|(0<<5)|(1<<4)|(0<<3)|(0<<2);
  26. rVIDCON1=1<<7;//1=RGB類型LCD設備在VCLK上升沿得到視頻數(shù)據(jù)
  28. //設置屏的時序
  29. rVIDTCON0=(0x00<<16)|(0x00<<8)|(0x02<<0);
  30. rVIDTCON1=(0x2d<<16)|(0x04<<8)|(0x06<<0);
  31. rVIDTCON2=(271<<11)|(479<<0);
  33. //設置窗口格式
  34. rWINCON0=11<<2;//設置24BPP
  36. //設置窗口位置
  37. rVIDOSD0A=(0<<11)|(0<<0);
  38. rVIDOSD0B=(479<<11)|(271<<0);
  39. rVIDOSD0C=(((480*272)&0xffffff)<<0);//4.3屏幕分辨率480*272
  41. //設置Window1的開始和結束的緩存地址與地址在內存中的存放地址以及緩存的大小
  42. rVIDW00ADD0B0=((addr>>24)<<24)|(addr&0xffffff);
  43. rVIDW00ADD1B0=(addr&0xffffff+480*272);
  44. rVIDW00ADD2=(0<<13)|(480<<0);
  46. //設置抖動
  47. rDITHMODE=(1<<5)|(1<<3)|(1<<1)|(1<<0);
  49. //開顯示
  50. rVIDCON0|=(3<<0);
  51. rWINCON0|=(1<<0);
  52. }

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;
  14. test>>=1;
  15. }
  16. }
  17. }


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}};
  16. unsignedcharcharnumc[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x22,0x40,0x40,0x40,0x22,0x1C,0x00,0x00};
  17. unsignedcharcharnumo[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x42,0x42,0x3C,0x00,0x00};
  18. unsignedcharcharnumn[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xDC,0x62,0x42,0x42,0x42,0x42,0xE7,0x00,0x00};
  19. unsignedcharcharnumv[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE7,0x42,0x24,0x24,0x28,0x10,0x10,0x00,0x00};
  20. unsignedcharcharnume[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x7E,0x40,0x40,0x42,0x3C,0x00,0x00};
  21. unsignedcharcharnumr[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xEE,0x32,0x20,0x20,0x20,0x20,0xF8,0x00,0x00};
  22. unsignedcharcharnums[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3E,0x42,0x40,0x3C,0x02,0x42,0x7C,0x00,0x00};
  23. 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();
  3. LCD_Init();
  4. Paint_background(0xffffff,0,0,480,272);
  7. while(1)
  8. {
  9. adc_data=read_adc();
  10. adc_data=(adc_data*32226);
  12. adc_data_tmp[0]=adc_data/100000/100;
  13. //adc_data_tmp[1]=((adc_data/100)0000)/10000;
  14. adc_data_tmp[1]=adc_data000000/1000000;
  15. adc_data_tmp[2]=adc_data00000/100000;
  16. adc_data_tmp[3]=adc_data0000/10000;
  17. adc_data_tmp[4]=adc_data000/1000;
  18. adc_data_tmp[5]=adc_data00/100;
  19. adc_data_tmp[6]=adc_data0/10;
  20. adc_data_tmp[7]=adc_data;
  23. Paint_text(124+8*0,20,0x0,charnum[adc_data_tmp[0]],8,16);
  24. Paint_text(124+8*1,20,0x0,charnum[adc_data_tmp[1]],8,16);
  25. Paint_text(124+8*2,20,0x0,charnum[adc_data_tmp[2]],8,16);
  26. Paint_text(124+8*3,20,0x0,charnum[adc_data_tmp[3]],8,16);
  27. Paint_text(124+8*4,20,0x0,charnum[adc_data_tmp[4]],8,16);
  28. Paint_text(124+8*5,20,0x0,charnum[adc_data_tmp[5]],8,16);
  29. Paint_text(124+8*6,20,0x0,charnum[adc_data_tmp[6]],8,16);
  30. Paint_text(124+8*7,20,0x0,charnum[adc_data_tmp[7]],8,16);
  31. delay_adc();
  33. }

關鍵詞： ARMS3C6410ad轉

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