深入理解ARM体系架构（S3C6410）---ad转化实例（2）

yuyang911220

lcd字符显示子程序：

[cpp] viewplaincopyprint?

• void Paint_text(unsigned int x, unsigned int y, unsigned int color, unsigned char ch[], unsigned int lengx,int lengy){  
•     int i, j, test, t = -1;           
•     for(i = 0; i < lengy; i++){              
•         for(j = 0; j < lengx; j++){           
•             if(j%8 == 0){           
•                 test = 0x80;           
•                 t++;           
•             }           
•             if(ch[t] & test)           
•                 LCD_BUFFER[y+i][x+j] = color;  
•             else  
•                 LCD_BUFFER[y+i][x+j] = 0xffffff;  
•               
•             test >>= 1;              
•         }            
•     }           
• }   

头文件中字符数据定义：

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• unsigned char charnum[10][16]={  
• {0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x24,0x18,0x00,0x00},  
• {0x00,0x00,0x00,0x10,0x70,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00},  
• {0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x04,0x04,0x08,0x10,0x20,0x42,0x7E,0x00,0x00},  
• {0x00,0x00,0x00,0x3C,0x42,0x42,0x04,0x18,0x04,0x02,0x02,0x42,0x44,0x38,0x00,0x00},  
• {0x00,0x00,0x00,0x04,0x0C,0x14,0x24,0x24,0x44,0x44,0x7E,0x04,0x04,0x1E,0x00,0x00},  
• {0x00,0x00,0x00,0x7E,0x40,0x40,0x40,0x58,0x64,0x02,0x02,0x42,0x44,0x38,0x00,0x00},  
• {0x00,0x00,0x00,0x1C,0x24,0x40,0x40,0x58,0x64,0x42,0x42,0x42,0x24,0x18,0x00,0x00},  
• {0x00,0x00,0x00,0x7E,0x44,0x44,0x08,0x08,0x10,0x10,0x10,0x10,0x10,0x10,0x00,0x00},  
• {0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x24,0x18,0x24,0x42,0x42,0x42,0x3C,0x00,0x00},  
• {0x00,0x00,0x00,0x18,0x24,0x42,0x42,0x42,0x26,0x1A,0x02,0x02,0x24,0x38,0x00,0x00}};  
•   
•   
•   
•   
• unsigned char charnumc[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1C,0x22,0x40,0x40,0x40,0x22,0x1C,0x00,0x00};  
• unsigned char charnumo[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x42,0x42,0x42,0x42,0x3C,0x00,0x00};  
• unsigned char charnumn[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xDC,0x62,0x42,0x42,0x42,0x42,0xE7,0x00,0x00};  
• unsigned char charnumv[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE7,0x42,0x24,0x24,0x28,0x10,0x10,0x00,0x00};  
• unsigned char charnume[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3C,0x42,0x7E,0x40,0x40,0x42,0x3C,0x00,0x00};  
• unsigned char charnumr[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xEE,0x32,0x20,0x20,0x20,0x20,0xF8,0x00,0x00};  
• unsigned char charnums[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x3E,0x42,0x40,0x3C,0x02,0x42,0x7C,0x00,0x00};  
• unsigned char charnumi[]={0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x70,0x10,0x10,0x10,0x10,0x10,0x7C,0x00,0x00};  

主函数程序：

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• adc_init();  
•   
• LCD_Init();  
• Paint_background(0xffffff,0,0,480,272);  
•   
•   
• while(1)  
• {  
• adc_data = read_adc();  
• adc_data = (adc_data*32226);  
•   
• adc_data_tmp[0] = adc_data/100000/100;  
• //adc_data_tmp[1] = ((adc_data/100)0000)/10000;  
• adc_data_tmp[1] = adc_data000000/1000000;  
• adc_data_tmp[2] = adc_data00000/100000;  
• adc_data_tmp[3] = adc_data0000/10000;  
• adc_data_tmp[4] = adc_data000/1000;  
• adc_data_tmp[5] = adc_data00/100;  
• adc_data_tmp[6] = adc_data0/10;  
• adc_data_tmp[7] = adc_data;  
•   
•   
• Paint_text(124+8*0, 20, 0x0,charnum[adc_data_tmp[0]],8, 16);  
• Paint_text(124+8*1, 20, 0x0,charnum[adc_data_tmp[1]],8, 16);  
• Paint_text(124+8*2, 20, 0x0,charnum[adc_data_tmp[2]],8, 16);  
• Paint_text(124+8*3, 20, 0x0,charnum[adc_data_tmp[3]],8, 16);  
• Paint_text(124+8*4, 20, 0x0,charnum[adc_data_tmp[4]],8, 16);  
• Paint_text(124+8*5, 20, 0x0,charnum[adc_data_tmp[5]],8, 16);  
• Paint_text(124+8*6, 20, 0x0,charnum[adc_data_tmp[6]],8, 16);  
• Paint_text(124+8*7, 20, 0x0,charnum[adc_data_tmp[7]],8, 16);  
• delay_adc();  
•   
• }