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IMG_20180509_180919.jpg (4.63 MB, 下載次數: 52)
下載附件
2018-5-9 18:17 上傳
這是主要程序： 按指定位置顯示一個字符，怎樣修改才能 顯示正常數字 - //寫數據
- void WriteDataLCD(unsigned char WDLCD)
- {
- ReadStatusLCD(); //檢測忙
- LCD_RS = 1;
- LCD_RW = 0;
- LCD_Data = WDLCD;
- LCD_E = 1;
- LCD_E = 1;
- LCD_E = 1;
- LCD_E = 0;
- }
- //寫指令
- void WriteCommandLCD(unsigned char WCLCD,BuysC) //BuysC為0時忽略忙檢測
- {
- if (BuysC) ReadStatusLCD(); //根據需要檢測忙
- LCD_RS = 0;
- LCD_RW = 0;
- LCD_Data = WCLCD;
- LCD_E = 1;
- LCD_E = 1;
- LCD_E = 1;
- LCD_E = 0;
- }
- //讀數據
- unsigned char ReadDataLCD(void)
- {
- LCD_RS = 1;
- LCD_RW = 1;
- LCD_E = 0;
- LCD_E = 0;
- LCD_E = 1;
- return(LCD_Data);
- }
- //讀狀態
- unsigned char ReadStatusLCD(void)
- {
- LCD_Data = 0xFF;
- LCD_RS = 0;
- LCD_RW = 1;
- LCD_E = 1;
- while (LCD_Data & Busy); //檢測忙信號
- LCD_E = 0;
- return(LCD_Data);
- }
- void LCDInit(void) //LCM初始化
- {
- WriteCommandLCD(0x30,1); //顯示模式設置,開始要求每次檢測忙信號
- WriteCommandLCD(0x01,1); //顯示清屏
- WriteCommandLCD(0x06,1); // 顯示光標移動設置
- WriteCommandLCD(0x0C,1); // 顯示開及光標設置
- }
- void LCDClear(void) //清屏
- {
- WriteCommandLCD(0x01,1); //顯示清屏
- WriteCommandLCD(0x34,1); // 顯示光標移動設置
- WriteCommandLCD(0x30,1); // 顯示開及光標設置
- }
- //按指定位置顯示一個字符
- void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)
- {
- if(Y<1)
- Y=1;
- if(Y>4)
- Y=4;
- X &= 0x0F; //限制X不能大于16，Y不能大于1
- switch(Y){
- case 1:X|=0X80;break;
- case 2:X|=0X90;break;
- case 3:X|=0X88;break;
- case 4:X|=0X98;break;
- }
- WriteCommandLCD(X, 0); //這里不檢測忙信號，發送地址碼
- WriteDataLCD(DData);
- }
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