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在我买的开发板上显示正常
但是我用单片机最小系统，连接好电路，打开电源， 显示变成了下面这样 (￣△￣；) 好奇怪呀， 其他的都和开发板上的一样 ，就是显示字符串不对 ( ﹁ ﹁ ) ~→ 我在网上查到lcd1602里面有上拉电阻，所以我接电路就直接相连. 程序是没问题的还是贴粗来吧： #include #define LCD P0 #define delaytime 500 ***it E = P2^7; ***it RS = P2^6; ***it RW = P2^5; unsigned char code display1[] = "My name is Cjl "; unsigned char code display2[] = "I want to "; unsigned char code display3[] = "master 89c52 "; unsigned char code display4[] = "I think that "; unsigned char code display5[] = "It's interesting"; unsigned char code display6[] = "It's so cool!!!!"; void LCD_Com(unsigned char x); void LCD_Data(unsigned char x); void Init1(); void Init2(); void delay(unsigned int x); void main() { unsigned char i; while(1){ Init1(); for(i = 0; i < 16; i++) LCD_Data(display1); delay(delaytime); Init2(); for(i = 0; i < 16; i++) LCD_Data(display2); delay(delaytime); Init1(); for(i = 0; i < 16; i++) LCD_Data(display3); delay(delaytime); Init2(); for(i = 0; i < 16; i++) LCD_Data(display4); delay(delaytime); Init1(); for(i = 0; i < 16; i++) LCD_Data(display5); delay(delaytime); Init2(); for(i = 0; i < 16; i++) LCD_Data(display6); delay(delaytime); } } void LCD_Com(unsigned char x) { RS = 0; RW = 0; LCD = x; delay(10); E = 1; delay(10); E = 0; } void LCD_Data(unsigned char x) { RS = 1; RW = 0; LCD = x; delay(10); E = 1; delay(10); E = 0; } void Init1() { LCD_Com (0x38); LCD_Com (0x0c); LCD_Com (0x06); LCD_Com (0x01); LCD_Com (0x80); } void Init2() { LCD_Com (0x38); LCD_Com (0x0c); LCD_Com (0x06); // LCD_Com (0x01); LCD_Com (0xc0); } void delay(unsigned int x) { unsigned int i, j; for(i = x; i > 0; i--) for(j = 110; j > 0; j--) ; } 
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我也想知道，有答案告诉我一下。
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#include
#define LCD P0 #define delaytime 500 ***it E = P2^7; ***it RS = P2^6; ***it RW = P2^5; unsigned char code display1[] = "My name is Cjl "; unsigned char code display2[] = "I want to "; unsigned char code display3[] = "master 89c52 "; unsigned char code display4[] = "I think that "; unsigned char code display5[] = "It's interesting"; unsigned char code display6[] = "It's so cool!!!!"; void LCD_Com(unsigned char x); void LCD_Data(unsigned char x); void Init1(); void Init2(); void delay(unsigned int x); void main() { unsigned char i; while(1){ Init1(); for(i = 0; i < 16; i++) LCD_Data(display1[i]); delay(delaytime); Init2(); for(i = 0; i < 16; i++) LCD_Data(display2[i]); delay(delaytime); Init1(); for(i = 0; i < 16; i++) LCD_Data(display3[i]); delay(delaytime); Init2(); for(i = 0; i < 16; i++) LCD_Data(display4[i]); delay(delaytime); Init1(); for(i = 0; i < 16; i++) LCD_Data(display5[i]); delay(delaytime); Init2(); for(i = 0; i < 16; i++) LCD_Data(display6[i]); delay(delaytime); } } void LCD_Com(unsigned char x) { RS = 0; RW = 0; LCD = x; delay(10); E = 1; delay(10); E = 0; } void LCD_Data(unsigned char x) { RS = 1; RW = 0; LCD = x; delay(10); E = 1; delay(10); E = 0; } void Init1() { LCD_Com (0x38); LCD_Com (0x0c); LCD_Com (0x06); LCD_Com (0x01); LCD_Com (0x80); } void Init2() { LCD_Com (0x38); LCD_Com (0x0c); LCD_Com (0x06); // LCD_Com (0x01); LCD_Com (0xc0); } void delay(unsigned int x) { unsigned int i, j; for(i = x; i > 0; i--) for(j = 110; j > 0; j--) ; } |
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