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我在网上找了个液晶显示的实例，当我还没学单片机，有一些不懂，求大神帮我在代码上加点解析，谢谢；
代码如下： #include #include typedef unsigned char uchar; typedef unsigned int uint; #define LLCD_CMD_WR PBYTE[0x10] #define LLCD_CMD_RD PBYTE[0x11] #define LLCD_DATA_WR PBYTE[0x12] #define LLCD_DATA_RD PBYTE[0x13] #define RLCD_CMD_WR PBYTE[0x20] #define RLCD_CMD_RD PBYTE[0x21] #define RLCD_DATA_WR PBYTE[0x22] #define RLCD_DATA_RD PBYTE[0x23] ***it busy=P0^1; uchar code hz0[]= { 0x00, 0x00, 0xf8, 0x88, 0x99, 0xea, 0x8c, 0xf8, 0x88, 0xcc, 0xab, 0x99, 0x88, 0xf8, 0x00, 0x00, //曾 0x00, 0x00, 0x00, 0x00, 0xfe, 0x4a, 0x4a, 0x4a, 0x4a, 0x4a, 0x4a, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x20, 0x30, 0xac, 0x63, 0x10, 0x00, 0x40, 0x42, 0x22, 0x22, 0x12, 0x1a, 0x26, 0x42, 0xc0, 0x00, 0x22, 0x23, 0x22, 0x12, 0x12, 0x00, 0x20, 0x21, 0x21, 0x21, 0x3f, 0x21, 0x21, 0x21, 0x20, 0x00, 0x10, 0x60, 0x01, 0x86, 0x60, 0x20, 0xd0, 0x48, 0x44, 0x43, 0x44, 0xc8, 0x30, 0x60, 0x20, 0x00, 0x04, 0x04, 0xfe, 0x01, 0x00, 0x00, 0x7f, 0x80, 0x80, 0x84, 0x88, 0x87, 0x80, 0xe0, 0x00, 0x00, 0x10, 0x60, 0x01, 0xf6, 0x00, 0x10, 0xf8, 0x17, 0x34, 0x54, 0x14, 0x14, 0xf4, 0x04, 0x04, 0x00, 0x04, 0x04, 0xff, 0x00, 0x01, 0x01, 0x1f, 0x11, 0x13, 0x15, 0x51, 0x91, 0x7f, 0x11, 0x11, 0x00, 0x14, 0x24, 0x44, 0x84, 0x7c, 0x40, 0x30, 0xfc, 0x4b, 0x48, 0xf9, 0x4e, 0x48, 0x48, 0x08, 0x00, 0x10, 0x08, 0x06, 0x01, 0x03, 0x0c, 0x00, 0xff, 0x22, 0x22, 0x3f, 0x22, 0x22, 0x22, 0x20, 0x00, 0x00, 0x10, 0x10, 0x12, 0x14, 0x1c, 0x10, 0xf0, 0x9f, 0x10, 0x10, 0x10, 0x10, 0xf8, 0x10, 0x00, 0x00, 0x00, 0x40, 0x20, 0x10, 0x08, 0x06, 0x01, 0x00, 0x11, 0x26, 0x40, 0x20, 0x1f, 0x00, 0x00, 0x00, 0x10, 0x10, 0x10, 0x90, 0x70, 0x00, 0xff, 0x20, 0x60, 0x90, 0x08, 0x04, 0x00, 0x00, 0x00, 0x10, 0x10, 0x08, 0x06, 0x01, 0x40, 0x80, 0x7f, 0x00, 0x00, 0x01, 0x06, 0x0c, 0x18, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x58, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; uchar code hz1[]= { 0xfe, 0x02, 0x32, 0xca, 0x46, 0x20, 0x30, 0x2c, 0xe3, 0x24, 0x28, 0x10, 0x20, 0x20, 0x00, 0x00, 0xff, 0x02, 0x04, 0x43, 0x20, 0x11, 0x4d, 0x81, 0x7f, 0x01, 0x05, 0x09, 0x11, 0x30, 0x00, 0x00, 0x80, 0x88, 0x88, 0x88, 0xff, 0x88, 0x88, 0x88, 0x00, 0xfe, 0x02, 0x02, 0x02, 0xfe, 0x00, 0x00, 0x00, 0x10, 0x3c, 0x13, 0x10, 0x08, 0x0a, 0x1c, 0x08, 0xff, 0x00, 0x08, 0x10, 0x0f, 0x00, 0x00, 0x00, 0x02, 0x82, 0x7a, 0x92, 0x02, 0x02, 0xfe, 0x02, 0x02, 0x02, 0xfa, 0x02, 0x02, 0x00, 0x00, 0x48, 0x46, 0x41, 0x40, 0x41, 0x46, 0x40, 0x7f, 0x48, 0x44, 0x43, 0x40, 0x41, 0x4e, 0x44, 0x00, 0x00, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, 0x00, 0x00, 0x00, 0x20, 0x7f, 0x20, 0x20, 0x20, 0x20, 0x3f, 0x20, 0x20, 0x20, 0x20, 0x20, 0x7f, 0x00, 0x00, 0x00, 0x02, 0x02, 0x02, 0x02, 0x82, 0x42, 0xfe, 0x06, 0x42, 0xc2, 0x82, 0x02, 0x03, 0x02, 0x00, 0x00, 0x08, 0x04, 0x02, 0x01, 0x00, 0x00, 0x7f, 0x00, 0x00, 0x00, 0x01, 0x07, 0x02, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0xbe, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xbe, 0x80, 0x80, 0x80, 0x00, 0x00, 0x40, 0x20, 0x10, 0x0e, 0x10, 0x20, 0x3f, 0x44, 0x44, 0x44, 0x44, 0x44, 0x40, 0x40, 0x00, 0x40, 0x40, 0x44, 0x44, 0x44, 0x44, 0xc4, 0xc4, 0x44, 0x44, 0x46, 0x46, 0x64, 0x60, 0x40, 0x00, 0x00, 0x20, 0x70, 0x38, 0x2c, 0x27, 0x23, 0x31, 0x10, 0x12, 0x14, 0x18, 0x70, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5b, 0x3b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; uchar code hz2[]= { 0x02, 0x02, 0xfe, 0x92, 0x92, 0x92, 0xfe, 0x02, 0x02, 0x7c, 0x84, 0x04, 0x84, 0x7c, 0x04, 0x00, 0x10, 0x10, 0x0f, 0x08, 0x08, 0x04, 0xff, 0x04, 0x22, 0x10, 0x09, 0x06, 0x09, 0x30, 0x10, 0x00, 0x00, 0x02, 0x1c, 0xc0, 0x30, 0x4c, 0x30, 0x0f, 0x08, 0xf8, 0x08, 0x08, 0x28, 0x18, 0x08, 0x00, 0x02, 0x5e, 0x43, 0x20, 0x20, 0x10, 0x08, 0x04, 0x03, 0x01, 0x06, 0x08, 0x30, 0x60, 0x20, 0x00, 0x04, 0x04, 0x04, 0x84, 0xf4, 0x2f, 0x04, 0x04, 0xe4, 0x0f, 0x04, 0xc4, 0x84, 0x04, 0x04, 0x00, 0x00, 0x02, 0x01, 0x00, 0xff, 0x00, 0x08, 0x04, 0x3f, 0x42, 0x41, 0x40, 0x40, 0x78, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x30, 0x2c, 0x23, 0x20, 0x21, 0x36, 0x2c, 0x23, 0x20, 0x20, 0x23, 0x26, 0x3c, 0x28, 0x00, 0xe0, 0x00, 0xff, 0x10, 0xf4, 0x94, 0xff, 0x94, 0xf4, 0x08, 0xf4, 0x13, 0x92, 0x1a, 0xf6, 0x00, 0x00, 0x00, 0xff, 0x10, 0x08, 0x06, 0xff, 0x02, 0x04, 0x80, 0x4f, 0x20, 0x1f, 0x20, 0xcf, 0x00, 0x00, 0xfe, 0x02, 0x02, 0xf2, 0x12, 0x12, 0x12, 0x12, 0x12, 0xf2, 0x02, 0x02, 0xfe, 0x00, 0x00, 0x00, 0x7f, 0x40, 0x40, 0x47, 0x44, 0x44, 0x44, 0x44, 0x44, 0x47, 0x40, 0x40, 0x7f, 0x00, 0x00, 0x00, 0xfe, 0x02, 0xf2, 0x12, 0x12, 0xf2, 0x00, 0xf2, 0x12, 0x1a, 0xd6, 0x12, 0xf2, 0x02, 0x00, 0x20, 0x1f, 0x00, 0x3f, 0x10, 0x09, 0x45, 0x40, 0x2f, 0x20, 0x10, 0x0f, 0x10, 0x2f, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x58, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }; uchar code hz3[]= { 0x00, 0x00, 0x42, 0x44, 0x5c, 0x48, 0x40, 0xff, 0x40, 0x50, 0x48, 0x46, 0x64, 0x40, 0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0xff, 0x04, 0x04, 0x04, 0x04, 0x04, 0x06, 0x04, 0x00, 0x20, 0x38, 0xa7, 0x62, 0x10, 0x20, 0xa0, 0x6c, 0x6b, 0xaa, 0x2a, 0x3a, 0x26, 0xa0, 0x20, 0x00, 0x12, 0x13, 0x12, 0x0a, 0x29, 0x25, 0x12, 0x12, 0x49, 0x85, 0x7f, 0x02, 0x0d, 0x18, 0x08, 0x00, 0x20, 0x10, 0xfc, 0x07, 0xf2, 0x20, 0x98, 0x8f, 0x54, 0xa4, 0x24, 0x54, 0xcc, 0x80, 0x80, 0x00, 0x00, 0x00, 0x7f, 0x00, 0x03, 0x54, 0x54, 0x4a, 0x2b, 0x25, 0x15, 0x12, 0x0a, 0x09, 0x00, 0x00, 0x40, 0x42, 0xcc, 0x00, 0x04, 0x04, 0xe5, 0xb6, 0xac, 0xa4, 0xa6, 0xe5, 0x04, 0x04, 0x00, 0x00, 0x40, 0x20, 0x1f, 0x20, 0x40, 0x40, 0x5f, 0x4a, 0x4a, 0x4a, 0x4a, 0x5f, 0x40, 0x40, 0x40, 0x00, 0x00, 0x00, 0x42, 0x44, 0x5c, 0x48, 0x40, 0xff, 0x40, 0x50, 0x48, 0x46, 0x64, 0x40, 0x00, 0x00, 0x00, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0xff, 0x04, 0x04, 0x04, 0x04, 0x04, 0x06, 0x04, 0x00, 0x20, 0x38, 0xa7, 0x62, 0x10, 0x20, 0xa0, 0x6c, 0x6b, 0xaa, 0x2a, 0x3a, 0x26, 0xa0, 0x20, 0x00, 0x12, 0x13, 0x12, 0x0a, 0x29, 0x25, 0x12, 0x12, 0x49, 0x85, 0x7f, 0x02, 0x0d, 0x18, 0x08, 0x00, 0x10, 0x10, 0x92, 0x92, 0x92, 0xf2, 0x9e, 0x92, 0x92, 0x92, 0x92, 0x92, 0xfe, 0x10, 0x10, 0x00, 0x40, 0x20, 0x10, 0x0c, 0xfe, 0x45, 0x44, 0x44, 0x44, 0x44, 0x44, 0x44, 0xfd, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x24, 0x24, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, }; void lcd_cmd_wr(uchar cmdcode,uchar f); void lcd_data_wr(uchar ldata,uchar f); void chech_busy(uchar f); void lcd_hz_wr(uchar posx,uchar posy,uchar *hz); void lcd_str_wr(uchar row,uchar col,uchar n,uchar *str); void lcd_rol(); void lcd_init(); void delay(uint n); void main() { while(1) { lcd_init(); lcd_str_wr(0,0,8,hz0); delay(100); lcd_str_wr(1,0,8,hz1); delay(100); lcd_str_wr(2,0,8,hz2); delay(100); lcd_str_wr(3,0,8,hz3); delay(100); lcd_rol(); delay(1000); lcd_rol(); delay(1000); } } void lcd_init() { uint i; lcd_cmd_wr(0x3f,0); lcd_cmd_wr(0xc0,0); lcd_cmd_wr(0xb8,0); lcd_cmd_wr(0x40,0); lcd_cmd_wr(0x3f,1); lcd_cmd_wr(0xc0,1); lcd_cmd_wr(0xb8,1); lcd_cmd_wr(0x40,1); for(i=0;i<256;i++) { lcd_data_wr(0x00,0); lcd_data_wr(0x00,1); } lcd_cmd_wr(0xb8+4,0); lcd_cmd_wr(0xb8+4,1); for(i=0;i<256;i++) { lcd_data_wr(0x00,0); lcd_data_wr(0x00,1); } } void lcd_cmd_wr(uchar cmdcode,uchar f) { chech_busy(f); if(f==0) LLCD_CMD_WR=cmdcode; else RLCD_CMD_WR=cmdcode; } void chech_busy(uchar f) { if(f==0) LLCD_CMD_RD; else RLCD_CMD_RD; while(busy); } void lcd_str_wr(uchar row,uchar col,uchar n,uchar *str) { uchar i; for(i=0;i lcd_hz_wr(row,col,str+i*32); delay(50); col++; } } void lcd_hz_wr(uchar posx,uchar posy,uchar *hz) { uchar i; if(posy<4) { lcd_cmd_wr(0xb8+2*posx,0); lcd_cmd_wr(0x40+16*posy,0); for(i=0;i<16;i++) lcd_data_wr(hz[i],0); lcd_cmd_wr(0xb8+2*posx+1,0); lcd_cmd_wr(0x40+16*posy,0); for(i=16;i<32;i++) lcd_data_wr(hz[i],0); } else { lcd_cmd_wr(0xb8+2*posx,1); lcd_cmd_wr(0x40+16*(posy-4),1); for(i=0;i<16;i++) lcd_data_wr(hz[i],1); lcd_cmd_wr(0xb8+2*posx+1,1); lcd_cmd_wr(0x40+16*(posy-4),1); for(i=16;i<32;i++) lcd_data_wr(hz[i],1); } } void lcd_data_wr(uchar ldata,uchar f) { chech_busy(f); if(f==0) LLCD_DATA_WR=ldata; else RLCD_DATA_WR=ldata; } void lcd_rol() { uchar i; for(i=0;i<64;i++) { lcd_cmd_wr(0xc0+i,0); lcd_cmd_wr(0xc0+i,1); delay(10); } } void delay(uint n) { uint i; for(;n>0;n--) for(i=500;i>0;i--); } 
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9个回答
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李先生z 发表于 2015-5-2 15:19 void lcd_cmd_wr(uchar cmdcode,uchar f); 写命令 void lcd_data_wr(uchar ldata,uchar f); 写数据 void chech_busy(uchar f); 忙检测 void lcd_hz_wr(uchar posx,uchar posy,uchar *hz); 显示汉子 void lcd_str_wr(uchar row,uchar col,uchar n,uchar *str); 显示字符串 void lcd_rol(); 写图形的 void lcd_init(); 液晶初始化！亲，这个是实用的一个前提！
最佳答案
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void lcd_cmd_wr(uchar cmdcode,uchar f); void lcd_data_wr(uchar ldata,uchar f); void chech_busy(uchar f); void lcd_hz_wr(uchar posx,uchar posy,uchar *hz); void lcd_str_wr(uchar row,uchar col,uchar n,uchar *str); void lcd_rol(); void lcd_init(); //这几个 |
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谢谢分享，十分喜欢！
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武力戡乱 发表于 2015-5-2 20:42 谢谢，我还没学单片机，现在准备了解下 |
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武力戡乱 发表于 2015-5-2 20:42 我还没学单片机，现在准备了解下，谢谢 |
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谢谢，我还没学单片机
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武力戡乱 发表于 2015-5-2 20:42 谢谢，我还没学单片机 |
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