对应液晶显示器1602的c编码及电路图.docx
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- 上传时间:2023-05-29
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对应液晶显示器1602的c编码及电路图.docx
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对应液晶显示器1602的c编码及电路图
#include
#include
#defineucharunsignedchar
#defineuintunsignedint
voidInitialize_LCD();
voidDisplay_String(uchar,uchar,uchar*);
sbitK1=P3^0;
sbitK2=P3^1;
sbitK3=P3^2;
ucharcode_model[]="PressK1orK2toselectmodel!
!
K3PauseOrGo!
!
!
";
ucharconstline_count=6;
ucharcodecontext[][30]=
{"Welcomeyou,07-",
"--09Automative!
",
"ElectricDesign",
"andPractice!
!
!
",
"Wegohandin",
"handitintopractice",
"andlearnitwell."
};
uchardisplay_buffer[32];
//DelayFunction
voidDelay_Ms_Fun(uintx)
{
uchari;
while(x--)
for(i=0;i<120;i++);
}
//VerticalDisplayFunction
voidVertical_Display()
{
uchari,j,k=0;
uchar*p=context[0];
uchar*q=context[line_count]+strlen(context[line_count]);
while(p { for(i=0;i<16&&p { if((i==0||i==15)&&*p=='') p++; if(*p! ='\0') { display_buffer[i]=*p++; } else { if(++k>line_count) break; p=context[k]; display_buffer[i]=*p++; } } for(j=i;j<16;j++) display_buffer[j]=''; while(F0) Delay_Ms_Fun(5); Display_String(0,0,""); Delay_Ms_Fun(200); while(F0) Delay_Ms_Fun(5); Display_String(0,1,display_buffer); Delay_Ms_Fun(200); while(F0) Delay_Ms_Fun(5); Display_String(0,0,display_buffer); Display_String(0,1,""); Delay_Ms_Fun(200); } Display_String(0,0,""); Display_String(0,1,""); } //HorizontalDisplayFunction voidHorizontal_Display() { uchari,j,k=0,h=0; uchar*p=context[0]; uchar*q=context[line_count]+strlen(context[line_count]); for(i=0;i<16;i++) display_buffer[i]=''; while(p { if((i==16||i==31)&&*p=='') p++; for(i=16;i<32&&p { if(*p! ='\0') { display_buffer[i]=*p++; } else { if(++k>line_count) break; p=context[k]; display_buffer[i]=*p++; } } for(j=i;j<32;j++) display_buffer[j]=''; for(i=0;i<=16;i++) { while(F0) Delay_Ms_Fun(5); Display_String(0,h,display_buffer+i); while(F0) Delay_Ms_Fun(5); Delay_Ms_Fun(20); } h=(h==0)? 1: 0; Delay_Ms_Fun(200); } if(h==1) Display_String(0,1,""); } //ExternalInterrupt voidEX_Interrupt()interrupt0 { F0=! F0; } //MainFunction voidmain() { uintcount=0; IE=0x81; IT0=1; F0=0; Initialize_LCD(); while(K1&&K2) { Display_String(0,0,code_model); Display_String(0,1,code_model+16); Delay_Ms_Fun(600); Display_String(0,0,""); Display_String(0,1,""); Display_String(0,0,code_model+32); Delay_Ms_Fun(600); } while (1) { if(K1==0) { Vertical_Display(); Delay_Ms_Fun(200); } else if(K2==0) { Horizontal_Display(); }Delay_Ms_Fun(200); } } 需要调用的函数如下: #include #include #defineucharunsignedchar #defineuintunsignedint sbitRS=P2^0; sbitRW=P2^1; sbitE=P2^2; //DelayFunction voidDelay_Ms(uintms) { uchart; while(ms--) for(t=0;t<120;t++); } //BusyCheckingFunction ucharBusy_Check() { ucharlcd_status; RS=0; RW=1; E=1; Delay_Ms (1); lcd_status=P0; E=0; returnlcd_status; } //WriteLCDCommandFunction voidWrite_LCD_Command(ucharcmd) { while((Busy_Check()&0x80)==0x80);//busy! wait! ! ! RS=0; RW=0; E=0; P0=cmd; E=1; Delay_Ms (1); E=0; } //WriteLCDDataFunction voidWrite_LCD_Data(uchardat) { while((Busy_Check()&0x80)==0x80);//busy! wait! ! ! RS=1; RW=0; E=0; P0=dat; E=1; Delay_Ms (1); E=0; } //LCDInitializeFuntion voidInitialize_LCD() { Write_LCD_Command(0x38); Delay_Ms (1); Write_LCD_Command(0x01); Delay_Ms (1); Write_LCD_Command(0x06); Delay_Ms (1); Write_LCD_Command(0x0c); Delay_Ms (1); } //DisplayStringFunction voidDisplay_String(ucharx,uchary,uchar*str) { uchari=0; //settingdisplaycharstart if(y==0) Write_LCD_Command(0x80|x); if(y==1) Write_LCD_Command(0xc0|x); for(i=0;i<16;i++) { Write_LCD_Data(str[i]); } } 电路图:
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