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单片机c语言应用100例 单片机C语言 单片机C语言应用

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单片机C语言应用100例,单片机c语言应用100例,单片机C语言,单片机C语言应用

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/82LCD“Welcome to China“ #include / #include /_nop_() sbit RS=P20; /RSP2.0 sbit RW=P21; /RWP2.1 sbit E=P22; /EP2.2 sbit BF=P07; /BFP0.7 unsigned char code string =“Welcome to China“; /* 1ms (3j+2)*i=(333+2)10=1010()1 */ void delay1ms() unsigned char i,j; for(i=0;i10;i+) for(j=0;j33;j+) ; /* n */ void delay(unsigned char n) unsigned char i; for(i=0;in;i+) delay1ms(); /* resultresult=1;result=0 */ unsigned char BusyTest(void) bit result; RS=0; /涨RSRW RW=1; E=1; /E=1 _nop_(); / _nop_(); _nop_(); _nop_(); / result=BF; /result E=0; return result; /* dictate */ void WriteInstruction (unsigned char dictate) while(BusyTest()=1); / RS=0; /涨RSR/W RW=0; E=0; /E(8-6E壬 / E01“0“ _nop_(); _nop_(); / P0=dictate; /P0 _nop_(); _nop_(); _nop_(); _nop_(); / E=1; /E _nop_(); _nop_(); _nop_(); _nop_(); / E=0; /E /* x */ void WriteAddress(unsigned char x) WriteInstruction(x|0x80); /涨“80H+x“ /* (ASCII) y() */ void WriteData(unsigned char y) while(BusyTest()=1); RS=1; /RSRW RW=0; E=0; /E(8-6E壬 / E01“0“ P0=y; /P0 _nop_(); _nop_(); _nop_(); _nop_(); / E=1; /E _nop_(); _nop_(); _nop_(); _nop_(); / E=0; /E /* LCD */ void LcdInitiate(void) delay(15); /15msLCD WriteInstruction(0x38); /162578 delay(5); /5ms WriteInstruction(0x38); delay(5); WriteInstruction(0x38); delay(5); WriteInstruction(0x0f); / delay(5); WriteInstruction(0x06); / delay(5); WriteInstruction(0x01); / delay(5); void main(void) / unsigned char i; LcdInitiate(); /LCD delay(10); while(1) WriteInstruction(0x01);/ WriteAddress(0x00); / 5 i = 0; while(